IBM System Storage DS5020 Storage Subsystem Installation, User’s, and Maintenance Guide
IBM System Storage DS5020 Storage Subsystem Installation, User’s, and Maintenance Guide
Note: Before using this information and the product it supports, be sure to read the general information in “Safety” on page xiii and “Notices” on page 197. First Edition (July 2009) © Copyright International Business Machines Corporation 2009. US Government Users Restricted Rights – Use, duplication or disclosure restricted by GSA ADP Schedule Contract with IBM Corp.
Contents Figures . . . . . . . . . . . . . . . . . . . . . . . . . . . . ix Tables . . . . . . . . . . . . . . . . . . . . . . . . . . . . xi Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . xiii About this document . . . . . . . . . . . . . . . . . . . . . . xix Who should read this document . . . . . . . . . . . . . . . . . . xix How this document is organized . . . . . . . . . . . . . . . . . . xix DS5020 and DS4000-family storage subsystem installation tasks - General overview . . . . . .
Power and site wiring requirements . . . . . . . . . . . . . . . 23 Heat output, airflow, and cooling . . . . . . . . . . . . . . . . . 24 Chapter 2. Installing the storage subsystem . . . . Installation overview . . . . . . . . . . . . . . Handling static-sensitive devices . . . . . . . . . Preparing for installation . . . . . . . . . . . . Tools and hardware required . . . . . . . . . . Preparing the site . . . . . . . . . . . . . . Preparing the rack cabinet. . . . . . . . . . .
Host-agent (in-band) management method. . . . . . . . Direct (out-of-band) management method . . . . . . . . Connecting hosts to the DS5020 using Fibre Channel host ports Fibre Channel and iSCSI connections . . . . . . . . . . Fibre Channel host loop configurations . . . . . . . . . . Redundant Fibre Channel host loops . . . . . . . . . . iSCSI configurations . . . . . . . . . . . . . . . . . DS5020 host iSCSI configurations . . . . . . . . . . . Installing the storage subsystem configuration . . . . . . .
Parts listing. . . . . . . . . . . . . . . . . . . . . . . . . . 160 Appendix A. Records . . . . . . . . Identification numbers . . . . . . . . . Storage subsystem and controller information Sample information record . . . . . . Installed device records . . . . . . . . . . . . . . record . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 163 163 164 165 166 Appendix B. Rack mounting templates. . . . . . . . . . . . . . .
Index . . . . . . . . . . . . . . . . . . . . . . . . . . . .
viii IBM System Storage DS5020 Storage Subsystem: Installation, User’s, and Maintenance Guide
Figures 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. 49. 50. DS5020 hot-swap drive bays . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Back view; controllers with two standard Fibre Channel host expansion channels . . . . . . .
51. 52. 53. 54. 55. 56. 57. 58. 59. 60. 61. 62. 63. 64. 65. 66. 67. 68. 69. 70. 71. 72. 73. 74. 75. 76. 77. 78. 79. 80. 81. 82. 83. 84. 85. 86. 87. 88. 89. 90. 91. 92. 93. x Ethernet and serial port locations on DS5020 . . . . . . . . . . . . . . . . . . . Host-agent (in-band) managed storage subsystems . . . . . . . . . . . . . . . . . Direct (out-of-band) managed storage subsystems . . . . . . . . . . . . . . . . . Location of host cables on RAID controllers on the DS5020 . . . . . . . . . . . . . .
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. Where to find DS5020 and DS4000-family installation and configuration procedures . . . . . . xx DS5020 weights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 DS5020 component weights. . . . . . . . . . . . . . . . . . . . . . . . . . . 20 DS5020 shipping carton dimensions. . . . . . . . . . . . . . . . . . . . . . . .
xii IBM System Storage DS5020 Storage Subsystem: Installation, User’s, and Maintenance Guide
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™ DS5020 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.
Statement 1: 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.
Statement 2: CAUTION: When replacing the lithium battery, use only an equivalent type battery recommended by the manufacturer. If your system has a module containing a lithium battery, replace it only with the same module type made by the same manufacturer. The battery contains lithium and can explode if not properly used, handled, or disposed of.
Class 1 Laser Product Laser Klasse 1 Laser Klass 1 Luokan 1 Laserlaite Apparell À Laser de Calsse 1 IEC 825-11993 CENELEC EN 60 825 Statement 4: ≥ 18 kg (39.7 lb) ≥ 32 kg (70.5 lb) ≥ 55 kg (121.2 lb) CAUTION: Use safe practices when lifting. 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.
Statement 8: CAUTION: Never remove the cover on a power supply 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.
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 DS5020 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.
DS5020 and DS4000-family storage subsystem installation tasks General overview For educational information about the DS5020 and other IBM System Storage products, go to http://ibmdsseriestraining.com/. Table 1 provides a sequential list of many installation and configuration tasks that are common to most DS5020 and DS4000-family configurations. When you install and configure your 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. Where to find DS5020 and DS4000-family installation and configuration procedures (continued) Installation task 8 Where to find information or procedures Zone the fabric v DS Storage Manager Version 10 Installation and Host switch (SAN-attached Support Guide only) v DS4000 Storage Manager Copy Services Guide (describes switch zoning for the Remote Mirror Option) v See also the documentation provided by the switch manufacturer.
Table 1.
2. Click the link for your storage subsystem (for example, DS5020). 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. Click the applicable 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. 6. In the table, click on the applicable link in the Current version and readmes column. 7.
Premium feature activation Activate a DS5020 or DS4000 premium feature by using the online tool: http://www-912.ibm.com/PremiumFeatures/jsp/keyInput.jsp IBM publications center Find IBM publications: http://www.ibm.com/shop/publications/order/ Support for System p® servers Find the latest information supporting System p AIX® and Linux® servers: http://www.ibm.com/systems/support/supportsite.
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. IBM designs and manufactures equipment to internal and external standards that require certain environments for reliable operation.
xxviii IBM System Storage DS5020 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 DS5020 Storage Subsystem (hereafter referred to as DS5020 or storage subsystem). This chapter also includes an inventory checklist and important information about best practices guidelines and product updates for your DS5020.
storage management, copy service options, and optional advanced disaster recovery functions are available for the DS5020, including FlashCopy®, VolumeCopy, and Enhanced Remote Mirroring. The DS5020 supports up to four hosts in a redundant direct-attached Fibre Channel configuration. When using Fibre Channel or Ethernet switches, you can redundantly connect up to 512 hosts to the DS5020 FC and iSCSI host ports. You can order up to 128 storage partitions for the DS5020.
Contact your IBM sales representative or reseller for more information about the various DS5020 and options. Operating system support For supported operating systems, see the latest DS Storage Manager host software readme file and the IBM DS4000 and DS5000 series products interoperability matrix at the following Web site for additional host operating system support: http://www-1.ibm.com/servers/storage/disk/ds4000/interop-matrix.
– – – – – RAID controllers (2) AC power supply and fan units (2) Fiber-optic cables (2) Battery units (2) Power cables (2 rack jumper line cords) – 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) - M4 screws (4) - Washers (8) – 8 Gbps SFPs (4 or 8) Note: The number of 8 Gbps SFPs depends on the storage subsystem configuration. The SFPs are preinstalled in the DS5020 ports.
– Box ID labels (used to label the enclosure IDs on the front of the DS5020) Note: If you ordered additional premium features or entitlements, the premium features activation or entitlement kits might 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 32.
v v v v 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 for information about storage subsystem power requirements. Contact your IBM service representative for additional information if needed.
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. DS5020 hot-swap drive bays The DS5020 supports both Fibre Channel (FC) and SATA E-DDMs intermixed in the storage subsystem drive chassis. The DS5020 supports up to sixteen 4 Gbps FC or 3 Gbps SATA E-DDMs.
Using non-supported E-DDM options or FRUs will result in the E-DDM being locked out by the DS5020 controller firmware and might also damage the drive connector in the enclosure midplane. Attention: 1. After you remove an 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 might cause undesired events. 2. Never hot-swap an E-DDM CRU when its associated green Activity LED is flashing.
Connectors, switch, and enclosure ID The controllers support fiber-optic interfaces for both the host channel and drive channel ports. The controllers also contain two Ethernet ports for storage subsystem management purposes and a serial port that IBM Support uses to perform problem recovery and troubleshooting procedures. The default IP addresses for the Ethernet ports on controller A are 192.168.128.101 and 192.168.129.101. The default IP addresses for the Ethernet ports on controller B are 192.168.128.
Serial port Ethernet ports Dual-ported drive channel Fibre Channel host channels Enclosure ID Controller A Controller B Enclosure ID Fibre Channel host channels Dual-ported drive channel Ethernet Serial ports port Figure 2.
Setting up IP addresses for DS5020 storage controllers After you install DS Storage Manager (as described in the DS 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 DS5020 controllers” Steps for setting up the DHCP/BOOTP server and network: To complete this procedure, you must have the following compon
2. Start the DS Storage Manager client software. The Enterprise Management window opens. 3. Add the DS5020 subsystem to the Enterprise Management domain using the IP address of the host that has Fibre Channel connectivity to the DS5020. 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 drop-down menu.
6. In the Change Network Configuration window, click on the Controller A and Controller B tabs and type the new TCP/IP addresses in their applicable fields. Click OK. 7. Close the Subsystem Management window, wait at least five minutes, then delete the default DS5020 storage subsystem entry in the Enterprise Management window. 8.
Figure 6 shows a power supply and fan unit and the airflow through the storage subsystem. Figure 6.
CAUTION: When replacing the lithium battery, use only an equivalent type battery recommended by the manufacturer. If your system has a module containing a lithium battery, replace it only with the same module type made by the same manufacturer. The battery contains lithium and can explode if not properly used, handled, or disposed of. Do not: v Throw or immerse into water v Heat to more than 100° C (212° F) v Repair or disassemble Dispose of the battery as required by local ordinances or regulations.
controller will start a battery learning cycle to determine whether the battery current capacity is sufficient. Data caching starts after the battery is charged to the programmed level. During the battery learn cycle, cache will be active if the battery is in good condition. If the battery fails the learn cycle, it is marked as failed. The battery learning cycle lasts up to three hours.
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 fiber-optic cable is to be installed. Do not install an SFP in any port that will not have a fiber-optic cable attached. Remove any SFP from any port that does not have fiber-optic cables attached. The DS5020 storage subsystem host ports support 2, 4, and 8 Gbps Fibre Channel speeds.
Software and firmware support code upgrades To enable support for the DS5020, you must make sure that your system software and firmware are the correct versions. To find the latest DS Storage Manager software, storage subsystem controller firmware, ESM, and NVSRAM firmware, check the firmware readme files. See “Finding DS5020 and DS4000-family readme files” on page xxiv to learn how to access the readme files on the Web.
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. The Drive Properties window opens and displays the properties for that drive. You must perform this step for each individual drive. To obtain the ESM and drive enclosure component firmware versions: 1.
the storage subsystem in different configurations. Table 3 lists the weight of each component. Table 2. DS5020 weights Weight 1 Unit Maximum DS5020 40 kg (88 lb) Empty 2 Shipping 16.4 kg (36.1 lb) 52.2 kg (115.0 lb) 1 Chassis with all CRUs and 16 drives. 2 Chassis without CRUs and drives but with front cage frame and midplane. Table 3. DS5020 component weights Unit Weight Drive 0.75 kg (1.65 lb) Power supply and fan unit 3.60 kg (7.
Table 5. Temperature and humidity requirements for storage subsystem when in storage or in transit Condition Parameter Requirement Temperature Storage range -10° - 65° C (14° - 149° F) Maximum rate of change 15° C (27° F) per hour Transit range -40° C to 65° C (-40° F to 149° F) Maximum rate of change 20° C (36° F) per hour Storage range 8% to 90% Transit range 5% to 95% Maximum dew point 26° C (79° F) Maximum gradient 10% per hour Relative humidity (no condensation) Table 6.
Figure 10. DS5020 airflow Table 8 lists the KVA, watts, and Btu calculations. These values assume the power supplies have a 73 percent efficiency and a power factor of 0.99. 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 8.
These levels are measured in controlled acoustical environments according to ISO 7779 and are reported in accordance with ISO 9296. The declared sound power levels indicate an upper limit, below which a large portion of machines operate. Sound pressure levels in your location might exceed the average 1-meter values stated because of room reflections and other nearby noise.
Power cords and receptacles: The storage subsystem ships with two jumper cords used to connect to the rack PDU. You must purchase the power cords that are appropriate for use in a typical outlet in the destination country. See Appendix D, “Power cords,” on page 179 for more information. Heat output, airflow, and cooling See “Airflow and heat dissipation” on page 21 for heat output, airflow, and cooling specifications.
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 11. Example of cold aisle/hot aisle rack configuration Chapter 1.
26 IBM System Storage DS5020 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 xiii. “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 DS5020 from the shipping box, remove the components from the DS5020 chassis to lighten the unit. See “Removing the CRUs” on page 36. 6. Record the serial number, machine type and model number, and RAID controller MAC addresses for your DS5020 storage subsystem in Appendix A, “Records,” on page 163. The serial number, machine type, and model number are located on the left edge of the front unit as shown in Figure 12. Ser ial number Machine type Model number Figure 12.
13. Turn on the power to the attached storage expansion enclosure and the DS5020 storage subsystem using the procedure described in “Powering on the storage subsystem” on page 95. 14. Install the DS Storage Manager host software on the management workstation (for out-of-band management) or on the host (for in-band management).
Support rails AC power supply and fan unit Backup battery unit Controller DS5020 Storage subsystem M5 x 8 mm screws (12) M4 x 8 mm screws (4) Small Form-factor Pluggable transceivers (pre-installed) Firmware and DS Storage Manager DVDs AC power cord (2) Complete the following steps to prepare the DS5020 storage subsystem for installation into a rack cabinet: 1. Prepare the site to meet all area, environmental, power, and site requirements. For more information, see “Specifications” on page 19.
Attention: The mounting rails, mounting hardware, and line jumper cords might be packed beneath the DS5020 in the shipping box. To remove these items from the shipping box without first removing the DS5020, open the two long sides of the shipping box. Then open and fold flat the two short sides of the shipping box. This enables you to access the mounting rails, mounting hardware, and line jumper cords without first removing the DS5020 from the shipping box.
v Sufficient space to install the storage subsystem v Enough stability to support the weight of the fully configured storage subsystem and associated systems. See “Weight” on page 19 for weight specifications. Make sure that all requirements, such as floor space, air conditioning, and electrical service, have been met. Other site preparation activities include the following tasks: v To make sure that there is enough room to move around the cabinet and install modules, clear space at the installation area.
Use the following templates (Figure 13 and Figure 14 on page 34) to identify the proper locations for inserting M5 screws when mounting the support rails and DS5020 storage subsystem to a rack cabinet. The locations for the M5 screws are highlighted in the templates. Hold the applicable template up to each side of the rack cabinet at the 3U section where you will install the DS5020. U boundaries are shown as horizontal dashed lines in the rack mounting templates.
3U 3U DS5020 REAR Rack Mounting Template 2U 2U Rail mounting guide 1U 1U Rail assembly (Rear Left) Rail assembly (Rear right) ® Printed in the U.S.A 0U 0U Figure 14. Rear rack mounting template Before installing the DS5020 in a rack cabinet, you must install the rails and rack-mounting hardware that come with your storage subsystem. The DS5020 requires an Electronic Industries Association (EIA) 310-D Type A 19-inch rack cabinet.
Support rail adjustment screws M5 screws Left support rail Right support rail Figure 15. Installing the support rails 1. Make sure that the rack cabinet has already been installed. 2. Make sure that a stabilizer has been correctly attached to the bottom front of the rack to prevent the rack from tipping forward while the DS5020 is being installed. Refer to the installation and service guide, or equivalent, for the rack as required. 3.
v The lip on the rail lines up with the bottom of the storage subsystem (the 0U boundary in Figure 14 on page 34). 5. Using a No. 2 Phillips screwdriver, loosen the two screws on the left support rail that hold the two parts of the rail together. The support rails are marked as left or right. 6. Hold the back of the rail against the inside of the rack-mounting flange. Make sure that the rail mounting guide pins are in the correct holes. 7.
installed the support rails (as listed in “Installing the support rails” on page 32). Alternately, you can use these instructions to lighten the DS5020 before removing it from the shipping box. The shipping box opens to provide access to the storage subsystem CRUs. The DS5020 comes with a rack-mounting hardware kit for installing it in a rack. It is easier to lift the DS5020 and install it in a rack cabinet if you remove all the CRUs first.
Lever Figure 16. 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.
Lever Latch Figure 17. 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 an E-DDM Complete the following steps to remove a hot-swap E-DDM: Note: The E-DDM comes installed in a drive tray. Do not attempt to detach the E-DDM from the tray. 1. Use Table 24 on page 166 to record the location and identify your E-DDMs.
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 39 for additional E-DDM CRUs. Installing the DS5020 into a rack on the support rails Complete the following steps to install the DS5020 in the rack cabinet. CAUTION: Do not install modules or other equipment in the top half of a rack mount cabinet while the bottom half is empty.
Front of Rack Figure 19. Installing the DS5020 4. Secure the storage subsystem. Figure 20 shows how to secure the storage subsystem to the rack. a. Align the front mounting holes on each side of the storage subsystem with the mounting holes on the front of the support rails. b. Using the M4 screws that you removed in step 2 on page 40, secure the sides in the back of the DS5020 to the rack rails. c. Secure the front of the DS5020 using the four M5 screws as shown in Figure 20.
5. Continue with one of the following actions: v If you did remove the DS5020 CRUs before installation (as described in “Removing the CRUs” on page 36), continue with “Replacing the components.” v If you did not remove the DS5020 CRUs before installation, continue with Chapter 3, “Cabling the storage subsystem,” on page 45.
Replacing 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. To remove all electrical current from the device, ensure that all power cords are disconnected from the power source. 2 1 CAUTION: Disconnect the power cord before replacing the power supply and fan unit.
along the sides of the power supply and fan unit bay. After the guide pins fit into the notches and power supply and fan unit fits snugly into the slot, push the lever upward or downward 90° depending on whether the power supply fan is inserted in the left or right bay to fully latch it into place. Push the front of the power supply and fan unit in gently to make sure that it is fully seated. 3. Repeat step 1 on page 43 and step 2 on page 43 to replace the second power supply and fan unit.
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.
Enclosure ID Enclosure ID Figure 24. Storage subsystem seven-segment enclosure IDs 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.
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. v Use of controls or adjustments or performance of procedures other than those specified herein might result in hazardous radiation exposure.
1.5 inch (38 mm) radius 3.0 inch (76 mm) diameter Figure 25. Bending and looping specifications for fiber-optic cables Installing SFP modules The DS5020 requires SFP modules. SFP modules convert electrical signals to optical signals that are required for Fibre Channel transmission to and from RAID controllers. Note: The SFPs are preinstalled in the DS5020.
v The operational or redundant loop performance is not affected when you install or remove an SFP module. v You must insert the SFP module into a port before you connect the fiber-optic cable. 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 50 for more information.
Plastic tab Protective cap SFP module Figure 26. 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 27. Plastic tab Protective cap SFP module Figure 27. 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 51.
Plastic tab Protective cap 10 o SFP module Figure 28. 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 29. Wire tab Protective cap o 90 SFP module Figure 29. 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 30. 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 31. 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 DS5020. The cable connector is keyed so it will be inserted into the SFP module correctly. Holding the connector, push in the cable until it clicks into place, as shown in Figure 32. Figure 32. Inserting an LC-LC Fibre Channel cable into an SFP module 5. Remove the two protective caps from the other end of the LC-LC cable.
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 Make sure 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.
In the initial installation of the DS5020, you can add only new storage expansion enclosures to the DS5020 storage subsystem. This means there must be no existing configuration information about the storage expansion enclosures that you want to install.
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 DS5020 Drive Channel 2, port 2 Left ESM Right ESM Left ESM Right ESM Left ESM Right ESM Figure 35.
1. Follow the instructions in the Installation, User’s, and Maintenance Guide for your DS5000 or 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 DS5020. If you are connecting external storage expansion enclosures to the DS5020, make sure that the storage expansion enclosures are populated with at least two drives before you turn on the power.
Important: The DS5020 supports the connection of a maximum of six storage expansion enclosures per redundant drive channel pair. The DS5020 supports one redundant drive channel pair. If you are using fiber-optic cables, install SFP modules into the ports that will receive the cables before installing the cables.
One DS5020 and one storage expansion enclosure If you are cabling one DS5020 storage subsystem to one storage expansion enclosure, Figure 37 shows the correct cabling topology. Note: Figure 37 illustrates the drive channel connections between the DS5020 and the storage expansion enclosures. Do not use Figure 37 as the cabling diagram. Follow the instructions in “DS5020 storage subsystem and supported storage expansion enclosure drive cabling schemes” on page 67 for specific cabling instructions.
One DS5020 and two storage expansion enclosures If you are cabling one DS5020 storage subsystem and two storage expansion enclosures, connect one storage expansion enclosure per controller drive port as shown in Figure 38. Figure 39 on page 61 shows that you can also connect two expansion enclosures together behind a single controller drive port. Although this is technically correct, use the topology as shown in Figure 38.
Important: Do not cable the DS5020 storage subsystem and two storage expansion enclosures as shown in Figure 39. A storage array with the incorrect storage topology might appear to be functional, but incorrect cabling can potentially have unpredictable results. Port 2, drive channel 1 Port 1, drive channel 1 DS5020 Port 1, drive channel 2 Port 2, drive channel 2 1B 1A 1A 1B 1B 1A 1A 1B Figure 39. Incorrect cabling of one DS5020 and two storage expansion enclosures Chapter 3.
One DS5020 and three storage expansion enclosures If you are cabling one DS5020 storage subsystem and three storage expansion enclosures, Figure 40 shows the correct cabling topology. Port 2, drive channel 1 Port 1, drive channel 1 DS5020 Port 1, drive channel 2 Port 2, drive channel 2 1B 1A 1A 1B 1B 1A 1A 1B 1B 1A 1A 1B Figure 40.
One DS5020 and four storage expansion enclosures If you are cabling one DS5020 storage subsystem and four storage expansion enclosures, Figure 41 shows the correct cabling topology. Port 2, drive channel 1 Port 1, drive channel 1 DS5020 Port 1, drive channel 2 Port 2, drive channel 2 1B 1A 1A 1B 1B 1A 1A 1B 1B 1A 1A 1B 1B 1A 1A 1B Figure 41. Cabling for one DS5020 and four storage expansion enclosures Chapter 3.
One DS5020 and up to six storage expansion enclosures If you are cabling one DS5020 storage subsystem and up to six storage expansion enclosures, Figure 42 shows the correct cabling topology. Port 2, drive channel 1 Port 1, drive channel 1 DS5020 Port 1, drive channel 2 Port 2, drive channel 2 1B 1A 1A 1B 1B 1A 1A 1B 1B 1A 1A 1B 1B 1A 1A 1B 1B 1A 1A 1B 1B 1A 1A 1B Figure 42.
Figure 43 on page 66 shows a cabling topology that is incorrect because all six storage expansion enclosures are connected to a single drive port of the dual-ported drive channel in each controller. Chapter 3.
Important: Do not cable the storage subsystem and storage expansion enclosures as shown in Figure 43. A storage array with the incorrect storage topology might appear to be functional, but incorrect cabling can potentially have unpredictable results. Port 2, drive channel 1 Port 1, drive channel 1 DS5020 Port 1, drive channel 2 Port 2, drive channel 2 1B 1A 1A 1B 1B 1A 1A 1B 1B 1A 1A 1B 1B 1A 1A 1B 1B 1A 1A 1B 1B 1A 1A 1B Figure 43.
EXP520s are denoted in the graphic as 1 while the EXP810s are denoted as 2 .) Port 2, drive channel 1 Port 1, drive channel 1 DS5020 Port 1, drive channel 2 Port 2, drive channel 2 EXP520 EXP810 1B 1A 1B 1A 1A 1B EXP520 1A 1B EXP810 1B 1A 1B 1A 1A 1B EXP520 1A 1B EXP810 1B 1A 1B 1A 1A 1B 1A 1B Figure 44.
1. Do not connect a combination of more than six EXP520 or 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. In the DS5020 storage subsystem environment, no more than six EXP520 or EXP810 storage expansion enclosures can be connected to the two ports of a dual-ported drive channel because of the internal drive slots in the DS5020 storage subsystem. 2.
ESM port 1B ESM port 1A ESM A ESM B Last EXP810 storage expansion enclosure EXP810 ESM port 1A ESM port 1A Other storage expansion enclosures ESM port 1B ESM port 1A ESM A ESM B First EXP810 storage expansion enclosure EXP810 Drive channel port ESM port 1A ESM port 1B DS5020 Drive channel port Figure 45. DS5020 drive ports connected to EXP810 ESM ports labeled 1B 13. The DS5020 supports the intermix of SATA and Fibre Channel E-DDMs within the same drive enclosure. Chapter 3.
One DS5020 and one EXP520 storage expansion enclosure Figure 46 shows the cabling scheme for one DS5020 storage subsystem and one EXP520 storage expansion enclosure. Port 2, drive channel 1 Port 1, drive channel 1 DS5020 Port 1, drive channel 2 Port 2, drive channel 2 EXP520 1B 1A 1A 1B Figure 46. Cabling for one DS5020 and one EXP520 storage expansion enclosure Perform the following steps to create the cabling scheme shown in Figure 46: 1.
One DS5020 and two EXP520 storage expansion enclosures Figure 47 shows the cabling scheme for one DS5020 storage subsystem and two EXP520 storage expansion enclosures behind both ports of a dual-ported drive channel. Port 2, drive channel 1 Port 1, drive channel 1 DS5020 Port 1, drive channel 2 Port 2, drive channel 2 EXP520 one 1B 1A 1A 1B EXP520 two 1B 1A 1A 1B Figure 47.
One DS5020 and three or more EXP520 storage expansion enclosures To connect three or more storage expansion enclosures to a DS5020 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.
4. Connect port 1 of drive channel 2 on the DS5020 to port 1B on the right ESM in EXP520 three. 5. Connect port 1B on the left ESM in EXP520 two to port 1 of drive channel 1 on the DS5020. 6. Connect port 1B on the right ESM in EXP520 two to port 2 of drive channel 2 on the DS5020. Figure 49 on page 74 shows the cabling scheme for one DS5020 storage subsystem and four EXP520 storage expansion enclosures behind both ports of a dual-ported drive channel. Chapter 3.
Port 2, drive channel 1 Port 1, drive channel 1 DS5020 Port 1, drive channel 2 Port 2, drive channel 2 EXP520 one 1B 1A 1A 1B EXP520 two 1B 1A 1A 1B EXP520 three 1B 1A 1A 1B EXP520 four 1B 1A 1A 1B Figure 49. One DS5020 and four EXP520 storage expansion enclosures behind a pair of DS5020 drive ports Perform the following steps to create the cabling scheme shown in Figure 49: 1. Connect port 1A on the left ESM in EXP520 one to port 1B on the left ESM in EXP520 three. 2.
5. Connect port 1A on the left ESM in EXP520 two to port 1B on the left ESM in EXP520 four. 6. Connect port 1A on the right ESM in the EXP520 four to port 1B on the right ESM in EXP520 two. 7. Connect port 1B on the left ESM in EXP520 two to port 1 of drive channel 1 on the DS5020. 8. Connect port 2 of drive channel 2 on the DS5020 to port 1B on the right ESM in the EXP520 four.
Port 2, drive channel 1 Port 1, drive channel 1 DS5020 Port 1, drive channel 2 Port 2, drive channel 2 EXP520 one 1B 1A 1A 1B EXP520 two 1B 1A 1A 1B EXP520 three 1B 1A 1A 1B EXP520 four 1B 1A 1A 1B EXP520 five 1B 1A 1A 1B EXP520 six 1B 1A 1A 1B Figure 50.
1. Connect port 1A on the left ESM in EXP520 one to port 1B on the left ESM in EXP520 three. 2. Connect port 1A on the right ESM in EXP520 three to port 1B on the right ESM in EXP520 one. 3. Connect port 1B on the left ESM in EXP520 one to port 2 of drive channel 1 on the DS5020. 4. Connect port 1A on the left ESM in EXP520 three to port 1B on the left ESM in EXP520 five. 5. Connect port 1A on the right ESM in EXP520 five to port 1B on the right ESM in EXP520 three. 6.
Storage expansion enclosure settings This section provides information about storage expansion enclosure settings. For additional detail, refer to the Installation, User’s, and Maintenance Guide for your storage expansion enclosure. Fibre Channel loop and ID settings When you install an E-DDM in the storage expansion enclosure, the E-DDM tray plugs into a printed circuit board called the midplane.
Important: 1. The serial interface ports are intended to be used by service technicians to perform diagnostic operations on the storage subsystem. Incorrect use of the serial port can result in loss of data access and, in some cases, in loss of data. Do not make connections to the serial port unless you do so under the direct supervision and guidance of IBM support personnel. The serial port connection requires a special PS2 DIN to DB9 male converter.
Storage subsystem management methods Before you configure the storage subsystem, determine which method of storage subsystem management you want to use. You can manage the storage subsystems in either of two ways: host-agent (in-band) management or direct (out-of-band) management.
Direct (out-of-band) management method This method uses Ethernet connections from a management station to each controller. You must install at least one management station. The management station can be the host or a workstation on the Ethernet network. A management station will have the client software installed. Attach Ethernet cables to each management station (one pair per storage subsystem). You will connect the cables to each storage subsystem controller later when you install the storage subsystem.
Two storage subsystems Fibre Channel Fibre Channel Host server Two storage subsystems Ethernet network 5 Management station Figure 53. Direct (out-of-band) managed storage subsystems Connecting hosts to the DS5020 using Fibre Channel host ports The DS5020 supports redundant direct attached connections to up to four hosts.
the SFP modules of the host bus adapters. Figure 54 shows the location on the RAID controllers of the DS5020 storage subsystem where the host-system cables connect. Note: DS5020 controllers with four Fibre Channel host ports is shown in the following illustration. The host channel configuration in your DS5020 hardware might differ slightly from the following illustration. Controller A Host ports Host ports Controller B Figure 54. Location of host cables on RAID controllers on the DS5020 3.
Host 1, Host Adapter 1 and 2 Host 2, Host Adapter 1 and 2 Figure 55. Cabling diagram for two redundant host connections For other examples of redundant host configurations, see “Fibre Channel host loop configurations” on page 85. Fibre Channel and iSCSI connections A DS5020 storage subsystem Fibre Channel connection consists of up to four host Fibre Channel loops and a redundant drive Fibre Channel loop. The host Fibre Channel loops provide the fibre path for host attachment.
Fibre Channel host loop configurations You must determine how the host systems will connect to the storage subsystem. You can connect up to four host systems directly to the storage subsystem through Fibre Channel host ports, or you can connect more than four hosts to the Fibre Channel storage subsystem through switches. The illustrations in the following sections show common host system configurations when you connect to the DS5020 Fibre Channel host ports.
In Figure 57, the Fibre Channel switches are connected together via the inter-switch link (ISL) to form a single SAN fabric. Host system with two host adapters Host system with two host adapters Switch Switch Interswitch link DS5020 Figure 57. Example of a single SAN fabric configuration In Figure 58, 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 Switch Switch DS5020 DS5020 Figure 59. Example of two storage subsystems in a dual SAN environment Figure 60 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 DS5020 Figure 60.
Note: The minimum DS5020 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.
Host system with two iSCSI connectors Host system with two iSCSI connectors Gigabit Ethernet switch Ethernet switch DS5020 Figure 62. Example of a multiple-host, multiple-port configuration Figure 63 shows iSCSI and Fibre Channel hosts in a multiple-port configuration.
Figure 64 shows an incorrect configuration of a single host with both iSCSI and Fibre Channel connections. Important: Do not cable the storage subsystem and host systems as shown in Figure 64. A storage subsystem with the incorrect storage topology might appear to be functional, but incorrect cabling can potentially have unpredictable results.
Host 1 with a dual-port Fibre Channel HBA Fibre Channel switch Host 2 with two single-port iSCSI HBAs Fibre Channel switch Gigabit Ethernet switch Gigabit Ethernet switch Fibre Channel ports iSCSI ports Controller A iSCSI ports Controller B Fibre Channel ports DS5020 Figure 65. Example of a multiple-host, multiple-port, multiple-switch configuration Installing the storage subsystem configuration Using the information gathered in the previous sections, install the host systems and host adapters.
92 IBM System Storage DS5020 Storage Subsystem: Installation, User’s, and Maintenance Guide
Chapter 4. Operating the storage subsystem This chapter describes operating procedures for the DS5020. For information about the optimal operation of your system, see “Best practices guidelines” on page 5 Performing the DS5020 Health Check process The DS5020 Health Check process is a sequence of suggested actions developed by IBM to help users verify and maintain the optimal performance of their DS5020 storage configurations.
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.x, you must also upgrade your Storage Manager client to version 10.x or higher. If your host system uses RDAC, upgrading controller firmware from version 6.x to version 7.x might also require host software updates, such as RDAC updates and HBA driver updates.
Make sure that all ESMs are properly seated. Make sure that all drives are properly seated. Make sure that all SFP modules are properly seated. Confirm Fibre Channel cable loop size. (Although IBM specifications require at least 3-inch cable loops, use 6-inch cable loops or longer.) v Make sure that you have proper Fibre Channel cable management. v Make sure there is proper air flow and temperature for all components in your storage configuration.
Note: If the power cords are not connected, turn off both power switches on all modules in the configuration before connecting power cords or turning on the main circuit breakers. 3. If the main circuit breakers are turned off, turn them on. 4. Verify that the link rate setting on the front of the storage expansion enclosure matches the speed of the drives in the subsystem.
d. Review the status of the configuration components shown in the Subsystem Management window by selecting the applicable component button for each storage subsystem. 8. Are the LEDs indicating normal operation, and is the status Optimal on all the configuration components? v Yes — End of procedure. v No — Go to step 9. 9. Diagnose and correct the fault by completing the following steps. a.
http://www.ibm.com/systems/support/storage/disk Before any planned system shutdown or after any system additions, removals, or modifications (including firmware updates, logical drive creations, storage partitioning definitions, hardware changes, and so on), save the storage subsystem profile as explained in the DS Storage Manager guide for your operating system. Save the profile in a location other than the logical drives created for the DS5020.
of a hard disk drive exceeding its PFAs), the Needs Attention LED does not turn on. Only the DS Storage Manager client can detect the failure. For example, the recovery procedure for a Predictive Failure Analysis® (PFA) flag (impending drive failure) on a drive varies depending on the drive status (hot spare, unassigned, RAID level, current logical drive status, and so on).
http://www.ibm.com/systems/support/storage/disk Always check the readme files that are included with the firmware packages for the most up-to-date information about firmware prerequisites, firmware update instructions, and host I/O restrictions, if any. Apply the necessary updates before configuring the storage subsystem arrays and logical drives.
6. Check the indicator LEDs on the front and the back of the storage expansion enclosure. A green LED denotes a normal status; an amber LED denotes a hardware fault. 7. Is an amber LED on? v Yes - Locate and troubleshoot the failed components. See “Checking the LEDs.” v No - You are finished with this procedure. If you are still experiencing a problem with this storage subsystem, create, save, and print a storage subsystem profile. This information might be helpful when troubleshooting.
Direct current enabled LED Service action required Service action allowed (fault) LED (ok to remove) LED Power supply and fan unit power LED Power supply and fan unit power LED Service action allowed Service action required (fault) LED (ok to remove) LED Direct current enabled LED Figure 66. Power supply and fan unit LEDs Table 12.
Drive activity LED Drive fault LED Global locate LED Global Global Link summary power rate fault LED switch LED Figure 67. Front LEDs and controls Table 13.
Battery charging LED Service action Service action required allowed (ok to (fault) LED remove) LED Service action allowed (ok to remove) LED Service action required (fault) LED Battery charging LED Figure 68. Battery unit LEDs Table 14.
Diagnostic Heartbeat LED LED Service action allowed LED Host channel speed - L1 LED Service Cache action required active LED LED Host channel speed - L2 LED Drive channel port bypass LED Drive channel speed LED Ethernet link activity LED Ethernet link speed LED Figure 69.
Note: The iSCSI ports have the same LEDs as the management Ethernet ports. As with the Ethernet port LEDs, the iSCSI port LEDs represent link speed and link activity. Diagnostic Heartbeat LED LED Service action allowed LED Host channel speed - L1 LED Service Cache action required active LED LED Host channel speed - L2 LED Drive channel port bypass LED Drive channel speed LED Ethernet link activity LED Ethernet link speed LED Figure 71.
Table 15. Rear controller LEDs, controls, and connectors (continued) LED Normal Status Problem Status Ethernet Link Activity On - link established Not applicable Off - no link established Blinking - activity Drive Channel Port Bypass Off On - No valid device detected and port is bypassed (Also off if no SFP (One LED per port) connected) Note: The drive channel consists of two FC ports. This LED indicates the drive port bypass status of one of the two FC ports that comprise a drive channel.
Diagnostic LED Seven-segment display Figure 72. Numeric display LEDs When you turn on the power to the storage subsystem, the seven-segment LEDs show 88 before the boot firmware starts to run. After the boot code starts, - - is displayed. When the storage subsystem is operating normally, the numeric display shows the enclosure identification (enclosure ID) of the storage subsystem. If an error has occurred and the Needs Attention LED is on, the numeric display shows diagnostic information.
Table 17. Numeric display diagnostic codes (continued) Value Controller State Description LA Suspended Reserved LB Suspended Host card configuration error LC Suspended Persistent cache backup configuration error LD Suspended Mixed cache memory DIMMs LE Suspended Uncertified cache memory DIMM sizes LF Suspended Lockdown with limited SYMbol support LH Suspended Controller firmware mismatch Powering off the storage subsystem The DS5020 is designed to run continuously.
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 CAUTION: This unit has more than one power source. To remove all power from the unit, all MAINS must be disconnected.
Use the following procedure to turn off power to one or more storage subsystems for a planned shutdown. To turn off power for an unplanned shutdown, see “Restoring power after an unexpected shutdown” on page 112. Before proceeding, use the Storage Manager client to determine the status of the system components and special instructions. The operating system software might require you to perform other procedures before you turn off the power. 1. Stop all I/O activity to each storage subsystem. 2.
9. Turn off both power switches on the back of each storage expansion enclosure in the configuration. CAUTION: The power switch on the power supply and fan unit does not turn off the electrical current supplied to the device. The DS5020 storage subsystem might also have more than one connection to ac power. To remove all electrical current from the device, ensure that all ac power cords are disconnected from the power supply and fan unit ac input connectors. 10.
Risk of severe electrical shock – Never turn on the power to any equipment if there is evidence of fire, water, or structural damage. Doing so might cause severe electrical shock 1. After the emergency situation is over or power is restored, visually check the storage subsystem for damage. Is there evidence of damage to any of the storage subsystem components, cables, or equipment attached to the storage subsystem? v Yes – Do not continue with this procedure.
Recovering from an overheated power supply and fan unit Each storage subsystem contains two power supply and fan units. Each power supply and fan unit contains a built-in temperature sensor designed to prevent it from overheating. Under normal operating conditions, with an ambient air temperature range of 10° C to 35° C (50° F to 95° F), the fans in the power supply and fan units maintain a proper operating temperature inside the module.
v Yes - Go to step 4. v No - Perform the procedure “Troubleshooting the storage subsystem ” on page 100 to verify that the power supplies have shut down because of an overheating problem, and then go to step 4. 4. Stop I/O activity to the storage subsystem and all attached storage expansion enclosures. 5.
10. Check the status LEDs on the front and back of the storage subsystem. a. Note the status of the LEDs on the front and back of each module. A green LED indicates a normal status; amber LEDs indicate a hardware fault. b. Open the Subsystem Management window for the storage array. c. Select the applicable components button for each module in the Physical View of the Subsystem Management window to view the status of its components. The status for each component is either Optimal or Needs Attention. 11.
If caching is enabled and the Cache Active LED never comes on during I/O activity, it indicates one of the following conditions: v The cache memory from either controller A or controller B has failed. v The cache sizes in controller A and controller B are not the same. v The battery has failed. (In this case, one or both of the green Battery LEDs will be off and one or both amber Battery Needs Attention LEDs will be lit.
Statement 2: CAUTION: When replacing the lithium battery, use only an equivalent type battery recommended by the manufacturer. If your system has a module containing a lithium battery, replace it only with the same module type made by the same manufacturer. The battery contains lithium and can explode if not properly used, handled, or disposed of.
interruption is caused if you remove the battery from the controller chassis, reset the power to the storage subsystem, or if a storage expansion enclosure or battery overheats. Data caching starts after the battery is charged to the programmed voltage level, which occurs when the storage subsystem power is first turned on, when a new battery is installed to replace a failed battery, or when the subsystem power is turned on after months of inactivity.
120 IBM System Storage DS5020 Storage Subsystem: Installation, User’s, and Maintenance Guide
Chapter 5. Replacing components This chapter contains information about replacing a controller, E-DDM CRU, 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 DS5020 storage subsystem identifies failed components. Handling static-sensitive devices Attention: Static electricity can damage electronic devices and your system.
The Service Action Allowed status LED automatically turns on or off as conditions change. Wait at least two minutes after you replace each component for the controller to recognize the new component and update the LED status. In most cases when a single component fails, the Service Action Allowed status LED turns on steadily when the Needs Attention status LED is turned on for the component.
5. Unpack the new controller. Save all packing materials in the event you need to return the new controller. 6. Determine whether the replacement controller will serve as controller A or controller B (controller A is inserted in the left controller bay; controller B is inserted in the right controller bay), and then apply the controller labels for host channels, drive channels, and numeric display to the replacement controller.
a. Remove the LC-LC Fibre Channel cable from the SFP module. For more information, see “Handling fiber-optic cables” on page 47. b. Unlock the SFP module latch: v For SFP modules that contain plastic tabs, unlock the SFP module latch by pulling the plastic tab outward 10°, as shown in Figure 75. Plastic tab Protecti ve cap 10 o SFP module Figure 75.
125 shows the controller sliding from the storage subsystem chassis. Lever Figure 77. Removing a controller from the DS5020 10. If the new controller does not have the cache battery backup unit already installed, follow the instructions in “Replacing a battery unit” on page 144 to remove the cache backup battery from the existing controller unit and insert it into the new controller CRU. 11. Install the new controller. a. Slide one controller into the empty slot in the storage subsystem.
B controller bay to fully latch it into place. Do not force fit. The controller is designed to prevent it from being inserted into the chassis incorrectly. Attention: Make sure that the levers lock into place in the storage subsystem chassis. c. Repeat step 11a on page 125 and step 11b on page 125 to replace the second controller. 12. Wait up to 5 minutes for the DS Storage Manager client software to recognize the new controller. 13.
v Blank trays: A storage subsystem without a full set of E-DDMs (16) contains blank trays in the unused drive bays. Before installing new E-DDMs, you must remove these empty trays. Save the empty trays for future use. Each of the 16 bays must always contain either a blank tray or a hot-swap E-DDM. For proper cooling and EMC protection, do not leave a drive slot open without either a drive blank or an E-DDM CRU inserted.
v E-DDM CRUs are not interchangeable between the DS5020 and other DS4000 storage subsystems. Table 18. Drive LED activity LED LED state Descriptions Activity LED Flashing green The green LED flashes to indicate Fibre Channel activity to the drive. Activity LED Steady green The green LED lights to indicate that the drive is properly installed and is spun up by the DS5020 controller. Fault LED Flashing amber The amber LED flashes to indicate that a drive has been identified by the software.
Figure 79. 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 an 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 might cause undesired events. 8. Use the DS 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 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. If you have more than 10 E-DDMs or arrays that are comprised of high capacity SATA E-DDMs, consider replacing all E-DDMs at the same time. v How much risk of losing data is acceptable.
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. Make sure of the following: 1) All of the green Drive activity LEDs on the front of the storage subsystem (and on all attached storage expansion enclosures) are not flashing. 2) The green Cache active LEDs are off. b.
a. Turn on the power to the supporting devices (for example, Ethernet switches and management stations) before you turn off power to the storage subsystem. b. You must turn on the storage expansion enclosures before the storage subsystem. The controllers might not recognize the correct configuration if the E-DDMs are powered up after the storage subsystem. For instructions on powering up the storage subsystem, see the storage subsystem documentation. c.
Read all precautionary notes, kit instructions, and other information. Kit instructions often contain the most current information regarding the E-DDMs and their installation, plus upgrade or servicing procedures. Compare the kit instructions with this procedure to determine if you need to modify this procedure. 2. Use the DS Storage Manager software to check the status of the unit. Correct any problems that are reported. 3.
Note: The Drive fault LEDs might flash intermittently while the E-DDMs spin up. v If the Drive activity LED is off, the E-DDM CRU might not be installed correctly. Remove the E-DDM CRU, wait 30 seconds, and then reinstall it. 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 DS Storage Manager software for problem determination.
CAUTION: Do not change the link rate setting while the storage subsystem is running. Changing the link rate setting while the storage subsystem is running could cause drives to fail. You must power down the storage subsystem and storage expansion enclosures before changing the link rate setting.
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. Important: Make sure that the link rate for the DS5020 is always set to 4 Gbps. The DS5020 supports only 4 Gbps FC drives. 3. Is the data transfer rate set correctly? Note: Make sure that the link rate for the DS5020 is always set to 4 Gbps. v Yes - Go to step 8. v No - Go to step 5 to change the setting.
c. When the procedure is completed, rerun the Recovery Guru to make sure that the problem has been corrected by selecting Recheck in the Recovery Guru. 11. If the problem persists, contact IBM Customer and Technical Support. Replacing 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.
units in the unit will automatically shut down (an over-temperature condition). If this occurs, you must cool the unit and restart it. See “Restoring power after an unexpected shutdown” on page 112. Attention: The fans in the power supply and fan units draw in fresh air and force out hot air.
4. Unpack the new power supply and fan unit. Save all packing material in case you need to return the failed power supply and fan unit CRU. 5. 6. 7. 8. Note: The new power supply and fan unit CRU comes with an instruction sheet and label sheet. The instruction sheet provides instructions on placing the applicable labels on the 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 power supply and fan unit CRU.
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 DS5020 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 battery unit Statement 2: CAUTION: When replacing the lithium battery, use only an equivalent type battery recommended by the manufacturer.
1. Use the DS Storage Manager client software to print a storage subsystem profile. 2. Locate the RAID controller that contains the failed battery unit. 3. Check the LEDs on the battery units to determine which of the two battery units has failed. (See “Battery unit LEDs” on page 103.) Replace only the battery unit that is indicated as failed by the LEDs. 4. Put on antistatic protection. 5.
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. Alternatively, you can return Lithium, Lithium Ion and Lithium Ion battery packs to IBM for recycling.
DANGER Some laser products contain an embedded Class 3A or Class 3B laser diode. Note the following. Laser radiation when open. Do not stare into the beam, do not view directly with optical instruments, and avoid direct exposure to the beam.
Attention: Handle and install fiber-optic cables properly to avoid degraded performance or loss of communications with devices. For specific handling guidelines, see “Handling fiber-optic cables” on page 47. 6. 7. 8. 9. Disconnect the interface cables from the SFP module. Remove the failed SFP module from the controller. Install the new SFP module into the controller. Reconnect the interface cable. Figure 85. Replacing an SFP module 10. Check the Bypass and Fault LEDs for the new SFP module. 11.
Replacing a midplane 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 Attention: Observe handling static-sensitive device precautions stated in “Handling static-sensitive devices” on page 29 when removing components.
a. Squeeze the latch and pull the lever open 90° (so that the lever is horizontal) to release the power supply and fan unit from the latch. The latch is a coral colored tab on the lever. b. Slowly pull the lever away from the chassis to remove the power supply and fan unit, as shown in Figure 17 on page 39. (Remove the power supply and fan unit from the chassis and place it on ESD protected surface.
≥ 18 kg (39.7 lb) ≥ 32 kg (70.5 lb) ≥ 55 kg (121.2 lb) CAUTION: Use safe practices when lifting. Pull the chassis outward from the front of the rack and remove from the rack. Place it on a level surface. Look for a row of three Phillips screws on top of the chassis and a row of four Phillips screws on the bottom of the chassis, as shown in Figure 87. Remove the seven Phillips screws using the #1 Phillips screwdriver. Save these screws. Scre ws Scre ws Figure 87.
15. Insert the new front cage plane/midplane by aligning it with the storage subsystem front opening and slowly sliding it into the storage subsystem chassis. Make sure that the front cage frame EMC gaskets do not snag between the frame and chassis. 16. Tighten the four front cage frame screws. See Figure 86 on page 150. 17.
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 xxiv.
Table 20. 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 DS5020 storage subsystem. (For FRU part numbers, see Table 21 on page 161.
Table 20. 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 DS5020 Storage Subsystem Management window and click on the Recovery Guru to see problems in the DS5020 configuration.
Table 20. 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 20. 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 20. Symptom-to-FRU index (continued) Problem indicator Component Intermittent or Some or all sporadic power CRUs loss to the storage subsystem Possible cause Possible solutions Defective ac power source or improperly connected power cable Check the ac power source. Reseat all installed power cables and power supplies. If applicable, check the power components (power units or universal power supply). Replace defective power cables. Drives are part of an exported array.
Table 20. Symptom-to-FRU index (continued) Problem indicator Unable to access drives Random errors Component Possible cause Possible solutions Drives and Fibre Channel loop Incorrect storage subsystem ID settings Make sure that the Fibre Channel optical cables are undamaged and properly connected. Check the storage subsystem ID settings. Note: Change the switch position only when your storage subsystem is powered off. RAID controller failure Replace one or both RAID controllers.
Table 20. Symptom-to-FRU index (continued) Problem indicator Component Storage expansion Storage enclosures are not subsystem attached to the storage subsystem Possible cause Possible solutions The DS5020 does not have the necessary feature options to support the storage expansion enclosures. The base DS5020 storage subsystem supports up to 32 drives, which includes 16 drives in the DS5020 chassis and the 16 more drives if an EXP520 storage expansion enclosure is attached.
Table 21.
Table 21. Parts listing (DS5020 storage subsystem) (continued) Index DS5020 storage subsystem CRU P/N 8 E-DDM, 4 Gbps FC, 146.8 GB, 15,000 RPM drive module 40K6823 E-DDM, 4 Gbps FC, 300 GB, 15,000 RPM drive module 42D0417 E-DDM, 4 Gbps FC, 450 GB, 15,000 RPM drive module 44X2451 E-DDM, 4 Gbps FC, 600 GB, 15,000 RPM drive module 59Y5336 E-DDM, 4 Gbps FC, encryption-capable, 146.
Appendix A. Records Whenever you add options to your DS5020, 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 22 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 23 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 23. 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 24.
Appendix B. Rack mounting templates This appendix provides duplicate copies of the rack mounting templates. If you want to tear out the templates from this document, use these copies rather than those provided in “Installing the support rails” on page 32. Use the following templates (Figure 89 on page 168 and Figure 90 on page 169) to identify the proper locations for inserting M5 screws when mounting the support rails and DS5020 to a rack. The locations for the M5 screws are highlighted in the templates.
Figure 89.
3U 3U DS5020 REAR Rack Mounting Template 2U 2U Rail mounting guide 1U 1U Rail assembly (Rear Left) Rail assembly (Rear right) ® Printed in the U.S.A 0U 0U Figure 90. Rear rack mounting template Appendix B.
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Appendix C. Specifications for non-IBM rack installation The following instructions provide safety requirements and rack specifications for installing DS5000 storage subsystems and DS5000 storage expansion enclosures into non-IBM racks. Note: The information in this section applies to 19–inch racks. It is your responsibility, working with your rack manufacturer, to ensure that the non-IBM rack chosen meets the safety requirements and specifications listed in this section.
3. There must be an accessible and unambiguous disconnect device for each product in the rack, including any power distribution unit. A disconnect device might consist of either the plug on the power cord (if the power cord is no longer than 1.8 m (6 ft.)), the appliance inlet receptacle (if the power cord is of a detachable type), or a power on/off switch, or an Emergency Power Off switch on the rack, provided all power is removed from the rack or product by the disconnect device.
There must be no unique maintenance procedures or tools required for service. 11. Elevated service installations, where the product(s) to be serviced are installed between 1.5 m and 3.7 m (5 ft. and 12 ft.) above the floor, require the availability of an OSHA- and CSA-approved nonconductive step ladder. If a ladder is required for service, the customer must supply the OSHA- and CSAapproved nonconductive step ladder (unless other arrangements have been made with the local IBM Service Branch Office).
571 mm (22.50 in.) Back, No Door 203 mm (8.0 in.) Drawer Rail Mounting Flanges 719 mm (28.31 in.) 494 mm (19.45 in.) 51 mm (2.01 in) Front, No Door nonibm_topview 451 mm (17.46 in.) 494 mm (19.45 in.) Figure 91. Top View of non-IBM Rack Specifications Dimensions Top view of non-IBM rack specifications dimensions The vertical distance between mounting holes must consist of sets of three holes spaced (from bottom to top) 15.9 mm (0.625 in.), 15.9 mm (0.625 in.), and 12.67 mm (0.5 in.
Top Front of Rack 6.75 mm min. 15.9 mm 15.9 mm 15.9 mm 15.9 mm 12.7 mm 12.7 mm 15.9 mm 15.9 mm 15.9 mm 15.9 mm 12.7 mm 12.7 mm nonibm_topfront EIA Hole Spacing 6.75 mm min. 450 +/- 0.75 mm Rack Front Opening Hole Diameter = 7.1 +/- 0.1 mm 465 +/- 0.8 mm Rack Mounting Holes Center-to-Center Figure 92. Rack specifications dimensions, top front view Hole Diameter = 7.1 +/- 0.1 mm 465 +/- 0.8 mm Rack Mounting Holes Center-to-Center 12.7 mm 12.7 mm 15.9 mm 15.9 mm 15.9 mm 15.9 mm 12.
For example, a four EIA drawer will have a maximum drawer weight of 63.6 kg (140 lb.). 3. AC or dc power drawers need to be support based on equipment purchased for the rack or cabinet. It is strongly recommended that you use a power distribution unit that meets the same specifications as each unit already installed in the rack. Each power distribution unit needs a dedicated power line.
inlet temperature as specified in the server specifications. The perforations should yield at least 34 percent minimum open area per square inch. Appendix C.
178 IBM System Storage DS5020 Storage Subsystem: Installation, User’s, and Maintenance Guide
Appendix D. 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 25. IBM power cords (continued) 180 IBM power cord part number Feature code 39Y7917 9820 Power Cord (250v, 10A, 2.
Table 25. IBM power cords (continued) IBM power cord part number Feature code 39Y7923 9825 Power Cord (250v, 10A, 2.
182 IBM System Storage DS5020 Storage Subsystem: Installation, User’s, and Maintenance Guide
Appendix E. Additional DS5020 documentation For educational information about the DS5020 and other IBM System Storage products, go to http://ibmdsseriestraining.com/. The following tables present an overview of the IBM System Storage DS 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.
Table 26.
DS4800 storage subsystem library Table 28 associates each document in the DS4800 storage subsystem library with its related common user tasks. Table 28.
DS4700 storage subsystem library Table 29 associates each document in the DS4700 storage subsystem library with its related common user tasks. Table 29.
DS4500 storage subsystem library Table 30 associates each document in the DS4500 (previously FAStT900) storage subsystem library with its related common user tasks. Table 30.
DS4400 storage subsystem library Table 31 associates each document in the DS4400 (previously FAStT700) storage subsystem library with its related common user tasks. Table 31.
DS4300 storage subsystem library Table 32 associates each document in the DS4300 (previously FAStT600) storage subsystem library with its related common user tasks. Table 32.
DS4200 Express storage subsystem library Table 33 associates each document in the DS4200 Express storage subsystem library with its related common user tasks. Table 33.
DS4100 Storage subsystem library Table 34 associates each document in the DS4100 (previously FAStT100) storage subsystem library with its related common user tasks. Table 34.
DS5000 and DS4000 storage expansion enclosure documents Table 35 associates each of the following documents with its related common user tasks. Table 35.
Other DS5000 and DS4000-related documents Table 36 associates each of the following documents with its related common user tasks. Table 36.
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Appendix F. Accessibility This section provides information about alternate keyboard navigation, which is a DS 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 37. DS 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 subsystem 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.
European Union EMC Directive conformance statement This product is in conformity with the protection requirements of EU Council Directive 2004/108/EC on the approximation of the laws of the Member States relating to electromagnetic compatibility. IBM cannot accept responsibility for any failure to satisfy the protection requirements resulting from a nonrecommended modification of the product, including the fitting of non-IBM option cards.
IBM verändert bzw. wenn Erweiterungskomponenten von Fremdherstellern ohne Empfehlung der IBM gesteckt/eingebaut werden. EN 55022 Klasse A Geräte müssen mit folgendem Warnhinweis versehen werden: “Warnung: Dieses ist eine Einrichtung der Klasse A. Diese Einrichtung kann im Wohnbereich Funk-Störungen verursachen; in diesem Fall kann vom Betreiber verlangt werden, angemessene Maßnahmen zu ergreifen und dafür aufzukommen.
Glossary This glossary provides definitions for the terminology and abbreviations used in IBM System Storage DS5000 and DS4000 publications. adapter. A printed circuit assembly that transmits user data input/output (I/O) between the internal bus of the host system and the external Fibre Channel link and vice versa. Also called an I/O adapter, host adapter, or Fibre Channel adapter.
Standard Architecture (ISA) system bus on the IBM PC AT computer. Equivalent to integrated drive electronics (IDE). CRT. See cathode ray tube. 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). CRU. See customer replaceable unit.
interface (FC-SCSI) hardware path ID. It is required to be the same for all SCSI targets logically connected to an Fibre Channel adapter. 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.
Fibre Channel Protocol (FCP) for small computer system interface (SCSI). A high-level fibre-channel mapping layer (FC-4) that uses lower-level fibre-channel (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. graphics, pointing devices, menu bars and other menus, overlapping windows, icons, and the object-action relationship. field replaceable unit (FRU).
(EISA) further expanded the data path to 32 bits. See also Extended Industry Standard Architecture. 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.
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Index A a hot-swap E-DDM replacing 130 a hot-swap hard disk drive replacing 130 about this document xix ac power cords and receptacles 24 ac power recovery 23 ac power requirements 23 ac power supply cabling 91 ac power supply and fan unit replacing 43, 139 ac power supply and fan unit, removal ac site wiring requirements 23 accessible documentation 199 acoustical noise emission values 22 airflow 13, 21, 24 altitude ranges 21 area requirements 19 audience xix 38 B battery LEDs 117 replacing 117 battery un
D data sheet 164 devices, installing and replacing 121 DHCP server sample network 11 diagnostic interface port 79 direct management method 81 document organization xix documentation DS Storage Manager 183 DS4000-related documents 193 DS4100 SATA storage subsystem 191 DS4200 Express storage subsystem 190 DS4300 Fibre Channel storage subsystem 189 DS4400 Fibre Channel storage subsystem 188 DS4500 storage subsystem 187 DS4800 storage subsystem 185, 186 DS5020 183 DS5020 documents 193 DS5020 storage subsystem 1
Health Check process 93 heat dissipation 21 heat output 24 host adapter, connecting to RAID controller host-agent management method 80 hot swap drive bays 7 drive LED activity described 128 hardware 128 hot-swap E-DDMs installing 128 replacing 44 hot-swap hard disk drives 126 installing 128 replacing 44 hub See managed hub 82 I IBM Safety Information 193 IBM System Storage DS5020 battery unit 15 battery unit LEDs 103 cache memory and cache battery 116 Health Check process 93 installing the configuration 91
power supply and fan units (ac) description 13 power-fan canister recovering from shutdown 114 power, restoring after an emergency 112 powering off for planned shutdown 109 powering on after planned shutdown 95 after power supply shutdown 114 at initial startup 95 problem determination 153 product ID 99 product overview 1 R rack cabinet EIA 310-D Type A 19 inch 34 preparatory procedures 32 rail installation 34 site preparation 30 rack mounting template for DS5020 167 RAID controller cache battery 117 conne
storage subsystem configuration saving 6 storage subsystem configuration, installing storage subsystem profile saving 6 submodel ID 99 support code upgrades software and firmware 18 support notifications 5 switch technical support Web site xxv 91 T tasks by document title 183 tasks by documentation title 183 temperature and humidity 20 temperature, maximum 114 template, rack mounting 167 trademarks 197 troubleshooting 153 no power 114 overheating problem 114 procedure 100 turning off power for planned shu
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Part Number: 49Y0289 Printed in USA (1P) P/N: 49Y0289
