IBM System Storage DS4700 Express Storage Subsystem Installation, User’s and Maintenance Guide GC26-7843-05
IBM System Storage DS4700 Express Storage Subsystem Installation, User’s and Maintenance Guide GC26-7843-05
Note: Before using this information and the product it supports, be sure to read the general information in the “Safety” on page xv and “Notices” on page 215 sections. Sixth Edition (November 2011) © Copyright IBM Corporation 2010. US Government Users Restricted Rights – Use, duplication or disclosure restricted by GSA ADP Schedule Contract with IBM Corp.
Contents Figures . . . . . . . . . . . . . . . . . . . . . . . . . . . . ix Tables. . . . . . . . . . . . . . . . . . . . . . . . . . . . xiii Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . xv About this document . . . . . . . . . . . . . . . . . . . . . . xxi Who should read this document . . . . . . . . . . . . . . . . . . xxi How this document is organized . . . . . . . . . . . . . . . . . . xxi DS4000 Storage Subsystem installation tasks - General overview . . . . . .
Electrical requirements . . . . . . Power and site wiring requirements fan units . . . . . . . . . Power and site wiring requirements fan units . . . . . . . . . Heat output, airflow, and cooling . . . for . for . . . . . models . . . models . . . . . . Chapter 2. Installing the storage subsystem . . Installation overview . . . . . . . . . . . . Handling static-sensitive devices . . . . . . . Preparing for installation . . . . . . . . . . Tools and hardware required . . . . . . . . Preparing the site . .
DS4700 Express Storage Subsystem drive cabling rules and recommendations . . . . . . . . . . . . . . . . . . . . . 78 One DS4700 Express and one EXP100 storage expansion enclosure. . . 80 One DS4700 Express and two EXP100 storage expansion enclosures 81 One DS4700 Express and three or more EXP100 storage expansion enclosures. . . . . . . . . . . . . . . . . . . . . . . . 82 One DS4700 Express and one EXP710 storage expansion enclosure. . .
Restoring power after an unexpected shutdown Recovering from an overheated power supply and Cache memory and cache battery . . . . . . Cache memory . . . . . . . . . . . . Subsystem cache battery . . . . . . . . . fan . . . . . unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 137 138 140 141 142 Chapter 5. Replacing components . . . Handling static-sensitive devices . . . . . Service Action Allowed Status LED . . . . Replacing a controller . . . .
Important notes . . . . . . . . . . . . . . . . . . . . . . . . Particulate contamination. . . . . . . . . . . . . . . . . . . . . Documentation format . . . . . . . . . . . . . . . . . . . . . . Electronic emission notices . . . . . . . . . . . . . . . . . . . . Federal Communications Commission (FCC) statement . . . . . . . . Industry Canada Class A emission compliance statement . . . . . . . . Avis de conformité à la réglementation d'Industrie Canada . . . . . . .
viii IBM System Storage DS4700 Express Storage Subsystem: Installation, User’s and Maintenance Guide
Figures 1. DS4700 Express hot-swap drive bays . . . . . . . . . . . . . . . . . . . . 2. Back view; connectors, switch, ports, enclosure ID on model 70 . . . . . . . . . . 3. Back view; connectors, switch, ports, enclosure ID on model 72 . . . . . . . . . . 4. Power supply and fan unit components for DS4700 Express model 70 . . . . . . . . 5. Power supply and fan unit components for DS4700 Express model 72 . . . . . . . . 6. Power supply and fan unit and airflow . . . . . . . . . . . . . . . . . . . . 7.
54. One DS4700 Express and three storage expansion enclosure — Recommended cabling . . . . 74 55. One DS4700 Express and four storage expansion enclosure — Recommended cabling. . . . . 74 56. One DS4700 Express and up to six storage expansion enclosure — Recommended cabling 75 57. One DS4700 Express and up to six storage expansion enclosure — Not recommended . . . . 76 58. One DS4700 Express and two or more storage expansion enclosures in a mixed environment — Recommended cabling . . . . . . . . . . . . . .
93. DC power supply and fan unit cabling scheme - dual-level redundancy . . 94. DC power supply connector - PIN positions . . . . . . . . . . . . 95. DC wiring from DS4700 Express to disconnect device and dc power source 96. Power supply and fan unit LEDs. . . . . . . . . . . . . . . . . 97. DC power supply and fan unit LEDs . . . . . . . . . . . . . . . 98. Front LEDs and controls . . . . . . . . . . . . . . . . . . . 99. Battery unit LEDs . . . . . . . . . . . . . . . . . . . . . . 100.
xii IBM System Storage DS4700 Express Storage Subsystem: Installation, User’s and Maintenance Guide
Tables 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. 16. 17. 18. 19. 20. 21. 22. 23. 24. 25. 26. 27. 28. 29. 30. 31. 32. 33. 34. 35. 36. 37. 38. 39. 40. 41. 42. 43. 44. 45. 46. 47. 48. Where to find DS4000 installation and configuration procedures . . . . . . . . . . . . . xxii Description of Figure 2 on page 10 . . . . . . . . . . . . . . . . . . . . . . . . 10 Description of Figure 3 on page 10 . . . . . . . . . . . . . . . . . . . . . . . . 10 Description of Figure 4 on page 13 . . . . . . . . . .
49. 50. 51. 52. 53. 54. 55. 56. 57. 58. 59. 60. 61. 62. 63. 64. 65. 66. 67. 68. xiv Drive LED activity . . . . . . . . . . . . . . . . . . . Data transfer rates for drive modules . . . . . . . . . . . . Symptom-to-FRU index . . . . . . . . . . . . . . . . . Parts listing (DS4700 Express Storage Subsystem). . . . . . . Storage subsystem and controller information record . . . . . . Sample information record . . . . . . . . . . . . . . . . Hard disk drive record . . . . . . . . . . . . . . . . .
Safety The caution and danger statements that this document contains can be referenced in the multilingual IBM® Safety Information document that is provided with your IBM System Storage® DS4700 Express Storage Subsystem. Each caution and danger statement is numbered for easy reference to the corresponding statements in the translated document. v Danger: These statements indicate situations that can be potentially lethal or extremely hazardous to you.
DANGER Electrical current from power, telephone, and communication cables is hazardous. To avoid a shock hazard: v Do not connect or disconnect any cables or perform installation, maintenance, or reconfiguration of this product during an electrical storm. v Connect all power cords to a properly wired and grounded electrical outlet. v Connect to properly wired outlets any equipment that will be attached to this product. v When possible, use one hand only to connect or disconnect signal cables.
CAUTION: When laser products (such as CD-ROMs, DVD drives, fiber optic devices, or transmitters) are installed, note the following: v Do not remove the covers. Removing the covers of the laser product could result in exposure to hazardous laser radiation. There are no serviceable parts inside the device. v Use of controls or adjustments or performance of procedures other than those specified herein might result in hazardous radiation exposure.
Statement 5: CAUTION: The power control button on the device and the power switch on the power supply do not turn off the electrical current supplied to the device. The device also might have more than one power cord. To remove all electrical current from the device, ensure that all power cords are disconnected from the power source. 2 1 Statement 8: CAUTION: Never remove the cover on a power supply or any part that has the following label attached.
CAUTION: This equipment is designed to permit the connection of the earthed conductor of the dc supply circuit to the earthing conductor at the equipment. This equipment is designed to permit the connection of the earthed conductor of the dc supply circuit to the earthing conductor at the equipment.
Cable Warning: WARNING: Handling the cord on this product or cords associated with accessories sold with this product, will expose you to lead, a chemical known to the State of California to cause cancer, and birth defects or other reproductive harm. Wash hands after handling.
About this document This document provides instructions for installing and customizing the configuration of your IBM System Storage DS4700 Express Storage Subsystem. It also provides maintenance procedures and troubleshooting information. Who should read this document This document is intended for system operators and service technicians who have extensive knowledge of Fibre Channel and network technology.
Appendix E, “Accessibility,” on page 213 details accessibility information. DS4000 Storage Subsystem installation tasks - General overview Table 1 provides a sequential list of many installation and configuration tasks that are common to most DS4000 configurations. When you install and configure your DS4000 storage subsystem, refer to this table to find the documentation that explains how to complete each task. Table 1.
Table 1.
Table 1.
Table 1.
Table 1.
Finding DS4000 readme files 1. Go to the following Web site: www.ibm.com/systems/support/storage/disk 2. Click the link for your Storage Subsystem (for example, DS4800). 3. When the subsystem support page opens, click the Download tab. 4. Under the Download tab, click Storage Manager, firmware, HBA, tools, support & pubs (including readmes). 5. Now, click the appropriate tab for the type of readme file that you are looking for: v Firmware v Storage Mgr v HBA v Tools A table displays as you click each tab.
http://www.ibm.com/systems/support/storage/disk Select your Storage Subsystem (for example, DS4800). Premium feature activation Activate a DS4000® premium feature by using the online tool: www-912.ibm.com/PremiumFeatures/jsp/keyInput.jsp IBM publications center Find IBM publications: www.ibm.com/shop/publications/order/ Support for System p® servers Find the latest information supporting System p AIX® and Linux servers: www.ibm.com/systems/support/supportsite.
In the U.S. and Canada, hardware service and support is available 24 hours a day, 7 days a week. In the U.K., these services are available Monday through Friday, from 9 a.m. to 6 p.m. Fire suppression systems A fire suppression system is the responsibility of the customer. The customer's own insurance underwriter, local fire marshal, or a local building inspector, or both, should be consulted in selecting a fire suppression system that provides the correct level of coverage and protection.
xxx IBM System Storage DS4700 Express Storage Subsystem: Installation, User’s and Maintenance Guide
Chapter 1. Introduction This chapter describes the operating specifications, features, and components for the IBM System Storage DS4700 Express Storage Subsystem (hereafter referred to as DS4700 or storage subsystem). This chapter also includes an inventory checklist and important information on best practices guidelines and product updates for your DS4700 Express. Overview IBM DS4000 solutions support the large and growing data storage requirements of business-critical applications.
environments. DS4700 Express Storage Subsystems that shipped before the introduction of the DS4700 Express models with dc power supply and fan units support standard IT and office operating environments only. You can identify whether a DS4700 Express Storage Subsystem is NEBS/Telco compliant by checking the serial number. Any DS4700 Express Storage Subsystem with serial numbers starting at 138500A and higher are NEBS level 3/Telco compliant.
Operating system support For supported operating systems, see the latest DS4000 Storage Manager host software readme file and the IBM DS4000 series products interoperability matrix at the following Web site for additional host operating system support: www-1.ibm.com/servers/storage/disk/ds4000/interop-matrix.html See “Finding DS4000 readme files” on page xxvii to learn how to access the DS4000 readme files on the Web.
– Diagnostic wrap plug/coupler (1) – Serial cable adapter (1) – Rack-mounting hardware kit (1), including: - Rails (2) (right and left assembly) - M5 black hex-head slotted screws (12) - Washers (8) – 4 Gbps SFPs (6) (Model 72A, 72H, 72S, and 72T only. The SFPs are installed in the DS4700 Express SFP ports.) – 4 Gbps SFPs (4) (Model 70A, 70H, 70S, and 70T only. These SFPs are installed in the DS4700 Express SFP ports.
Note: If you ordered additional premium features or entitlements, the premium features activation or entitlement kits may also be shipped inside the box. If an item is missing or damaged, contact your IBM reseller or your IBM marketing representative. A rack mounting template and instructions for installing the support rails and the storage subsystem are provided in “Installing the support rails” on page 36.
having all the right or all the left power cables plug into the same power circuit enables the DS4000 devices in the configuration to power on simultaneously during an unattended restoration of power. Note: Do not overload the circuits that power your storage subsystem and storage expansion enclosures. Use additional pairs of ac power distribution units (PDUs) if necessary. Refer to Table 17 on page 26 for information on storage subsystem power requirements.
v Filter and filter retainer The hot-swap features enable you to remove and replace 2 or 4 Gbps fibre channel or SATA hard E-DDMs, power supply and fan units, and controllers without turning off the storage subsystem. You can maintain the availability of your system while a hot-swap device is removed, installed, or replaced. Enhanced Disk Drive Modules (E-DDMs) The hot-swap drive bays that are accessible from the front of your storage subsystem are shown in Figure 1. Figure 1.
subsystems such as DS4100 or DS4300 storage subsystems. The DS4700 Express E-DDM option CRUs are not interchangeable with those of the DS4200 Express and EXP420. When replacing an E-DDM CRU, be sure to order and install the correct E-DDM CRU. Using non-supported E-DDM options or FRUs will result in the E-DDM being locked out by the DS4700 Express controller firmware and might also damage the drive connector in the enclosure midplane. Attention: 1.
comprise the enclosure ID are referred to as x10 and x1 digits. The enclosure ID provides a unique identifier for each enclosure in the storage subsystem. The storage management software automatically sets the enclosure ID number. You can only change the enclosure ID setting through the DS4000 storage management software. There are no switches on the DS4700 Express chassis to manually set the enclosure ID. Both controller enclosure ID numbers will be identical under normal operating conditions.
6 5 4 3 ds470004 7 1 2 3 4 5 6 7 Figure 2. Back view; connectors, switch, ports, enclosure ID on model 70 Table 2. Description of Figure 2 Number Description 1 Controller A 2 Controller B 3 Host channels 4 Ethernet ports 5 Serial port 6 Dual-ported drive channel 7 Enclosure ID 6 5 4 3 ds470016 7 1 2 3 4 5 6 7 Figure 3. Back view; connectors, switch, ports, enclosure ID on model 72 Table 3.
Setting up IP addresses for DS4000 storage controllers After you install DS4000 Storage Manager (as described in the DS4000 Storage Manager Installation and Support Guide for your host operating system), complete one of the following procedures to set up IP addresses: v “Steps for setting up the DHCP/BOOTP server and network” v “Steps for assigning static TCP/IP addresses to the DS4000 controllers” Steps for setting up the DHCP/BOOTP server and network: To complete this procedure, you must have the followin
2. Start the DS4000 Storage Manager client software. The Enterprise Management window opens. 3. Add the DS4000 subsystem to the DS4000 Enterprise Management domain using the default IP addresses. 4. In the Enterprise Management window, click on the name of the default storage subsystem. The Subsystem Management window opens. 5. In the Subsystem Management window, right-click the controller icon and select Change —> Network Configuration in the pull-down menu. The Change Network Configuration window opens.
4 3 2 ds470040 1 3 4 Figure 4. Power supply and fan unit components for DS4700 Express model 70 Table 4. Description of Figure 4 Number Description 1 Power supply and fan unit A 2 Power supply and fan unit B 3 Power connector 4 Power switch 4 3 2 ds470041 1 3 4 Figure 5. Power supply and fan unit components for DS4700 Express model 72 Table 5.
Latch Lever Figure 6. Power supply and fan unit and airflow DC power supply and fan units The DS4700 Express Storage Subsystem (models 70S, 70T, 72S, and 72T) has two removable dc power supply and fan units. Each dc power supply and fan unit contains one dc power supply and two fans. The four fans pull air through the drive from front to back across the drives.
1 0 07 70 ds4 1 Figure 7. DC power supply and fan unit Figure 8 shows the dc power supply and fan unit components for the DS4700 Express model 70 and Figure 9 on page 16 shows the dc power supply and fan unit components for the DS4700 Express model 72. 4 7 6 5 ds470074 1 2 4 3 10 9 8 8 9 10 Figure 8. DC power supply and fan unit for DS4700 Express model 70 Table 6.
Table 6. DC power supply and fan unit description for DS4700 Express model 70 (continued) Number Description 3 DC power connector A21 4 DC power switch 5 DC power supply and fan unit B 6 DC power connector B12 7 DC power connector B22 8 Pin 1: -48 V dc 9 Pin 2: POS RTN 10 Pin 3: GND Notes: 1. The A1 and A2 dc connectors are keyed so that the dc cables are connected to the A1 and A2 connectors in only one way and in opposite orientation from each other.
Table 7. DC power supply and fan unit description for DS4700 Express model 72 (continued) Number Description 3 DC power connector A21 4 DC power switch 5 DC power supply and fan unit B 6 DC power connector B12 7 DC power connector B22 8 Pin 1: -48 V dc 9 Pin 2: POS RTN 10 Pin 3: GND Notes: 1. The A1 and A2 dc connectors are keyed so that the dc cables are connected to the A1 and A2 connectors in only one way and in opposite orientation from each other.
3 4 1 12 2 00 7 s4 d Figure 10. Battery unit Table 8. Description of Figure 10 Number Description 1 Controller A cache backup battery unit 2 Controller B cache backup battery unit 3 Latch 4 Pull handle The battery unit provides backup power to each controller's cache memory. Each battery unit contains a sealed, rechargeable lithium ion battery. The battery unit can maintain data in the cache for three days.
SFP modules The storage subsystem supports a fiber optic interface for host and storage expansion enclosure connections. You must install a Small Form-factor Pluggable (SFP) module in each interface connector on the controller where a fibre optic cable is to be installed. Do not install an SFP in any port that will not have a fibre optic cable attached. Additionally, it is recommended that you remove any SFP from any port that does not have fibre optic cables attached.
Figure 12 shows a front view of the bezel. Figure 13 shows a side view of the bezel, filter, and filter retainer. ds470065 Figure 12. Bezel 1 3 2 66 00 47 ds Figure 13. Filter and filter retainer Table 9.
Unless stated otherwise, you can find the latest DS4000 publications, firmware, and host software at the IBM DS4000 System Storage Support Web site: www.ibm.com/systems/support/storage/disk Software and firmware support code upgrades To enable support for the DS4700 Express, you must ensure that your system's software and firmware are the correct versions. To find the latest DS4000 Storage Manager software, storage subsystem controller firmware, ESM, and NVSRAM firmware, check the firmware readme files.
To obtain the controller firmware version: Right-click the Controller icon in the Physical View pane of the Subsystem Management window and select Properties. The Controller Enclosure properties window opens and displays the properties for that controller. You must perform this step for each individual controller. To obtain the drive firmware (and ATA translator card firmware) version: Right-click the Drive icon in the Physical View pane of the Subsystem Management window and select Properties.
44.70 cm (17.60 in.) 12.95 cm (5.1 in.) 57.15 cm (22.5 in.) 48.26 cm (19.00 in.) 3 7-0 02 77 Figure 14. DS4700 Express dimensions Weight The total weight of the storage subsystem depends on the number of components installed. Table 10 lists the maximum, empty, and shipping weights for the storage subsystem in different configurations. Table 11 lists the weight of each component. Table 10. DS4700 Express weights Weight 1 Unit Maximum DS4700 Express 40 kg (88 lb) Empty 2 Shipping 16.4 kg (36.
Environmental requirements and specifications This section describes the environmental requirements and specifications for the DS4700 Express Storage Subsystem, including temperature and humidity, altitude, airflow and heat dissipation, shock and vibration requirements, and acoustic noise levels. Temperature and humidity Table 13 lists the acceptable temperature and humidity ranges for the DS4700 Express Storage Subsystem when in storage or in transit.
Table 15. Temperature and humidity requirements for storage subsystem in a Telco/NEBS-3 compliant environment (continued) Condition 1 Relative humidity (no condensation) Parameter Requirement Operating range 5% to 85% Short-term 2 5% to 90% (not to exceed 0.024 kg water/kg of dry air) Notes: 1. In a Telco/NEBS-3 compliant environment, conditions are measured at a location 1.5 m (59 in.) above the floor and 400 mm (15.8 in.) in front of the equipment. 2.
These tabulated power and heat dissipation values are typical for the storage subsystem. Maximum configuration units are typically operated at higher data rates, have larger random access memory (RAM) capacities, or have different host interface boards. Table 17. DS4700 Express power and heat dissipation Parameter KVA Watts (ac) Btu per hour DS4700 Express 0.454 443 1516 Shock and vibration requirements Operational shock and operational vibration requirements are shown in this section.
v Circuit overloading – Power circuits and associated circuit breakers must provide sufficient power and overload protection. To prevent possible damage to the unit, isolate its power source from large switching loads (such as air conditioning motors, elevator motors, and factory loads). v Power failures – If a total power failure occurs, the unit automatically performs a power-up recovery sequence without operator intervention after power is restored. Table 20.
are appropriate for use in a typical outlet in the destination country. See Appendix C, “Power cords,” on page 199 for more information. Power and site wiring requirements for models with dc power supply and fan units The storage subsystem uses wide-ranging redundant power supplies that automatically accommodate voltages to the dc power source. The dc power supplies operate within the ranges specified in Table 21 on page 27.
back T42 racks front Air conditioner 1220 mm cold aisle width Perforated tiles or gratings Cold aisle front 2440 mm between center lines of hot and cold aisle T42 racks back Hot aisle back T42 racks front Airflow Figure 16. Example of cold aisle/hot aisle rack configuration Chapter 1.
30 IBM System Storage DS4700 Express Storage Subsystem: Installation, User’s and Maintenance Guide
Chapter 2. Installing the storage subsystem This chapter provides the information that you need to install the storage subsystem into a rack cabinet. Before you begin the installation, review the safety information in “Safety” on page xv. “Installation overview” provides an overview of the entire storage subsystem installation process. Read this overview before you begin the installation. Installation overview Statement 4: ≥ 18 kg (39.7 lb) ≥ 32 kg (70.5 lb) ≥ 55 kg (121.
5. Before removing the DS4700 Express from the shipping box, remove the components from the DS4700 Express chassis to lighten the unit. See “Removing the CRUs” on page 40. 6. Record the serial number, machine type and model number, and RAID controller MAC addresses for your DS4700 Express Storage Subsystem in Appendix A, “Records,” on page 191. The serial number, machine type, and model number are located on the left edge of the front unit as shown in Figure 17.
12. 13. 14. 15. 16. 17. Note: Perform this step if the attached storage expansion enclosures are EXP710s or EXP100s only. The EXP810 storage expansion enclosure IDs are automatically set by the controllers to be unique when they are cabled together. Perform one of the following cabling tasks to enable management of the DS4700 Express configuration: v If you are using out-of-band management, cable the DS4700 Express Ethernet ports to either the management workstation or the host.
Preparing for installation Before installing the DS4700 Express Storage Subsystem, create a detailed plan of how this unit will be used in your storage configuration. The plan should include determining RAID levels, fallover requirements, operating systems to be used, and total storage capacity requirements. Complete the following steps to prepare the DS4700 Express Storage Subsystem for installation into a rack cabinet: 1. Prepare the site to meet all area, environmental, power, and site requirements.
The kit includes a DS4000 Storage Manager Support CD that has the appropriate IBM DS4000 Storage Manager host software. If you order more than one host software kit, the additional kits may also be shipped in the DS4700 Express shipping box. The CD also includes the DS4000 Storage Subsystem controller firmware. For the latest controller firmware, check the IBM support Web site for DS4000 storage products: www.ibm.com/systems/support/storage/disk 5.
Preparing the rack cabinet Important: Before you install the storage subsystem in a rack cabinet, keep in mind the following considerations: v Review the documentation that comes with your rack enclosure for safety and cabling considerations. v Install the storage subsystem in a recommended 22° C (72° F) environment. See “Environmental requirements and specifications” on page 24 for details. v To ensure proper airflow, do not block the air vents; ensure at least 15 cm (6 in.) of air space.
3U 3U DS4700 Install second ---> Install first ---> Bezel (Front Left) FRONT Bezel (Front Right) Rack Mounting Template <--- Install first 2U 2U Install first ---> <--- Install first 1U 1U Rail assembly (Front Left) Rail assembly (Front Right) ds470001 Install second ---> 0U 0U Figure 18. Front rack mounting template Chapter 2.
3U 3U DS4700 REAR Rack Mounting Template 2U 2U Rail mounting guide 1U 1U Rail assembly (Rear Left) ® Printed in the U.S.A ds470002 Rail assembly (Rear right) 0U 0U Figure 19. Rear rack mounting template Before installing the DS4700 Express in a rack cabinet, you must install the rails and rack-mounting hardware that come with your storage subsystem. The DS4700 Express requires an Electronic Industries Association (EIA) 310-D Type A 19-inch rack cabinet.
4. The rack-mounted unit is three EIA units high. Decide accordingly where you are going to install the support rails. Attention: Use the rack mounting template provided in Figure 18 on page 37 and Figure 19 on page 38 to locate the proper rack mounting holes for installing the support rails into the rack.
1 3 4 5 2 6 Rear of Rack Figure 20. Installing the support rails 12. Continue with “Removing the CRUs.” Installing the DS4700 Express This section provides instructions on installing the DS4700 Express.
The DS4700 Express comes with a rack-mounting hardware kit for installing it in a rack. It is easier to lift the DS4700 Express and install it in a rack cabinet if you remove all the CRUs first. You will need an antistatic wrist strap and a cart or level surface (to hold the CRUs). Observe the precautions listed in “Handling static-sensitive devices” on page 33.
ds470010 Lever Figure 21. Removing and replacing a controller 3. Place the controller on a level surface. 4. Repeat step 1 through step 3 for the second controller. Removing an ac power supply and fan unit Statement 5: CAUTION: The power control button on the device and the power switch on the power supply do not turn off the electrical current supplied to the device. The device also might have more than one power cord.
11 00 47 Ds Lever Figure 22. Removing a power supply and fan unit 3. Place the power supply and fan unit on a level surface. 4. Repeat step 1 through step 3 for the second power supply and fan unit. Removing a dc power supply and fan unit CAUTION: This unit has more than one power source. To remove all power from the unit, all dc MAINS must be disconnected. Statement 29: Chapter 2.
CAUTION: This equipment is designed to permit the connection of the earthed conductor of the dc supply circuit to the earthing conductor at the equipment. This equipment is designed to permit the connection of the earthed conductor of the dc supply circuit to the earthing conductor at the equipment.
Note: The lever rotates upward or downward 90°, depending on whether the dc power supply and fan unit you are removing is in the left or right dc power supply and fan unit bay. 1 07 70 ds4 Figure 23. Removing a dc power supply and fan unit 3. Place the dc power supply and fan unit on a level surface. 4. Repeat step 1 on page 44 through step 3 for the second dc power supply. Removing an E-DDM Complete the following steps to remove a hot-swap E-DDM: Note: The E-DDM comes installed in a drive tray.
exp80018 Figure 24. Removing a E-DDM CRU 5. Place the E-DDM CRU horizontally on a level surface. Attention: Do not stack E-DDM CRUs on top of one another. Protect the E-DDM CRUs from vibrations or sudden shocks. 6. Repeat step 1 through step 4 on page 45 for additional E-DDM CRUs. Installing the DS4700 Express into a rack on the support rails Complete the following steps to install the DS4700 Express in the rack cabinet.
2. Using a #2 Phillips screwdriver, remove the four screws from the rails (two screws in each rail). See 4 in Figure 20 on page 40. If you do not remove these screws, the storage subsystem will not fit securely. Note: If the screws are shipped in the hardware pack instead of already installed in the rails, skip this step and go to step 3. 3. Place the storage subsystem in the rack.
Figure 26. Securing the DS4700 Express to the rack cabinet 5. Continue with one of the following actions: v If you did remove the DS4700 Express CRUs before installation (as described in “Removing the CRUs” on page 40), continue with “Replacing the components.” v If you did not remove the DS4700 Express CRUs before installation, continue with Chapter 3, “Cabling the storage subsystem,” on page 55.
Notch Guide pin Lever Figure 27. Removing and replacing a controller 2. As you slide the controller into the empty slot, make sure the guide pins on the side of the controller fit into the notches. After the guide pins fit into the notches and the controller fits snugly into the bay, push the lever downward or upward 90°, depending on whether the controller is inserted in the A or B controller bay to fully latch it into place. Do not force fit.
CAUTION: Disconnect the power cord before replacing the power supply and fan unit. Complete the following steps to replace the power supply and fan units that you removed before the installation: 1. Slide one power supply and fan unit into the storage subsystem. Be sure to replace the power supply and fan units so that the lever on each power supply and fan unit opens toward the interior of the storage subsystem, as shown in Figure 28. Do not force fit.
CAUTION: This equipment is designed to permit the connection of the earthed conductor of the dc supply circuit to the earthing conductor at the equipment. This equipment is designed to permit the connection of the earthed conductor of the dc supply circuit to the earthing conductor at the equipment.
Complete the following steps to replace the dc power supply and fan units that you removed before the installation: 1. Slide one dc power supply and fan unit into the storage subsystem. Be sure to replace the dc power supply and fan unit so that the lever on each dc power supply and fan unit opens toward the interior of the storage subsystem, as shown in Figure 29. Do not force fit. The dc power supply and fan unit is designed to prevent it from being inserted into the chassis incorrectly.
exp80018 Note: Use Table 55 on page 194 to verify the proper replacement locations of your E-DDMs. 1. Lift up on the handle and gently push the E-DDM CRU into the empty bay until the hinge of the tray handle latches beneath the storage subsystem bezel, as shown in Figure 30. Figure 30. Replacing an E-DDM 2. Push the tray handle down until the latch clicks into place. 3. Repeat step 1 and step 2 to replace additional E-DDMs.
Figure 31.
Chapter 3. Cabling the storage subsystem After the storage subsystem is installed in its permanent location, you must cable it to hosts, drives, and other external devices, depending on your hardware configuration.
1 1 1 ds470005 1 Figure 32. Storage subsystem seven-segment enclosure ID on models 70 and 72 Table 22. Description of Figure 32 Number Description 1 Enclosure ID Fibre-channel loop and ID settings When you install a hard disk drive in the storage subsystem, the drive tray plugs into a printed circuit board called the midplane. The midplane sets the fibre-channel loop ID automatically, based on the enclosure ID switch setting and the physical location (bay) of the hard disk drive.
CAUTION: When laser products (such as CD-ROMs, DVD drives, fiber optic devices, or transmitters) are installed, note the following: v Do not remove the covers. Removing the covers of the laser product could result in exposure to hazardous laser radiation. There are no serviceable parts inside the device. v Use of controls or adjustments or performance of procedures other than those specified herein might result in hazardous radiation exposure.
ds470104 1.5 inch (38 mm) radius 3.0 inch (76 mm) diameter Figure 33. Recommended bending and looping specifications for fibre-optic cables Installing SFP modules The DS4700 Express requires SFP modules. SFP modules convert electrical signals to optical signals that are required for fibre channel transmission to and from RAID controllers. After you install the SFP modules, you use fibre-optic cables to connect the DS4700 Express to other fibre channel devices.
v You must remove the fiber-optic cable from the SFP module before you remove the SFP module from the port. Refer to “Removing SFP modules” on page 60 for more information. v The maximum operating speed of the fibre channel port is determined by two factors: the speed of the SFP module that is installed and the speed of the fibre channel connection. For example, a 2-Gbps SFP that is plugged into a 4-Gbps-capable port will limit the speed of that port to a maximum of 2 Gbps.
Plastic tab Protective cap SFP module Figure 34. SFP module and protective cap 3. Remove the protective cap from the SFP port. Save the protective cap for future use. 4. Insert the SFP module into the host port until it clicks into place. See Figure 35. Plastic tab Protective cap SFP module Figure 35. Installing an SFP module into the host port 5. Connect an LC-LC fibre-channel cable. For information about the LC-LC cable, see “Using LC-LC fibre-channel cables” on page 61.
Plastic tab Protective cap 10 o SFP module Figure 36. Unlocking the SFP module latch - plastic variety v For SFP modules that contain wire tabs, unlock the SFP module latch by pulling the wire latch outward 90°, as shown in Figure 37. Wire tab Protective cap o 90 SFP module Figure 37. Unlocking the SFP module latch - wire variety 3. With the SFP latch in the unlocked position, extract the SFP module. v For SFP modules that contain plastic tabs, slide the SFP module out of the port.
Figure 38. LC-LC fibre-channel cable Connecting an LC-LC cable to an SFP module Complete the following steps to connect an LC-LC fibre-channel cable to an SFP module: Statement 3: CAUTION: When laser products (such as CD-ROMs, DVD drives, fiber optic devices, or transmitters) are installed, note the following: v Do not remove the covers. Removing the covers of the laser product could result in exposure to hazardous laser radiation. There are no serviceable parts inside the device.
Fibre-optic cable Protective cap Figure 39. Removing fiber-optic cable protective caps 4. Carefully insert this end of the LC-LC cable into an SFP module that is installed in the DS4700 Express. The cable connector is keyed to ensure it is inserted into the SFP module correctly. Holding the connector, push in the cable until it clicks into place, as shown in Figure 40. Figure 40. Inserting an LC-LC fibre-channel cable into an SFP module 5.
Removing an LC-LC fibre-channel cable Complete the following steps to remove an LC-LC fibre-channel cable: Attention: To avoid damaging the LC-LC cable or SFP module, make sure that you observe the following precautions: v Press and hold the lever to release the latches before you remove the cable from the SFP module. v Ensure that the levers are in the released position when you remove the cable. v Do not grasp the SFP module plastic tab when you remove the cable. 1.
For more information about connecting to these devices, see the documentation that comes with the LC-SC fibre-channel cable adapter. LC connector f10ug012 SC connector Figure 43. LC-SC fibre-channel cable adapter The following sections provide the procedures for properly connecting and removing an LC-SC fibre-channel cable.
2. Connect one end of an LC-LC cable to an SFP module in the DS4700 Express. For instructions, see “Using LC-LC fibre-channel cables” on page 61. 3. Remove the two protective caps from the LC connector end of the LC-SC cable adapter as shown in Figure 44. Save the protective caps for future use. f10ug013 Figure 44. Removing the LC-SC cable adapter protective caps 4. Carefully insert the other end of the LC-LC cable into the LC connector end of the LC-SC cable adapter as shown in Figure 45.
Attention: To avoid damaging the LC-LC cable, make sure you press and hold the lever to release the latches before you remove the cable from an LC-SC cable adapter. Ensure that both levers are in the released position when removing the cable. When removing the cable from the SFP module, make sure you do not grasp the SFP module plastic tab. 1. On the end of the cable that connects into the LC connector end of the LC-SC cable adapter, press down and hold the lever to release the latches.
Connecting storage expansion enclosures to the DS4700 Express Attention Before powering on the DS4700 Express Storage Subsystem, it must be populated with at least two E-DDMs.
Left ESM Right ESM Left ESM Right ESM Left ESM Right ESM Drive Channel 1, port 2 Redundant Drive Channel pair Drive Channel 1, port 1 Drive Channel 2, port 1 DS4700 Drive Channel 2, port 2 Right ESM Left ESM Right ESM Left ESM Right ESM ds470017 Left ESM Figure 48.
1. Follow the instructions in the Installation, User's, and Maintenance Guide for your DS4000 storage expansion enclosure to set up and mount the storage expansion enclosures. 2. Select a cabling topology appropriate for the number of storage expansion enclosures you will connect to the DS4700 Express. If you are connecting external storage expansion enclosures to the DS4700 Express, ensure that the storage expansion enclosures are populated with at least two drives before you power them on.
Figure 49 and Figure 50 show the locations of controllers A and B, the single-ported fibre-channel host channels, Ethernet ports, and dual-ported fibre-channel drive channels at the back of the DS4700 Express Storage Subsystem. 5 6 ds470013 3 4 1 2 6 5 4 3 Figure 49. DS4700 Express Storage Subsystem (Model 70) ports and controllers Table 23 provides a list of the drive channels that are associated with each of the controllers on the DS4700 Express Storage Subsystem (model 70). Table 23.
Table 24.
redundant drive channel pair. 2 1 Controller A 1 2 Controller B Left ESM Right ESM Left ESM Right ESM ds470044 Figure 52. One DS4700 Express and two storage expansion enclosure — Not recommended cabling As Figure 53 shows, when you connect additional storage expansion enclosures, you can connect them by using the additional port of the drive channel. 2 1 Controller A 1 2 Controller B Left ESM Right ESM Left ESM Right ESM ds470045 Figure 53.
One DS4700 Express and three storage expansion enclosures If you are cabling one DS4700 Express Storage Subsystem and three storage expansion enclosures, Figure 54 shows the recommended cabling topology. 2 1 Controller A 1 2 Controller B Left ESM Left ESM Right ESM Right ESM ds470049 Left ESM Right ESM Figure 54.
2 1 Controller A 1 2 Controller B Left ESM Right ESM Left ESM Right ESM Left ESM Right ESM Left ESM Right ESM ds470051 Left ESM Right ESM Left ESM Right ESM ds470051 Figure 56. One DS4700 Express and up to six storage expansion enclosure — Recommended cabling Figure 57 on page 76 shows a cabling topology that is not recommended because all six storage expansion enclosures are connected to a single drive port of the dual-ported drive channel in each controller. Chapter 3.
2 1 Controller A 1 2 Controller B Left ESM Right ESM Left ESM Right ESM Left ESM Right ESM Left ESM Right ESM Left ESM Right ESM ds470051 Left ESM Right ESM ds470058 Figure 57. One DS4700 Express and up to six storage expansion enclosure — Not recommended One DS4700 Express and two or more storage expansion enclosures in a mixed configuration A mixed configuration is a configuration in which you have more than one type of storage expansion enclosure.
2 1 Controller A 1 2 Controller B 1 2 Left ESM Right ESM Left ESM Right ESM Left ESM Right ESM Left ESM Right ESM Left ESM Right ESM Left ESM Right ESM ds470046 Figure 58.
DS4700 Express Storage Subsystem drive cabling rules and recommendations Refer to these general rules and recommendations when completing the cabling steps in the cabling schemes described in this section. 1. Do not connect a combination of more than six EXP810 storage expansion enclosures to the two ports of a dual-ported drive channel. Failure to observe this limitation might result in loss of data availability.
DS4000 storage subsystem. Figure 59 shows the location of the ports. 3 4 ESM A 6 ESM B EXP810 4 3 5 4 Port 1B 3 Port 1A ESM A 2 ESM B EXP810 3 4 7 DS4700 1 ds470098 7 Figure 59. DS4700 Express drive ports connected to EXP810 ESM ports labeled 1B Table 25.
storage expansion enclosure's ESM ports. 3 4 4 3 Left ESM 3 4 Right ESM Left ESM Right ESM 4 3 6 6 EXP710 EXP100 5 4 3 5 3 4 3 4 Left ESM Left ESM 4 3 Right ESM Right ESM 2 2 EXP100 EXP710 7 7 DS4700 DS4700 1 1 7 7 ds470100 Figure 60. DS4700 Express drive ports connected to 14-drive storage expansion enclosure ESM In and Out ports Table 26.
DS4700 2 1 EXP100 ds470034 Figure 61. One DS4700 Express and one EXP100 storage expansion enclosure — Recommended cabling Perform the following steps to create the recommended cabling scheme as shown in Figure 61: 1. Connect either port 2 or port 1 of the dual-ported drive channel 1 in controller A of the DS4700 Express to the IN port ( 1 ) on the left ESM of the EXP100. 2.
4. Connect the OUT port ( 2 ) on the right ESM in the second EXP100 ( 4 ) to port 2 of drive channel 2 on the DS4700 Express. One DS4700 Express and three or more EXP100 storage expansion enclosures To connect three or more storage expansion enclosures to a DS4700 Express Storage Subsystem, alternately connect a storage expansion enclosure to one of the drive ports of the dual-ported drive channel then connect to the other port until all of the storage expansion enclosures are attached.
DS4700 1 2 1 2 4 3 1 2 1 2 6 5 ds470053 Figure 64. One DS4700 Express and four EXP100 storage expansion enclosures behind a pair of DS4700 drive ports Perform the following steps to create the recommended cabling scheme shown in Figure 64: 1. Connect the OUT port ( 2 ) on the left ESM in the first EXP100 ( 3 ) to the IN port ( 1 ) on the left ESM in the third EXP100 ( 5 ). 2.
DS4700 1 2 1 2 4 3 1 2 1 2 6 5 1 2 1 2 7 8 ds470054 Figure 65. One DS4700 Express and a maximum of six EXP100 storage expansion enclosures behind a pair of DS4700 drive ports Perform the following steps to create the recommended cabling scheme shown in Figure 65: 1. Connect the OUT port ( 2 ) on the left ESM in the first EXP100 ( 3 ) to the IN port ( 1 ) on the left ESM in the third EXP100 ( 5 ). 2.
One DS4700 Express and one EXP710 storage expansion enclosure Figure 66 shows the recommended cabling scheme for one DS4700 Express Storage Subsystem and one EXP710 storage expansion enclosure. DS4700 2 1 EXP100 ds470034 Figure 66. One DS4700 Express and one EXP710 storage expansion enclosure — Recommended cabling Perform the following steps to create the recommended cabling scheme as shown in Figure 66: 1.
2. Connect the OUT port ( 2 ) on the right ESM in the first EXP710 ( 3 ) to port 1 of drive channel 1 on the DS4700 Express. 3. Connect port 1 of drive channel 1 on the DS4700 Express to the IN port ( 1 ) on the left ESM in the second EXP710 ( 4 ). 4. Connect the OUT port ( 2 ) on the right ESM in the second EXP710 ( 4 ) to port 2 of drive channel 2 on the DS4700 Express.
DS4700 1 2 1 2 4 3 1 2 1 2 6 5 ds470053 Figure 69. One DS4700 Express and four EXP710 storage expansion enclosures behind a pair of DS4700 drive ports Perform the following steps to create the recommended cabling scheme shown in Figure 69: 1. Connect the OUT port ( 2 ) on the left ESM in the first EXP710 ( 3 ) to the IN port ( 1 ) on the left ESM in the third EXP710 ( 5 ). 2.
DS4700 1 2 1 2 4 3 1 2 1 2 6 5 1 2 1 2 7 8 ds470054 Figure 70. One DS4700 Express and a maximum of six EXP710 storage expansion enclosures behind a pair of DS4700 drive ports Perform the following steps to create the recommended cabling scheme shown in Figure 70: 1. Connect the OUT port ( 2 ) on the left ESM in the first EXP710 ( 3 ) to the IN port ( 1 ) on the left ESM in the third EXP710 ( 5 ). 2.
One DS4700 Express and one EXP810 storage expansion enclosure Figure 71 shows the recommended cabling scheme for one DS4700 Express Storage Subsystem and one EXP810 storage expansion enclosure. DS4000 Storage Subsystem 1 Storage Expansion Enclosure 1 ds470033 Figure 71. One DS4700 Express and one EXP810 storage expansion enclosure — Recommended cabling Perform the following steps to create the recommended cabling scheme shown in Figure 71: 1.
1 1 2 3 1 1 ds470038 Figure 72. One DS4700 Express and two EXP810 storage expansion enclosures behind a pair of DS4700 drive ports Perform the following steps to create the recommended cabling scheme shown in Figure 72: 1. Connect port 2 of drive channel 1 on the DS4700 Express to port 1B ( 1 ) on the left ESM in the first EXP810 ( 2 ). 2. Connect port 1B ( 1 ) on the right ESM in the first EXP810 ( 2 ) to port 1 of drive channel 2 on the DS4700 Express. 3.
1 1 2 3 1 1 ds470055 1 4 1 Figure 73. One DS4700 Express and three EXP810 storage expansion enclosures behind a pair of DS4700 drive ports Perform the following steps to create the recommended cabling scheme shown in Figure 73: 1. Connect port 1A on the left ESM in the first EXP810 ( 2 ) to port 1B ( 1 ) on the left ESM in the third EXP810 ( 4 ). 2. Connect port 1A on the right ESM in the third EXP810 ( 4 ) to port 1B ( 1 ) on the right ESM in the first EXP810 ( 2 ). 3.
1 1 2 3 1 1 1 1 4 5 1 1 ds470056 Figure 74. One DS4700 Express and four EXP810 storage expansion enclosures behind a pair of DS4700 drive ports Perform the following steps to create the recommended cabling scheme shown in Figure 74: 1. Connect port 1A on the left ESM in the first EXP810 ( 2 ) to port 1B ( 1 ) on the left ESM in the third EXP810 ( 4 ). 2. Connect port 1A on the right ESM in the third EXP810 ( 4 ) to port 1B ( 1 ) on the right ESM in the first EXP810 ( 2 ). 3.
1 1 2 3 1 1 1 1 4 5 1 1 1 1 7 6 1 1 ds470057 Figure 75. One DS4700 Express and a maximum of six EXP810 storage expansion enclosures behind a pair of DS4700 drive ports Perform the following steps to create the recommended cabling scheme shown in Figure 75: 1. Connect port 1A on the left ESM in the first EXP810 ( 2 ) to port 1B ( 1 ) on the left ESM in the third EXP810 ( 4 ). 2.
12. Connect port 2 of drive channel 2 on the DS4700 Express to port 1B ( 1 ) on the right ESM in the sixth EXP810 ( 7 ). One DS4700 Express and two or more storage expansion enclosures in a mixed configuration When you cable the DS4700 Express Storage Subsystem to storage expansion enclosures that are in a mixed configuration, it is recommended that you cable the same type of enclosures together.
DS4000 Storage Subsystem DS4000 Storage Subsystem 1 4 5 1 4 ESM A 5 ESM B ESM A 6 7 ESM B EXP100 EXP810 Out 2 4 5 4 ESM A 7 6 7 6 3 5 ESM B 6 ESM A 7 ESM B EXP100 ESM A EXP810 6 7 4 5 4 ESM A ESM B 5 ESM B EXP810 7 6 EXP100 3 2 ESM A 6 7 4 EXP810 7 5 ESM A ESM B 6 4 5 ESM B EXP100 exp100810a Figure 76. Acceptable EXP710, EXP810 and EXP100 intermix configuration in a DS4700 Express Storage Subsystem environment Table 27.
DS4000 Storage Subsystem 1 5 4 4 ESM A 5 ESM B EXP100 2 5 4 4 ESM A 5 ESM B EXP100 6 ESM A 7 ESM B EXP810 7 6 3 6 ESM A 7 ESM B EXP810 7 6 exp100810u Figure 77. Unacceptable EXP710, EXP810 and EXP100 intermix configuration in a DS4700 Express Storage Subsystem environment Table 28.
Subsystem. 1 DS4700 Express EXP710 EXP100 EXP100 EXP100 2 2 4 2 EXP710 EXP100 EXP100 2 EXP810 3 EXP100 EXP710 EXP810 2 EXP810 3 4 EXP100 EXP710 EXP710 4 EXP810 ds470102 Figure 78. Cabling variations when intermixing EXP100, EXP710, and EXP810 storage expansion enclosures behind a DS4700 Express Storage Subsystem Table 29.
If required, use a small screwdriver or the tip of a pen to push the small buttons above and below each enclosure ID digit to change the enclosure ID setting. Press the button located above the digit to lower the digit by one. Press the button located below the digit to raise the digit by one. Note: Some DS4000 storage expansion enclosures ship with a panel installed over the enclosure ID switch to prevent the enclosure ID from being changed accidentally.
The problem with soft AL_PAs addressing is that addresses may change between LIPs. This possibility increases the difficulty of troubleshooting drive channel problems, since one cannot easily ascertain whether the same device with a different address or different device may be causing a problem. IBM recommends always setting the enclosure IDs in a given drive channel/loop pair to enforce hard AL_PAs addressing.
Connecting secondary interface cables This section is applicable to (direct) out-of-band management configurations only. If your configuration uses host-agent (in-band) management, skip this section. Use the Ethernet interface ports on the back of the storage subsystem to connect the controllers for direct management of the storage subsystems (see “Direct (out-of-band) management method” on page 102). Important: 1.
Table 32. DS4700 Express Storage Subsystem (Model 72) location of host ports on controllers Number Description 1 Ethernet ports Note: Ethernet ports on the left controller are labeled 2 and 1. On the right controller, they are labeled 1 and 2. 2 Serial port 1 ds470026 2 1 2 Figure 80. Ethernet and serial port locations on DS4700 Express model 72 Table 33.
Then, the server will be able to recognize the storage subsystem correctly for host-agent (in-band) management. Host-agent (in-band) management method This method requires host-agent software that you install on the host server. The host-agent software allows the DS4000 Storage Manager client program to manage the DS4000 Storage Subsystem using the same fibre channel connections between the host server and the storage subsystem. You must install at least one management station and a software agent host.
You can either use the default controller Ethernet IP addresses for out-of-band connection or change the default controller Ethernet IP addresses by using Dynamic Host Configuration Protocol (DHCP) or Storage Manager client. Refer to the DS4000 Storage Manager Installation, User's and Maintenance Guide for the appropriate operating system for more information on setting the management connections and installing the DS4000 storage subsystem management software.
Table 35. Description of Figure 62 Number Description 1 Two storage subsystems 2 Fibre channel I/O path 3 Host server 4 Ethernet network 5 Management station Figure 82. Direct (out-of-band) managed storage subsystems Connecting hosts to the DS4700 Express The DS4700 Express supports redundant direct attached connections to up to four hosts (models 72A and 72H).
Note: The alignment of the single-ported host channels on controller A are opposite those of controller B. Before inserting an SFP module into a host port, verify that the SFP module is rotated correctly to match the alignment of the host port on the RAID controller. Do not force-fit. 2. Connect the fibre channel cables from the SFP modules in the DS4700 Express RAID controller host ports to either the SFP modules in the fibre channel switch or the SFP modules of the host bus adapters.
page 106, or a maximum of four redundant host connections for the DS4700 Express Storage Subsystem model 72, as shown in Figure 86 on page 107. Note: Figure 86 on page 107 shows a connection to a fibre channel host bus adapter in the DS4700 Express Storage Subsystem. You can also connect to fibre channel switch ports (not shown). Host 1, Host Adapter 1 and 2 2 1 ds470023 1 2 Host 2, Host Adapter 1 and 2 Figure 85.
Host 1, Host Adapter 1 and 2 Host 4, Host Adapter 1 and 2 4 3 2 1 ds470024 1 2 3 4 Host 2, Host Adapter 1 and 2 Host 3, Host Adapter 1 and 2 Figure 86. Cabling diagram for four redundant host connections For examples of redundant, partially-redundant, and non-redundant host and drive loop configurations, see “Fibre channel host loop configurations.
Note: The minimum DS4700 Express configuration is two partitions. The maximum is 128 partitions. Configuration upgrades are available as upgrade options. Contact your IBM reseller or marketing representative for more information. Redundant host and drive loops This section provides examples of DS4700 Express host fibre channel configurations.
Host system with two host adapters Host system with two host adapters Switch Switch Interswitch link ds470028 DS4700 Figure 88. Example of a single SAN fabric configuration In Figure 89, the fibre channel switches are connected together via the inter-switch link (ISL) to form a dual SAN fabric. Host system with two host adapters Host system with two host adapters Note: Node level redundancy with cluster software. Switch Switch ds470029 DS4700 Figure 89.
Host system with two host adapters Host system with two host adapters Switch Switch ds470030 DS4700 DS4700 Figure 90. Example of two storage subsystems in a dual SAN environment Figure 91 shows an example of a two-cluster configuration. Cluster 1 Cluster 2 Host system with two host adapters Host system with two host adapters Host system with two host adapters Host system with two host adapters Switch Switch Switch Switch ds470031 DS4700 Figure 91.
Attach fiber-optic interface cables to each host adapter. You will connect the other end of the cables to the controller later in the installation process. For more information about handling fiber-optic cables, see “Handling fibre-optic cables” on page 57. Cabling the ac power supply for ac models Complete the following steps to connect the ac power supply cable: 1. Using the supplied strap, tie the power supply cord to the rail to provide strain relief for the power cord. 2.
CAUTION: To reduce the risk of electric shock or energy hazards: v This equipment must be installed by trained service personnel in a restricted-access location, as defined by the NEC and IEC 60950-1, First Edition, The Standard for Safety of Information Technology Equipment. v Connect the equipment to a reliably grounded safety extra low voltage (SELV) source.
2 1 3 6 5 6 5 4 6 5 4 ds470094 Figure 92. DC power supply and fan unit cabling scheme - single-level redundancy Dual-level redundant dc cabling In a dual-level redundancy dc cabling scheme, both dc power connectors in each of the dc power supply and fan units are connected to a dc power source. You will need two additional dc power cables (IBM Option P/N 42D3329) to cable in this way.
2 1 8 3 6 5 7 8 6 5 4 7 8 6 5 4 7 ds470093 Figure 93. DC power supply and fan unit cabling scheme - dual-level redundancy 1 2 3 ds470095 Complete the following steps to connect the dc power supply cable: 1. Using the supplied strap, tie the power supply cord to the rail to provide strain relief for the power cord. 2. Connect the dc power cable to the power supply. See Figure 94 for the dc power supply connector PIN positions. Figure 94. DC power supply connector - PIN positions Table 38.
ds470097 4. Complete the wiring from the disconnect device to the terminal marked -48V of the Reliably grounded safety extra low voltage (SELV) dc power source. Connect the POS RTN and ground lines of the dc power cable to the terminals marked POS RTN and GND on the dc power source, as shown in Figure 95. For maximum protection against power loss, connect each of the two dc power supplies to a different power source. 5 1 2 3 4 Figure 95.
116 IBM System Storage DS4700 Express Storage Subsystem: Installation, User’s and Maintenance Guide
Chapter 4. Operating the storage subsystem This chapter describes operating procedures for the DS4700 Express. To ensure optimal operation of your system, see “Best practices guidelines” on page 5 Performing the DS4000 Health Check process The DS4000 Health Check process is a sequence of suggested actions developed by IBM to help users verify and maintain the optimal performance of their DS4000 storage configurations.
Save the storage subsystem profile before performing any controller or ESM firmware upgrades. Save the storage subsystem profile and all *.cfg files to a server disk that will remain accessible in the event of a DS4000 storage configuration failure. Note: When you upgrade firmware, you must upgrade all client package components to the same release level. For example, if you are upgrading your controller firmware from version 6.x to version 7.
v Create and maintain a cabling diagram of the current SAN configuration. Keep this diagram updated as you make configuration changes, and keep the cabling diagram available for review. v Create and maintain a list of other components that are being used within the cabling diagram (such as the host system, fibre channel switches, and other SAN attachments). v Ensure that all ESMs are properly seated. v Ensure that all drives are properly seated. v Ensure that all SFP modules are properly seated.
v Yes - Turn off both power switches on each enclosure that you intend to connect to the power. v No - Turn off both power switches on all enclosures in the storage subsystem. For dc power supply and fan units only, turn off the disconnect devices for all of the dc power supply and fan units. 2. Ensure that all power cords are connected. See “Cabling the ac power supply for ac models” on page 111 or “Cabling the dc power supply for dc models” on page 111 for details, depending on your model.
8. Determine the status of all storage subsystems and components in the configuration by completing the following steps: a. Check all LEDs on each component in the storage expansion enclosures. Ensure that all the LEDs show normal status. For more information on LED status for storage expansion enclosures, see “Checking the LEDs” on page 125 or the Installation, User’s, and Maintenance Guide for your DS4000 storage expansion enclosure. b. Check all LEDs on each component in the storage subsystem.
v Appropriate host kit for your operating system, which includes the DS4000 Storage Manager Support CD containing the appropriate Storage Manager version and storage subsystem controller firmware. Depending on the DS4700 Express model you order, your DS4700 Express will ship with either the Microsoft Windows host software attachment kit or with your choice of host software kits (Windows, AIX, Linux, Netware, SUN Solaris, HP-UX, Linux on POWER, or VMware).
In addition, to download the latest version of the DS4000 Storage Manager host software, the DS4700 Express Storage Subsystem controller firmware and NVSRAM, and the latest DS4000 ESM firmware, go to the following Web site: www.ibm.com/systems/support/storage/disk The DS4000 Storage Manager client provides the best way to diagnose and repair storage-server failures.
7. Select the Drives tab. 8. Scroll through the list to find the drive values such as Product ID. Firmware updates Attention: Save the storage subsystem profile before performing any controller or ESM firmware upgrades. Save the DS4700 Express storage subsystem profile and all configuration (*.cfg) files to a server disk that will remain accessible in the event of a DS4000 storage configuration failure. Do not save these files only to a LUN in the DS4000 Storage Subsystem.
1. Open the Subsystem Management window. 2. Select the component button for each storage expansion enclosure in this storage subsystem, and view the status of each of the components. The status for each component is either Optimal or Needs Attention. 3. Does any component have a Needs Attention status? v Yes - Go to step 4. v No - All components are Optimal. Go to step 6. 4. Select the Recovery Guru toolbar button. Perform the procedure in the Recovery Guru to correct the problem.
AC power supply and fan unit LEDs This section describes the primary power supply and fan unit LEDs on the DS4700 Express Storage Subsystem (models 70A, 70H, 72A, and 72H). 4 3 2 1 ds470007 1 2 3 4 Figure 96. Power supply and fan unit LEDs Table 40.
4 3 2 1 ds470086 1 2 3 4 Figure 97. DC power supply and fan unit LEDs Table 41. DC power supply and fan unit LEDs Number LED Normal Status Problem Status DC power supply and fan unit power On Off 2 Service Action Allowed (OK to Remove) Off On2 3 Service Action Required (Fault) Off On2 41 Direct Current Enabled On Off 1 1 Notes: 1. Although the symbols for dc power supply and fan unit power and Direct Current Enabled LEDs are the same, the LEDs serve different purposes.
ds470103 1 2 3 4 5 6 Figure 98. Front LEDs and controls Table 42.
3 2 1 ds470008 1 2 3 Figure 99. Battery unit LEDs Table 43. Battery unit LEDs Number LED Normal Status Problem Status 1 Service Action Allowed (OK to Remove) Off On 2 Service Action Required (Fault) Off On 3 Battery Charging Green means on, ready Off Blinking green means charging The Global Power, Global Summary Fault, and Global Locate LEDs are general indicators for the entire DS4700 Express Storage Subsystem (or configuration, in the case of the Global Summary Fault).
4 13 12 11 10 7 6 7 6 5 1 2 3 ds470061 9 8 9 8 8 9 8 9 5 6 7 6 7 4 3 2 1 10 11 12 13 Figure 100. Rear controller LEDs, controls, and connectors - Model 70 4 13 12 11 10 5 1 2 3 9 8 9 8 6 ds470062 7 6 7 8 9 8 9 5 4 3 2 1 10 11 12 13 Figure 101. Rear controller LEDs, controls, and connectors - Model 72 Table 44.
Table 44. Rear controller LEDs, controls, and connectors (continued) Number LED Normal Status Problem Status 3 Cache Active On - Data is in cache Not applicable Off - Caching is turned off. No data in cache 4 Diagnostic On - Seven-segment LEDs indicate diagnostic code Not applicable Off - Seven-segment LEDs indicate enclosure ID 5 Heartbeat Blinking 6 Host Channel Speed - L1 See Table 45 on page 132. 7 Host Channel Speed - L2 See Table 45 on page 132.
Table 45. Host and drive channel LED definitions L1 L2 Definition Off Off When both LEDs for a host or drive channel are off, this indicates one or more of the following conditions: v The host or drive channel ports are bad or the SFPs are faulty. v An SFP module is inserted with no fibre channel cable attached. Note: If the SFP is inserted in a drive port with no fibre channel attached, the associated drive port bypassed LED will also be lit. In addition, the L1 and L2 LEDs will be unlit.
display numbers. The diagnostic LED tuns off when the numeric display shows the storage subsystem enclosure ID. The numeric display shows various diagnostic codes as the enclosures perform the startup process after each power cycle or reset. After diagnostics are complete, the current storage subsystem enclosure ID is displayed. Diagnostic codes in the form of Lx or Hx, where x is a hexadecimal digit, indicate storage subsystem state information.
v Instructions in a hardware or software procedure require that you turn off the power. v An IBM technical support representative instructs you to turn off the power. v A power outage or emergency situation occurs, see “Restoring power after an unexpected shutdown” on page 137. Turning off the storage subsystem Use the following procedure to turn off the power for the DS4700 Express. Attention: Except in an emergency, never turn off the power if any Needs Attention LEDs are on.
Attention: Turning off and turning on power without waiting for the storage subsystem disk drives to spin down can damage the drives and might cause data loss. Always let at least 70 seconds elapse from when you turn off the power until you turn on the power again. Power-off overview Review the following information before you continue with the power-off procedure below. Turn off the power to each device based on the following shutdown sequence: 1. Turn off power to the host before the storage subsystem.
5. To diagnose and correct the fault, complete the following steps: a. Run the Recovery Guru by selecting the Recovery Guru toolbar button in the Subsystem Management window. b. Complete the recovery procedure. If the Recovery Guru directs you to replace a failed component, use the individual LEDs to locate the failed component. c. When the recovery procedure is completed, select Recheck in the Recovery Guru. This action reruns the Recovery Guru to ensure that the problem has been fixed. d.
1. If you have time, stop all I/O activity to the storage subsystem by shutting down the host or disconnecting the storage subsystem logical drives through the host. 2. Check the LEDs. Make note of any Needs Attention LEDs that are on so you can correct the problem when you turn on the power again. 3. Turn off all power supply switches, starting with the DS4700 Express storage subsystem first, and followed by the storage expansion enclosures. Then, unplug the power cables from the storage subsystem.
the appropriate DS4000 Storage Subsystem Installation, User's, and Maintenance Guide during any attended power-up procedure. v A storage subsystem in an optimal state should recover automatically from an unexpected shutdown and unattended simultaneous restoration of power to system components.
If the module temperature exceeds 45° C (113° F), the storage management software displays a Needs Attention icon in the Subsystem Management window. If event monitoring is enabled, and event notification is configured, the software issues the following two critical problem notifications: v If one power supply shuts down, the storage management software displays a Needs Attention status in the Subsystem Management window.
9. 10. 11. 12. CAUTION: The power switch on the power supply and fan unit does not turn off the electrical current supplied to the device. The DS4700 Express Storage Subsystem might also have more than one connection to dc power. To remove all electrical current from the device, ensure that all dc power cords are disconnected from the power supply and fan unit dc input connectors. While the storage expansion enclosure powers up, the LEDs on the front and the back of the module blink intermittently.
Attention: There are different replacement FRU part numbers for the DS4700 Express controller with certain cache sizes. The DS4700 Express Storage Subsystem profile has the information on the installed cache memory size in the DS4700 Express controllers. Refer to the storage subsystem profile and see “Parts listing” on page 188 for the correct FRU part number for the DS4700 Express controller.
Subsystem cache battery The battery unit in each controller provides backup power to maintain any cached data not written to disks in the event of a power loss. The battery units can provide power to the data caches in the RAID controllers for up to three days. Statement 2: CAUTION: When replacing the lithium battery, use only an equivalent type battery recommended by the manufacturer.
Data caching starts after the battery completes the startup tests. Attention: Write caching is suspended while a battery pack is either charging or self-testing. Figure 104 shows the location of the Battery LEDs. 3 2 1 ds470008 1 2 3 Figure 104. Battery unit LEDs Table 48.
144 IBM System Storage DS4700 Express Storage Subsystem: Installation, User’s and Maintenance Guide
Chapter 5. Replacing components This chapter contains information about replacing a controller, bezel, filter and filter retainer, E-DDM CRU, power supply and fan unit CRU, dc power supply and fan unit CRU, battery unit, SFP module, and midplane. Attention: Always replace a failed component as soon as possible. The Recovery Guru menu function in the DS4700 Express Storage Subsystem identifies failed components.
Attention Never remove a controller, power supply and fan unit, or battery unit unless the Service Action Allowed status LED is turned on. Doing so can result in a potential loss of data availability. If the Needs Attention LED is lit and the associated Service Action Allowed status LED is not lit, then you must perform additional diagnostics before you can remove the indicated component.
v Yes – Go to step 4. v No – Another component might require attention before you can remove the controller. Use the Recovery Guru function in the DS4700 Express Subsystem Management window to identify and correct any additional failures. If there are none, proceed with step 4 to replace the controller. Electrostatic discharge can damage sensitive components. Touching the storage subsystem or its components without using a proper ground might damage the equipment.
Wire tab Protective cap o 90 F10ug010 SFP module Figure 106. Unlocking the SFP module latch - wire variety c. With the SFP latch in the unlocked position, extract the SFP module. v For SFP modules that contain plastic tabs, slide the SFP module out of the port. v For SFP modules that contain wire tabs, grasp the wire latch and pull the SFP module out of the minihub port. d. Replace the protective cap on the SFP module. e. Place the SFP module into a static-protective package. f.
a. Slide one controller into the empty slot in the storage subsystem. Be sure that the lever is pulled straight out as you slide the controller in, as shown in Figure 108. Notch Guide pin Lever Figure 108. Installing a controller b. As you slide the controller into the empty slot, make sure the guide pins on the side of the controller fit into the notches.
v If the new controller is offline, go to step 17. 17. If the newly inserted controller is in an offline state, see the DS4000 Storage Manager client online help for instructions on bringing the controller online. If necessary, open the DS4000 Storage Manager Subsystem Management window and place the controller on-line; select the off-line controller and click Advanced Recovery Place controller online. 18. Verify the state of the LEDs on the newly inserted controller. See “Controller LEDs” on page 129.
Replacing a filter and filter retainer Note: Inspect the filter as needed. Replace the filter every three months or sooner, depending on your environment. Complete the following steps to replace a filter and filter retainer: 1. Remove the bezel by grasping the sides of the bezel and pulling it slowly toward you, as shown in Figure 109 on page 150. 2. Place the bezel face down on a level surface. 3. Remove the filter retainer and filter from the bezel by pressing the blue tabs toward the edge of the bezel.
– For optimum performance, never insert a E-DDM into a storage subsystem without first confirming the drive firmware level. In the event of a drive firmware mismatch, schedule down time as soon as possible to upgrade the drive firmware to the same version. For information about supported drive firmware versions, refer to the DS4000 Support Web site: www.ibm.com/systems/support/storage/disk – Use of non-supported drives in the drive modules can cause the storage subsystem to fail.
Table 49. Drive LED activity (continued) LED LED state Descriptions Activity LED Steady green The green LED lights to indicate that the drive is properly installed and is spun up by the DS4000 controller. Fault LED Flashing amber The amber LED flashes to indicate that a drive has been identified by the software. Fault LED Steady amber The amber LED lights to indicate a drive failure due to bad or uncertified drive.
Figure 110. Hot-swap E-DDM LEDs 3. Determine the bay into which you want to install the E-DDM. 4. Remove the blank tray by doing the following: a. Release the latch on the E-DDM CRU by pressing on the inside of the bottom of the tray handle. b. Lift the closed latch to its open position. (The latch is at a 90° angle to the front of the E-DDM when open.) c. Pull the blank tray out of the bay. d. Save the blank tray for later use. 5.
Note: Make sure that the EMC gasket does not snag on the bezel. d. Push the tray handle down until it latches into place. Replacing hot-swap E-DDMs E-DDM problems include any malfunctions that delay, interrupt, or prevent successful I/O activity between the hosts and the E-DDMs in the storage subsystem. This includes transmission problems between the host controllers and the E-DDMs. This section explains how to replace a failed E-DDM.
Attention: After you remove a E-DDM CRU, wait 70 seconds before replacing or reseating the E-DDM CRU to allow it to properly spin down. Failure to do so may cause undesired events. 8. Use the DS4000 Storage Manager subsystem management window to verify that the E-DDM is shown in the Storage Subsystem Management window. Replacing multiple E-DDMs This section provides guidelines for upgrading the E-DDMs in the storage subsystem.
v Which method most closely matches the recommended drive upgrade procedure that is provided in the operating system or the storage-management software documentation. v Which RAID level is used on the affected drives. (RAID 0 requires you to replace all the E-DDMs at the same time.) v How much downtime is acceptable as you swap the E-DDMs. v The number of E-DDMs in an array. Replacing E-DDMs one at a time is better suited for arrays consisting of 3 to 5 E-DDMs.
Attention: When you handle static-sensitive devices, take precautions to avoid damage from static electricity. For details about handling static-sensitive devices, see “Handling static-sensitive devices” on page 33. 4. Unpack the new E-DDMs. Set the E-DDMs on a dry, level surface away from magnetic fields. Save the packing material and documentation in case you need to return them. 5. Perform the following steps: a. Stop all I/O activity to the storage subsystem and attached storage expansion enclosures.
the E-DDMs are powered up after the storage subsystem. For instructions on powering up the storage subsystem, see the storage subsystem documentation. c. Turn on the power to the storage subsystem; then restart or turn on the power to the host. 9. Turn on the power to each device, based on the power-on sequence in step 8 on page 158. To turn on power to the storage subsystem and the storage expansion enclosures, turn on the power supply and fan unit switches on the back of the storage subsystem.
2. Use the DS4000 Storage Manager software to check the status of the unit. Correct any problems that are reported. 3. Back up the data in the arrays and logical drives that are configured using the E-DDMs that you are replacing. Attention: When you handle static-sensitive devices, take precautions to avoid damage from static electricity. For details about handling static-sensitive devices, see “Handling static-sensitive devices” on page 33. 4. Unpack the new E-DDMs.
v If the Drive fault LED stays on or the Drive activity LED stays off, the new E-DDM might be faulty or might be an uncertified drive. See the DS4000 Storage Manager software for problem determination. In the case of an uncertified drive, verify that the drive options or drive FRU part number is correct for your storage subsystem. 8. Use the DS4000 Storage Manager software to monitor the status of the new E-DDM and the progress of the data reconstruction.
Attention: All devices on the loop must have the same data transfer rate, which means that you must set the link rate on the storage expansion enclosure to the same rate as the storage subsystem to which it is connected. Information about supported DS4000 storage subsystems can be obtained from the certified Compatibility Matrix, which can be found at the following Internet location: www-1.ibm.com/servers/storage/disk/ds4000/interop-matrix.html Table 50.
ds470091 Link Rate LEDs Two on = 4 Gbps One on = 2 Gbps Figure 112. Link rate LEDs If both Link Rate indicator LEDs are on, the data transfer rate is set for 4 Gbps. If one Link Rate indicator light is on, the data transfer rate is set for 2 Gbps. 3. Is the data transfer rate set correctly? v Yes - Go to step 8 on page 164. v No - Go to step 5 to change the setting. Attention: When you handle static-sensitive devices, take precautions to avoid damage from static electricity.
6. 7. 8. 9. b. Use a small screwdriver or the tip of a ball point pen to slide the Link Rate switch to the left or right to set the desired fibre channel operating speed. Attention: Although the Link Rate LED indicates the correct speed setting, the link rate speed does not change until after you cycle power to the storage subsystem. Repeat step 1 on page 162 through step 5 on page 163 for all of the storage subsystems in the configuration.
replaceable units (CRUs) and do not require preventive maintenance. Use only the supported power supply and fan units for your specific storage subsystem. Each power supply and fan unit has a built-in sensor that detects the following conditions: v Over-voltage v Over-current v Overheated power supply If any of these conditions occurs, one or both power supplies will shut down.
CAUTION: Never remove the cover on a power supply and fan unit or any part that has the following label attached. Hazardous voltage, current, and energy levels are present inside any component that has this label attached. There are no serviceable parts inside these components. If you suspect a problem with one of these parts, contact a service technician. 1. If needed, use the DS4000 Storage Manager client software to print a storage system profile. 2.
DANGER Electrical current from power, telephone, and communication cables is hazardous. To avoid a shock hazard: v Do not connect or disconnect any cables or perform installation, maintenance, or reconfiguration of this product during an electrical storm. v Connect all power cords to a properly wired and grounded electrical outlet. v Connect to properly wired outlets any equipment that will be attached to this product. v When possible, use one hand only to connect or disconnect signal cables.
Attention: The left and right power supply and fan units are seated in the DS4700 Express chassis in opposite orientations. If you cannot fully insert the power supply and fan unit into the power supply and fan unit bay, flip it 180° and reinsert it. Make sure that the levers lock into place in the storage subsystem chassis. Do not force fit. The power supply and fan unit is designed to prevent it from being inserted into the chassis incorrectly. 13. Plug in the power cord and turn on the power. 14.
v Yes - Select the Recovery Guru toolbar button in the Subsystem Management window and complete the recovery procedure. If a problem is still indicated, contact IBM Customer and Technical Support. v No - Go to step 20. 20. Create, save, and print a new storage subsystem profile. Replacing a dc power supply and fan unit CAUTION: This unit has more than one power source. To remove all power from the unit, all dc MAINS must be disconnected.
CAUTION: To reduce the risk of electric shock or energy hazards: v This equipment must be installed by trained service personnel in a restricted-access location, as defined by the NEC and IEC 60950-1, First Edition, The Standard for Safety of Information Technology Equipment. v Connect the equipment to a reliably grounded safety extra low voltage (SELV) source.
Attention: The fans in the dc power supplies draw in fresh air and force out hot air. The dc power supplies are hot-swappable and redundant; however, if the fans in one dc power supply and fan unit fail, you must replace the entire failed dc power supply and fan unit within 72 hours to maintain redundancy and optimum cooling. Do not remove the failed dc power supply and fan unit until you have the replacement dc power supply and fan unit.
placing the appropriate labels on the dc power supply and fan unit CRU to mark the LEDs correctly. The label sheet contains the peel-off labels that you actually place on the dc power supply and fan unit CRU. 5. Using the information provided on the instruction sheet, place the labels on the dc power supply and fan unit CRU to correctly mark the LEDs. 6. Turn off the power switch on the new unit. 7. Check the Fault LED to locate the failed dc power supply and fan unit.
9. Turn off the dc power supply switch, set disconnect devices to the OFF position, and then unplug the power cord from the failed dc power supply and fan unit. Attention: a. IBM recommends that you use the disconnect device to remove power before disconnecting the dc power cord. b. The power switch on the dc power supply and fan unit does not turn off the electrical current supplied to the device.
1 07 70 ds4 Figure 115. Replacing a dc power supply and fan unit 15. Based on the status of the Power and Fault LEDs, choose one of the following steps: v Fault LED is on and dc power LED are off - The new unit might be installed incorrectly. The dc power supply and fan unit switch may not be turned on. The power cord plug may not be fully inserted into the power source or the power supply and fan unit dc socket. There is not any power to the power source that the power supply-unit is connected to.
20. Create, save, and print a new storage subsystem profile. Replacing a battery unit Each RAID controller in the DS4700 Express Storage Subsystem contains a rechargeable battery unit that maintains data in the cache memory for three days without power to the unit. Use the following procedure if the DS4000 Storage Manager client instructs you to replace the battery unit because the current battery has failed. You can also use the DS4000 Storage Manager client to check the status of the battery.
3 4 1 12 2 00 7 s4 d Figure 116. Removing and replacing a battery unit from the controller chassis Attention: This product contains a sealed Lithium Ion battery. Discharged Lithium and Lithium Ion batteries are currently designated to be disposed of in normal trash. However, users should contact their municipal waste disposal facility prior to discarding any used battery in normal trash.
Save all packing materials in the event you need to return the new battery unit. 8. Insert the new battery unit into the controller chassis. Make sure the new battery unit is inserted in the correct orientation in the battery unit bay. Press the battery unit fully into the bay until it clicks into place. Do not force fit. The battery unit is designed to prevent it from being inserted into the chassis incorrectly. Note: The green Battery Charging LED flashes until the battery is fully charged. 9.
9. Reconnect the interface cable. ESM Fault Light ESM SFP Transceiver Fiber-optic cable (Host interface cable) Figure 117. Replacing an SFP module 10. Check the Bypass and Fault LEDs for the new SFP module. 11. Based on the status of the Bypass and Fault LEDs, choose one of the following steps: v Bypass LED or Fault LED is on - Reinstall the SFP module and cables, and verify that the SFP module and cables are securely connected.
1. Complete the power-off sequence described in “Turning off the storage subsystem” on page 134 ensuring that the DS4000 storage subsystem is turned off before any attached storage expansion enclosures. Attention: a. The power switch on the power supply and fan unit does not turn off the electrical current supplied to the device. The DS4700 Express Storage Subsystem might also have more than one connection to dc power.
Attention: Do not stack E-DDM CRUs on top of each other. Protect the E-DDM CRUs from vibrations or sudden shocks. 10. Use a #1 Phillips screwdriver to loosen the four front cage frame screws on the midplane, as shown in Figure 118. Front cage frame screws 810midpl Front cage frame screws Figure 118. Front cage frame screw locations 11. On the back of the DS4700 Express, remove the four Phillips screws (two screws on each side) that hold the sides of the DS4700 Express chassis to the sides of the rails.
Screws ds470096 Screws Figure 119. Screws holding the top and bottom sides of the chassis to the cage frame 14. Grasp the blue handle in the center of the front cage frame and pull it outward to slide the front cage frame out approximately two inches. Grab the two sides of the front cage frame and remove it from the chassis. 15. 16. 17. 18. 19. Note: The front cage frame might be tightly secured in the chassis.
23. Re-insert the controllers and reconnect the fibre channel cables. 24. Re-insert the power supply and fan units and reconnect the power supply cords. 25. (For DS4700 Express Storage Subsystems with dc power supply and fan units only) Turn on all attached disconnect devices before proceeding to step 26. 26. Power on the attached storage expansion enclosures. 27. Wait at least 3 minutes and then power on the DS4700 Express Storage Subsystem.
Chapter 6. Hardware maintenance This chapter contains information to help you solve some of the simpler problems that you might have with your storage subsystem. It contains the problem indicators and error messages along with suggested actions to take to resolve the problem. For instructions on how to obtain service and technical assistance for your storage subsystem and other IBM products, see “Getting information, help, and service” on page xxvi.
Table 51. Symptom-to-FRU index Problem indicator Amber LED is lit Component Possible cause Possible solutions Drive CRU (Drive Fault LED) Note: The green Drive Activity LED might also be lit. Drive failure Replace the failed drive. Note: The amber LED on the drive is also lit if the drive slot has a blank drive tray inserted. Drive uncertified Verify the drive option and FRU part number to verify that it is supported by the DS4700 Express Storage Subsystem.
Table 51. Symptom-to-FRU index (continued) Problem indicator Amber LED is lit (continued) Component Possible cause Possible solutions Front panel General machine fault A Fault LED is lit somewhere on the storage subsystem (check for Amber LEDs on CRUs). General machine fault (continued) Open the DS4700 Express Storage Subsystem Management window and click on the Recovery Guru to see problems in the DS4700 Express configuration.
Table 51. Symptom-to-FRU index (continued) Problem indicator All green LEDs are off Component Possible cause All CRUs Subsystem power is Check that all storage subsystem off power cables are plugged in and the power switches are on. If applicable, check that the main circuit breakers for the rack are powered on. AC power failure Possible solutions Check the main circuit breaker and ac outlet. Power supply failure Replace the power supply.
Table 51. Symptom-to-FRU index (continued) Problem indicator One or more green LEDs are off Component Possible cause Possible solutions Power supply CRUs Power cable is unplugged or switches are turned off. Make sure that the power cable is plugged in and that the switches are turned on. All drive CRUs Midplane failure Replace the midplane. Contact an IBM technical support representative. Several CRUs Hardware failure Replace the affected CRUs.
Table 51. Symptom-to-FRU index (continued) Problem indicator Component Hard disk drive Several CRUs not visible in RAID management software Possible cause Possible solutions Drive or drives failed Replace failed drive or drives. FC cable failed Replace FC cable. SFP failed Replace SFP. RAID controller failure Replace RAID controller. Midplane failure Have the midplane replaced. Contact an IBM technical support representative. Drive CRU has interface problem with the ESM or controller.
1 6 2 3 5 69 00 47 ds 4 7 Figure 120. DS4700 Express Storage Subsystem parts list Table 52.
Table 52. Parts listing (DS4700 Express Storage Subsystem) (continued) Index DS4700 Express Storage Subsystem FRU P/N 5 2 Gbps FC, 73.4 GB/10K drive module 42D0386 2 Gbps FC, 146.8 GB/10K drive module 42D0369 2 Gbps FC, 300 GB/10K drive module 42D0370 2 Gbps FC, 36.4 GB/15K drive module 42D0371 2 Gbps FC, 73.4 GB/15K drive module 42D0372 2 Gbps FC, 146.8 GB 15K drive module 42D0373 4 Gbps FC, 36.4 GB/15K drive module 40K6815 4 Gbps FC, 73.4 GB/15K drive module 40K6819 4 Gbps FC, 146.
Appendix A. Records Whenever you add options to your DS4700 Express, be sure to update the information in this appendix. Accurate, up-to-date records make it easier to add other options and provide needed data whenever you contact your IBM technical support representative. Identification numbers Record and retain the following information.
Storage subsystem and controller information record Table 53 provides a data sheet for recording storage subsystem names, management types, Ethernet hardware addresses, and IP addresses. Make a copy of this table and complete the information for your storage subsystems and controllers. Use the information to set up the BOOTP table for the network server and the host or Domain Name System (DNS) table. The information is also helpful if you add storage subsystems after initial installation.
Sample information record Table 54 shows a sample information record. This network contains storage subsystems that are managed by using both the direct-management and host-agent-management method. Table 54. Sample information record Storage Management subsystem name method Controllers-Ethernet and IP addresses, and host name Controller A Finance Direct Host-IP address and host name Controller B Hardware Hardware Ethernet address Ethernet address = 00a0b8020420 = 00a0b80000d8 IP address = 192.168.128.
Installed device records Use the following table to record the number of the hard disk drives that you replaced and the corresponding bay number. Attention: If you replace a hard disk drive in the wrong drive bay it might cause a loss of data. Table 55.
Appendix B. Rack mounting template This appendix provides duplicate copies of the rack mounting templates. If you want to tear out the templates from this document for easier use, use these copies rather than those provided in “Installing the support rails” on page 36. Use the following templates (Figure 121 on page 196 and Figure 122 on page 197) to identify the proper locations for inserting M5 screws when mounting the support rails and DS4700 Express to a rack.
3U 3U DS4700 Install second ---> Install first ---> Bezel (Front Left) FRONT Bezel Rack Mounting (Front Right) Template <--- Install first 2U 2U Install first ---> <--- Install first 1U 1U Rail assembly (Front Left) Rail assembly (Front Right) ds470001 Install second ---> 0U Figure 121.
3U 3U DS4700 REAR Rack Mounting Template 2U 2U Rail mounting guide 1U 1U Rail assembly (Rear right) ® Printed in the U.S.A ds470002 Rail assembly (Rear Left) 0U 0U Figure 122. Rear rack mounting template Appendix B.
198 IBM System Storage DS4700 Express Storage Subsystem: Installation, User’s and Maintenance Guide
Appendix C. Power cords For your safety, IBM provides a power cord with a grounded attachment plug to use with this IBM product. To avoid electrical shock, always use the power cord and plug with a properly grounded outlet. IBM power cords used in the United States and Canada are listed by Underwriter's Laboratories (UL) and certified by the Canadian Standards Association (CSA).
Table 56. IBM power cords (continued) 200 IBM power cord part number Feature code 39Y7917 9820 Power Cord (250v, 10A, 2.
Table 56. IBM power cords (continued) IBM power cord part number Feature code 39Y7923 9825 Power Cord (250v, 10A, 2.
202 IBM System Storage DS4700 Express Storage Subsystem: Installation, User’s and Maintenance Guide
Appendix D. Additional DS4000 documentation The following tables present an overview of the IBM System Storage DS4000 Storage Manager, Storage Subsystem, and Storage Expansion Enclosure product libraries, as well as other related documents. Each table lists documents that are included in the libraries and what common tasks they address. You can access the documents listed in these tables at both of the following Web sites: www.ibm.com/servers/storage/support/disk/ www.ibm.
Table 57. DS4000 Storage Manager Version 10 titles by user tasks (continued) Title User tasks Planning IBM System Storage DS4000 Fibre Channel and Serial ATA Intermix Premium Feature Installation Overview U Hardware installation U Software installation Configuration U Operation and administration Diagnosis and maintenance U DS4800 Storage Subsystem library Table 58 associates each document in the DS4800 Storage Subsystem library with its related common user tasks. Table 58.
DS4700 Storage Subsystem library Table 59 associates each document in the DS4700 Storage Subsystem library with its related common user tasks. Table 59.
DS4500 Storage Subsystem library Table 60 associates each document in the DS4500 (previously FAStT900) Storage Subsystem library with its related common user tasks. Table 60.
DS4400 Storage Subsystem library Table 61 associates each document in the DS4400 (previously FAStT700) Storage Subsystem library with its related common user tasks. Table 61.
DS4300 Storage Subsystem library Table 62 associates each document in the DS4300 (previously FAStT600) Storage Subsystem library with its related common user tasks. Table 62.
DS4200 Express Storage Subsystem library Table 63 associates each document in the DS4200 Express Storage Subsystem library with its related common user tasks. Table 63.
DS4100 Storage Subsystem library Table 64 associates each document in the DS4100 (previously FAStT100) Storage Subsystem library with its related common user tasks. Table 64.
DS4000 Storage Expansion Enclosure documents Table 65 associates each of the following documents with its related common user tasks. Table 65.
Other DS4000 and DS4000-related documents Table 66 associates each of the following documents with its related common user tasks. Table 66.
Appendix E. Accessibility This section provides information about alternate keyboard navigation, which is a DS4000 Storage Manager accessibility feature. Accessibility features help a user who has a physical disability, such as restricted mobility or limited vision, to use software products successfully.
Table 67. DS4000 Storage Manager alternate keyboard operations (continued) Short cut Action Alt+ underlined letter Access menu items, buttons, and other interface components by using the keys associated with the underlined letters. For the menu options, select the Alt + underlined letter combination to access a main menu, and then select the underlined letter to access the individual menu item. For other interface components, use the Alt + underlined letter combination.
Notices This information was developed for products and services offered in the U.S.A. IBM may not offer the products, services, or features discussed in this document in other countries. Consult your local IBM representative for information on the products and services currently available in your area. Any reference to an IBM product, program, or service is not intended to state or imply that only that IBM product, program, or service may be used.
Adobe and PostScript are either registered trademarks or trademarks of Adobe Systems Incorporated in the United States and/or other countries. Cell Broadband Engine is a trademark of Sony Computer Entertainment, Inc., in the United States, other countries, or both and is used under license therefrom. Intel, Intel Xeon, Itanium, and Pentium are trademarks or registered trademarks of Intel Corporation or its subsidiaries in the United States and other countries.
Some software might differ from its retail version (if available) and might not include user manuals or all program functionality. Particulate contamination Attention: Airborne particulates (including metal flakes or particles) and reactive gases acting alone or in combination with other environmental factors such as humidity or temperature might pose a risk to the storage expansion enclosure that is described in this document.
205/A015 3039 E. Cornwallis Road P.O. Box 12195 Research Triangle Park, North Carolina 27709-2195 U.S.A. In the request, be sure to include the publication part number and title. When you send information to IBM, you grant IBM a nonexclusive right to use or distribute the information in any way it believes appropriate without incurring any obligation to you.
failure to satisfy the protection requirements resulting from a nonrecommended modification of the product, including the fitting of non-IBM option cards. This product has been tested and found to comply with the limits for Class A Information Technology Equipment according to CISPR 22/European Standard EN 55022. The limits for Class A equipment were derived for commercial and industrial environments to provide reasonable protection against interference with licensed communication equipment.
Deutschland: Einhaltung des Gesetzes über die elektromagnetische Verträglichkeit von Geräten Dieses Produkt entspricht dem “Gesetz über die elektromagnetische Verträglichkeit von Geräten (EMVG)”. Dies ist die Umsetzung der EU-Richtlinie 2004/108/EG in der Bundesrepublik Deutschland. Zulassungsbescheinigung laut dem Deutschen Gesetz über die elektromagnetische Verträglichkeit von Geräten (EMVG) (bzw.
Glossary This glossary provides definitions for the terminology and abbreviations used in IBM System Storage DS4000 publications. host system and the external fibre-channel (FC) link and vice versa. Also called an I/O adapter, host adapter, or FC adapter. If you do not find the term you are looking for, see the IBM Glossary of Computing Terms located at the following Web site: advanced technology (AT) bus architecture. A bus standard for IBM compatibles.
auto-volume transfer/auto-disk transfer (AVT/ADT). A function that provides automatic failover in case of controller failure on a storage subsystem. customer replaceable unit (CRU). An assembly or part that a customer can replace in its entirety when any of its components fail. Contrast with field replaceable unit (FRU). AVT/ADT. See auto-volume transfer/auto-disk transfer. AWT. See Abstract Windowing Toolkit. basic input/output system (BIOS).
drive channels. The DS4200, DS4700, and DS4800 subsystems use dual-port drive channels that, from the physical point of view, are connected in the same way as two drive loops. However, from the point of view of the number of drives and enclosures, they are treated as a single drive loop instead of two different drive loops. A group of storage expansion enclosures are connected to the DS4000 storage subsystems using a drive channel from each controller.
(FC-PH) services to transmit SCSI commands, data, and status information between a SCSI initiator and a SCSI target across the FC link by using FC frame and sequence formats. HBA. See host bus adapter. field replaceable unit (FRU). An assembly that is replaced in its entirety when any one of its components fails. In some cases, a field replaceable unit might contain other field replaceable units. Contrast with customer replaceable unit (CRU). heterogeneous host environment.
initial program load (IPL). The initialization procedure that causes an operating system to commence operation. Also referred to as a system restart, system startup, and boot. integrated circuit (IC). A microelectronic semiconductor device that consists of many interconnected transistors and other components. ICs are constructed on a small rectangle cut from a silicon crystal or other semiconductor material.
logical drive data to verify that it can be accessed, and optionally scans the logical drive redundancy information. medium access control (MAC). In local area networks (LANs), the sublayer of the data link control layer that supports medium-dependent functions and uses the services of the physical layer to provide services to the logical link control sublayer. The MAC sublayer includes the method of determining when a device has access to the transmission medium. Metro Mirroring.
Standard Architecture (EISA) bus. ISA and EISA boards plug into an IA or EISA slot, while high-speed PCI controllers plug into a PCI slot. See also Industry Standard Architecture, Extended Industry Standard Architecture. polling delay. The time in seconds between successive discovery processes during which discovery is inactive. port.
serial ATA. The standard for a high-speed alternative to small computer system interface (SCSI) hard drives. The SATA-1 standard is equivalent in performance to a 10 000 RPM SCSI drive. serial storage architecture (SSA). An interface specification from IBM in which devices are arranged in a ring topology. SSA, which is compatible with small computer system interface (SCSI) devices, allows full-duplex packet multiplexed serial data transfers at rates of 20 Mbps in each direction.
elements must be defined to grant access to host computers and host groups using logical drive-to-LUN mappings. striping. Splitting data to be written into equal blocks and writing blocks simultaneously to separate disk drives. Striping maximizes performance to the disks. Reading the data back is also scheduled in parallel, with a block being read concurrently from each disk then reassembled at the host. subnet.
230 IBM System Storage DS4700 Express Storage Subsystem: Installation, User’s and Maintenance Guide
Index A a hot-swap E-DDM replacing 155 a hot-swap hard disk drive replacing 155 about this document xxi ac power cords and receptacles 27 ac power recovery 27 ac power requirements 27 ac power supply cabling 111 ac power supply and fan unit replacing 49, 164 ac power supply and fan unit, removal ac site wiring requirements 27 accessible documentation 217 acoustical noise emission values 26 address, IBM xxix airflow 12, 25, 28 altitude ranges 25 area requirements 22 audience xxi 42 B battery LEDs 142 repla
contamination, particulate and gaseous 217 controller information record 192 removal 41 replacing 48 controller information 123 controllers description 8 LEDs 129 location 8 replacing 146 cooling 28 Copy Services Guide 203 customer replaceable units (CRUs) 6 removal 40 removing a ac power supply and fan unit 41 removing a controller 41 removing a dc power supply and fan unit 41, 43 removing a hard disk drive 45 removing an ac power supply and fan unit 42 removing an E-DDM 45 removing E-DDMs 41 removing hard
emergency shutdown 136 enclosure ID 55 enclosure ID settings 97 enclosure information 123 environmental requirements and specifications Ethernet connecting to RAID controller 100 24 I IBM address xxix IBM Safety Information 212 IBM System Storage DS4000 Health Check process 117 IBM System Storage DS4700 Express battery unit 17 battery unit LEDs 128 cache memory and cache battery 140 installing the configuration 110 identification numbers 191 in-band management method 102 indicator LEDs during power up 125
link rate setting, verifying 161 loop configurations overview 107 redundant 108 loop redundancy, described 68 M managed hub in fibre channel loop configurations 107, 108 using to connect host to RAID controller 105 memory, cache cache active LED 141 size of 140 midplane replacing 178 Migration Guide 203 mixed configuration cabling topologies 76 one DS4700 Express and two or more storage expansion enclosures 94 multiple drives replacing 156 multiple E-DDMs replacing 156 My Support 5 N notes, important 216
restoring power after planned shutdown 119 after power supply shutdown 138 restoring power after an emergency 137 RS-232 serial port 100 S safety information xv safety, static-sensitive devices 33 SATA technology 3 sending your comments to IBM xxix settings fibre-channel loop and ID 55, 56 storage expansion enclosure 97 SFP modules described 19 replacing 177 shock and vibrations requirements 26 shutdown, emergency 136 Simple Network Management Protocol (SNMP) traps 11 site preparation 35 small form-factor
Web sites (continued) premium feature activation readme files xxvii SAN support xxvii switch support xxvii 236 xxviii IBM System Storage DS4700 Express Storage Subsystem: Installation, User’s and Maintenance Guide
Part Number: 94Y8472 GC26-7843-05 (1P) P/N: 94Y8472 Printed in USA
