user’s guide hp StorageWorks disk system 2405 Edition E0902 .
Notice Trademark Information © Hewlett-Packard Company, 2002. All rights reserved. Red Hat is a registered trademark of Red Hat Co. A6250-96020 Hewlett-Packard Company makes no warranty of any kind with regard to this material, including, but not limited to, the implied warranties of merchantability and fitness for a particular purpose.
Revision History First Edition March 2002 Second Edition June 2002 Third Edition Sept 2002
contents 1 Product Description 13 General Description 13 Features 14 Status Indicators 15 Power/Standby Switch 15 High Availability 15 Upgradability 16 Environmental Services 16 Components 17 Disks and Disk Fillers 17 LCCs 18 Power Supply/Fan Module 21 Hardware/Software Requirements 23 Topologies 23 Single Host Basic Configuration 24 Single Host PV Links Configuration 25 Two Host High Availability Configuration 26 Four Host Hub Configuration 27 Definitions 28 2 Installation 31 Preparation 31 Electrical
Step 3: Install the device 41 Installing the Storage Device into a Rack System/E 41 Installing the storage device into an HP Computer Cabinet 49 Installing the Storage Device into a Rittal-Style Rack 56 Install the Disk System 63 Step 4: Configure LCCs 64 Step 5: Set LCC Switches 66 Step 6: Connect FC and Power Cables 72 Step 7: Install Disk Modules 75 Step 8: Turn on the Disk System 76 Step 9: Verify Devices on the Host 78 Sample IOSCAN 78 Where do you go from here? 79 3 Configuration 81 Viewing a Disk S
5 Removal and Replacement 109 Disk Module 111 Preparation 111 To Determine If a Volume Group or Physical Volume Group Is Active 111 To Determine If the Physical Volume Is Attached 112 To Replace Attached Physical Volumes 112 To Replace Unattached Physical Volumes 114 Tools 115 Procedure 115 LCC 117 Tools 117 Procedure 117 Power Supply 120 Tools 120 Procedure 120 Disk System 122 Tools 122 Procedure 122 Top Cover (HP-Qualified Only) 124 Tools 124 Procedure 124 Midplane (HP-Qualified Only) 126 Tools 126 Proce
Heat Output 133 Environment 134 Acoustics 134 Safety Certifications 134 EMC Compliance 135 Regulatory Statements 136 A. FCC Statement (For U.S.A. Only) 136 B. IEC Statement (Worldwide) 136 C. Spécification ATI Classe A (France) 137 D. Product Noise Declaration (Germany) 137 E. VCCI Statement (Japan) 138 Harmonics Conformance (Japan) 138 F. BSMI EMC Statement (Taiwan) 138 G.
figures Figure 1 Figure 2 Figure 3 Figure 4 Figure 5 Figure 6 Figure 7 Figure 8 Figure 9 Figure 10 Figure 11 Figure 12 Figure 13 Figure 14 Figure 15 Figure 16 Figure 17 Figure 18 Figure 19 Figure 20 Figure 21 Figure 22 Figure 23 Figure 24 Figure 25 Figure 26 Figure 27 Figure 28 Disk System Front View 14 Disk System Back View 14 Disk Module 18 LCC 19 Power Supply/Fan Module 21 Single Initiator Basic Configuration 24 Single Host PV Links Configuration 25 Two Host High Availability Configuration 26 Four Host
Figure 29 Figure 30 Figure 31 Figure 32 Figure 33 Figure 34 Figure 35 Figure 36 Figure 37 Figure 38 Figure 39 Figure 40 Figure 41 Figure 42 Figure 43 Figure 44 Figure 45 Figure 46 Figure 47 Figure 48 Figure 49 Figure 50 Figure 51 Figure 52 Figure 53 Figure 54 Figure 55 Figure 56 Figure 57 Figure 58 Figure 59 Figure 60 Figure 61 Figure 62 Figure 63 10 Installing a filler panel in an HP Computer Cabinet 55 Rittal-Style Rail Kit Contents 56 Rail Alignment 57 Front Screw Installation 57 Rear Slide Extension 5
tables Table 1 Table 2 Table 3 Table 4 Table 5 Table 6 Table 7 Table 8 Table 9 Table 10 Table 11 Table 12 Table 13 Table 14 Table 15 Table 16 Table 17 Table 18 Inrush (Surge) Current and Duration 31 Maximum Operating Current 32 Recommended PDU/PDRUs for Multiple Disk Systems in HP Legacy Racks 33 Recommended PDU/PDRUs for Multiple Disk Systems in HP System/E Racks 33 Disk System Accessories 38 Disk System Contents 39 Rail Positions for Sequential Disk Systems 43 Loop IDs and Hardware Paths by Slot Number
Product Description 1 General Description Hewlett-Packard’s StorageWorks Disk System 2405 (referred to in this guide as the disk system) is a high-availability Fibre Channel (FC) storage product. Dual optical fiber ports on dual link controllers provide Fibre Channel connections to the host. Fifteen slots accept high-speed, high-capacity FC disks connected to a FC midplane. Data throughput is 200 Mbytes/sec. Thirteen disk systems fill a 2-meter System/E rack.
Status Indicators On the front of the disk system, a pair of LEDs indicates the status of the disk system, and an LED for each slot shows disk I/O activity: ■ The system power LED (B in Figure 1) indicates that power is on or off. ■ The system fault LED (C in Figure 1) indicates whether or not a fault has occurred anywhere in the disk system. ■ At the bottom of each disk module, the left LED (D in Figure 1) indicates the presence of I/O activity on the disk.
Upgradability You can increase disk system storage capacity by: ■ Replacing disk drives with higher-capacity disk drives ■ Adding disks in unused slots ■ Adding another disk system to a FC loop None of these actions require shutting down the product, but some may require the use of system utilities to manage file systems. Disk and LCC firmware is downloadable using the supported tools.
Product Description Components User-replaceable components enable high availability and easy maintenance. This section describes the following components: ■ Disks and disk fillers ■ LCCs ■ Power supply/fan modules Disks and Disk Fillers Disks, shown in Figure 3, are 3.5-inch Low Profile disks in open metal carriers. Disks are Fibre Channel. The open carrier design requires careful handling to avoid disk damage by breakage and static electricity. Avoid personal contact with hot surfaces.
Figure 4. LCC Product Description Other features of the LCC are: ■ LEDs (D) indicating LCC status and bus configuration ■ Rotary switch (E) ■ Configuration switch with four settings: 1 Link Speed (1.0625 Gb/s or 2.
LCC circuitry provides the following functions: ■ System fault detection ■ Disk address generation Caution 20 Product Description If an LCC fails, do not remove it from the disk system until you are ready to replace it with a new one. The failed LCC should remain installed to assure proper cooling for the disk system.
Power Supply/Fan Module Figure 5. Power Supply/Fan Module Product Description 21 Product Description Redundant, hot-pluggable 340-watt power supplies convert wide-ranging AC voltage from an external main to stable DC output and deliver it to the midplane. Each power supply has an internal fan, an AC receptacle (A in Figure 5), two ejector handles (D) with thumbscrews (C), and 2 LEDs (B).
Power supplies share the load reciprocally; that is, each supply automatically increases its output to compensate for reduced output from the other, and vice versa. If one power supply fails, the other delivers the entire load. Internal circuitry triggers a fault when the internal fan or other part fails. At the same time, the power fault LED (amber) illuminates, and, if enabled, the hardware event monitor sends an event message.
The disk system is supported on the following operating systems: ■ HP-UX 11.00 with HWE 0302 or greater ■ HP-UX 11.11 with HWE 0302 or greater For supported servers, see the latest HP 9000 Configuration and Ordering Guide.
Single Host Basic Configuration The maximum number of disk systems supported on a Fibre Channel Arbitrated Loop (FC-AL) is seven. The maximum storage capacity with this configuration is approximately 7.5 Terabytes (105 disk modules at the 73 Gbyte capacity point). This configuration does not provide any redundancy to the data path, however there is some hardware redundancy provided by the enclosures themselves (power supplies).
Single Host PV Links Configuration Product Description 25 Product Description Data path redundancy can be achieved with the configuration shown in Figure . Using an additional host bus adapter and the LVM software, pvlinks can be created to provide a redundant path to data. A separate mirror path can be created for data protection, also. This configuration protects against any single component failure (cables, HBAs, disks).
Two Host High Availability Configuration Figure 8 shows a basic high availability configuration. Each disk system can still be configured using pvlinks and mirroring. High availability software protects against a disk system failure. A failure in a cable or LCC will result in a loop failure. Adding FC-AL loops or switches makes this configuration more robust.
Four Host Hub Configuration The performance of this configuration is limited to a maximum of 200MB/s (100 MB/s per loop). The performance issues discussed with the single initiator basic configuration also apply with this configuration. Product Description 27 Product Description The disk system can run at 2 Gb/s speed. For legacy systems a four host configuration could be used for an advanced high availability environment at 1 Gb/s speed. See Figure 9, below.
Definitions The following terms have specific meanings in the context of this guide: High availability (HA) HA describes hardware and software systems that are designed to minimize planned and unplanned downtime. High availability is measured at the system level and stated as the percentage of time the system is in a state to do useful work; for example, 99.95% availability translates to four hours of downtime per year.
Multimode Arbitrated Loop (FC-AL) A Fibre Channel topology that provides a low-cost solution to attach multiple communicating ports in a loop without hubs and switches. Arbitrated Loop Physical Address (AL_PA) A unique one-byte valid value assigned during Loop Initialization to each NL_Port or FL_Port on a Loop. Product Description 29 Product Description A type of fiber optic cable that allows more than one mode (rays of light) to be guided.
Product Description
2 Installation Preparation Before installing the disk system, make sure (1) electrical wiring, breakers, and PDUs meet power needs, (2) the required support software is installed on the host, and (3) if you are connecting the disk system to a V-class server, autotermination is enabled on the host bus adapter. This section covers all three of these topics.
Table 2. Maximum Operating Current Incoming Voltage AC RMS Maximum RMS Current Drawn by One Disk System 100 – 120 volts 4.8 amps 200 – 240 volts 2.0 amps Caution Adding disk systems to 120V circuits rapidly increases amp requirements. Always make sure that the total current drawn does not exceed circuit capacity. Circuit breakers must be adequately rated for inrush and operating currents.
nominal power and redundant PDU/PDRUs. For nonredundant configurations, divide the number of recommended PDU/PDRUs by 2. Table 3. Recommended PDU/PDRUs for Multiple Disk Systems in HP Legacy Racks No. of Disk Systems 1.1 meter (21 U) 1.6 meter (32 U) 2.0 meter (41 U) 2 3-foot/16-amp PDUs or 2 19-inch/16-amp PDUs 2 5-foot/16-amp PDUs1 or 2 19-inch/16-amp PDUs 6–8 NA2 4 19-inch/16-amp PDRUs or 4 19-inch/30-amp PDRUs 9 – 10 NA2 NA2 4 19-inch/ 30-amp PDRUs 1.Supports cabinet on/off switch. 2.
Installing PDU/PDRUs The 19-inch PDUs and PDRUs can be installed vertically or horizontally in the rack. Choose PDU/PDRU locations with the following guidelines in mind: ■ Place PDU/PDRUs within the reach of disk system cords. ■ Place PDU/PDRUs vertically whenever possible. See sample installations in Figure 10 and Figure 11. Installing PDU/PDRUs horizontally interferes with the ability to service disk systems that are behind the PDU/PDRU.
Software Requirements Ensure that the minimum revisions of HP-UX extension software and online diagnostics are installed. These release packages enable STM and EMS for the disk system. 1 At the host console, enter swlist | grep XSW and look for the following extension software according to the installed HP-UX revision: — HP-UX 11.00 with HWE 0302 (March 2002 Patch bundles) — HP-UX 11.
Step 1: Gather Tools Once the electrical, software, and special V-class preparations are complete, collect the tools you need to install the disk system hardware: ■ Torx T25 screwdriver ■ Torx T15 screwdriver ■ Small flat-blade screwdriver Step 2: Unpack the Product 1 Lift off the overcarton and verify the contents of the accessories (top) box. See Table 5 and Figure 12. Table 5.
Installation 2 Lift off the accessories box and the top of the under box, and verify the contents shown in Table 6 and Figure 13. Table 6.
3 If a part is missing, contact an HP sales representative.
Step 3: Install the device Follow the procedures in this section to install your storage device in one of the following rack systems: ■ HP Rack System/E ■ HP Computer Cabinet ■ Rittal-Style Rack Installing the Storage Device into a Rack System/E Installation Your storage device can be installed into any of these HP Rack System/E Products: ■ A4900A HP Rack System/E25 (1.25 M; 25U) ■ A4901A HP Rack System/E33 (1.60 M; 33U) ■ A4902A HP Rack System/E41 (2.
2 Study the installation overview (see Figure 15). The following tools are required for the installation of the storage device: ■ Flat-blade screwdriver ■ T25 nut driver WARNING To ensure cabinet or rack stability, and avoid possible injury, always install the storage devices in the rack or cabinet from the bottom up. 3 Locate a place on the rack columns with the available space required for the installation of the storage device. The storage device and the rail kit require 3 EIA units of space.
Use the following table as a guide for placement of the rails in a Rack System/E where multiple disk systems will be installed. You can rack multiple disk systems without gaps by installing rails every three EIA units. For example, starting at the bottom of a 2-meter rack, set rails at the following unit/hole locations: Table 7.
Note Be sure to use the same tab—upper or lower—on opposing rails. Also, hole patterns vary at opposite ends of the rails. 5 Insert the rail tabs into the appropriate column holes (see A in Figure 18). Installation 6 Secure the rail ends with one M5 screw each. 7 Install clipnuts on the front columns of the cabinet (see Figure 19). These are used for the retention bracket screws.
8 Place the storage device on the rails and slide into the cabinet until the retention bracket comes into contact with the rack column (see Figure 20). WARNING An empty disk system weighs approximately 54 pounds (24.5 kg). To avoid personal injury, it is recommended that two people install the storage device in the rack. 9 Insert and tighten the storage device retention (M5) screws through the retention bracket (see Figure 20).
Installation Installation 47
10 Place a rail clamp on each rail and slide them to each bottom rear corner of the storage device (see Figure 21). 11 Secure the clamps to the rails. Use one 10-32 screw for each rail clamp.
Installing the storage device into an HP Computer Cabinet Your storage device can be installed into the following Computer Cabinets: ■ C2785A Computer Cabinet (1.10M; 21U) ■ C2786A Computer Cabinet (1.60M; 32U) ■ C2787A Computer Cabinet (1.96M; 41U) Caution To ensure proper installation, only use the instructions in this manual for installing the storage device in the HP Computer Cabinet. Do not use the instructions enclosed in the rail kit box.
2 Study the installation overview (see Figure 23). The following tools are required for the installation of the storage device: ■ Flat-blade screwdriver ■ T25 nut driver WARNING To ensure cabinet or rack stability and avoid possible injury, always install the storage devices in the rack or cabinet from the bottom up. 3 Locate a place on the rack columns with the available space required for the installation of the storage device.
5 Insert the rail tabs into the appropriate holes on the HP Computer Cabinet columns (see A in Figure 26). 6 Secure the rail ends with one M5 screw each.
7 Install clipnuts on the front columns of the cabinet (see Figure 27). These are used for the device retention screws. Installation 8 Place the storage device on the rails and slide it into the cabinet until the retention bracket comes in contact with the rack column (see Figure 28). WARNING An empty disk system weighs approximately 54 pounds (24.5 kg). To avoid personal injury, it is recommended that two people install the storage device in the rack.
9 Tighten the storage device retention (M5) screws through the retention bracket (see Figure 28).
10 Install a filler panel in the space below the storage device.
Installing the Storage Device into a Rittal-Style Rack Your storage device can be installed into the Rittal-Style Rack by doing the following steps: 1 Inspect the contents of the rail kit. If any parts are missing, call your nearest HP sales office (see Figure 30). 2 Align the front of rails to the inside of the front cabinet column. Carefully observe the alignment of the groups of holes on the columns so the holes in the rails align properly (see Figure 31).
4 Extend the adjustable slide to the back column of the cabinet. 5 Insert the mounting screws and finger tighten them through the rear column of the cabinet (see Figure 33).
6 Tighten the center nuts to finger tightness (see Figure 34). Installation 7 Tighten all screws to their final tightness using a driver. Tighten the screws that hold the rail to the columns first, before tightening the center slide nuts to their final tightness. 8 Repeat the procedure above for the other rail.
9 Insert the disk system (with disk modules and power supplies removed) onto the rails (see Figure 35).
10 Move the disk system retention brackets to the frontmost set of mounting holes. This allows the disk system to install further back into the cabinet; and allows the cabinet doors (if present) to close properly (see Figure 36).
11 Push the disk system back into the rack until the disk system retaining bracket is flush against the front column of the rack. 12 Bolt the disk system to the front column. Use the fifth hole from the top of the front of the rail (see Figure 37).
Install the Disk System 1 Remove the power supply/fan modules to prepare the disk system for lifting: a Loosen the screws in the extractor handles of each power supply/fan module with the chassis still in the box. b Pull the extractor handles out from the center of the power supply to disengage it from the midplane. Pull each power supply/fan module out of the chassis. Support the far end of the power supply/fan module with your free hand as it clears the chassis.
Step 4: Configure LCCs The disk system comes with two LCCs installed. If you are connecting this disk system to an HP StorageWorks Virtual Array 7400 or to a 1 Gb/s hub, the link speed switch must be set to 1 Gb/s. 1 Attach your ESD strap to ground. 2 Remove the LCC from the disk system chassis. Caution Do not touch the pins on the back of the LCC. 3 Set internal configuration dip switch to appropriate link speed.
4 Open the LCC cam latches (B in Figure 39) by pulling them away from the center. 5 Align the LCC with the slot (D in Figure 39), and insert the LCC into the slot at the back of the disk system. Stop pushing when the LCC meets the midplane. 6 Press the cam latches inward and flat against the center. The cam action draws the LCC completely into the slot and seats the connector pins on the midplane. 7 Tighten the locking thumbscrews (C).
Step 6: Connect FC and Power Cables 1 Connect the front-end fiber-optic cables. Front-end fiber-optic cable connections depend on the type of connectors used by the controller and the type of HBA to which the controller is connected. The Virtual Array Products use integrated LC (small form factor) connectors. They support HBAs with either SC (large form factor) or LC connectors. See Figure 40 through Figure 45. 2 Connect power cords to the power receptacle on the power supply/fan module(s).
Step 7: Install Disk Modules Caution Touching exposed areas on the disk can cause electrical discharge and disable the disk. Be sure you are grounded and be careful not to touch exposed circuits. Disk modules are fragile and ESD sensitive. Dropping one end of the disk just two inches is enough to cause permanent damage. In addition, static electricity can destroy the magnetic properties of recording surfaces.
1 Determine which slots, 1 through 15, will contain disk modules and which will contain fillers. At least two slots must contain disk modules. 2 Put on the ESD strap and attach the other end of the strap appropriately. Caution Disk modules are fragile. Handle carefully. Be careful to grasp the disk module by its handle and avoid touching exposed circuitry. 3 Remove a disk module from the disk pack and its ESD bag. 4 Open the disk module cam latch (C) by pulling the tab toward you.
Step 9: Verify Devices on the Host On the host system run IOSCAN (ioscan -f) and verify that the disks and LCC(s) are listed in IOSCAN output. If the displayed “S/W State” is not “claimed,” begin troubleshooting (see chapter 4). Sample IOSCAN Each LCC (ctl) or disk appears as a separate target in IOSCAN output.
disk target disk 145 13 146 0/8/0/0.8.0.255.0.7.0 sdisk CLAIMED DEVICE 0/8/0/0.8.0.255.0.8 tgt CLAIMED DEVICE 0/8/0/0.8.0.255.0.8.0 sdisk CLAIMED DEVICE HP 36.4GST336704FC HP 36.4GST336704FC The “descriptions” in this example represent some of the valid disk modules.
Installation
3 Configuration Viewing a Disk System in IOSCAN An IOSCAN (example below) shows each LCC (0/8/0/0.8) and disk in the system. Sample IOSCAN Type the command: ioscan -fn Class I H/W Path Driver S/W State H/W Type Description =========================================================================================== fcp ext_bus target disk 4 10 5 140 0/8/0/0.8 fcp CLAIMED INTERFACE FCP Protocol Adapter 0/8/0/0.8.0.255.0 fcpdev CLAIMED INTERFACE FCP Device Interface 0/8/0/0.8.0.255.0.
/dev/dsk/c10t5d0 target disk 11 144 0/8/0/0.8.0.255.0.6 tgt CLAIMED 0/8/0/0.8.0.255.0.6.0 sdisk CLAIMED /dev/dsk/c10t6d0 target disk 12 145 0/8/0/0.8.0.255.0.7 tgt CLAIMED 0/8/0/0.8.0.255.0.7.0 sdisk CLAIMED /dev/dsk/c10t7d0 target disk 13 146 0/8/0/0.8.0.255.0.8 0/8/0/0.8.0.255.0.8.0 tgt CLAIMED sdisk CLAIMED /dev/dsk/c10t8d0 target disk 14 147 disk 15 148 disk 16 149 disk 17 150 disk 18 151 DEVICE DEVICE CLAIMED 0/8/0/0.8.0.255.0.10.0 sdisk CLAIMED 0/8/0/0.8.0.255.0.
The disks shown in the previous sample ioscan -fn are the ST318451FC (used in the A6191A disk module) and the ST336704FC (used in the A6192A disk module).
2 Combine the two binary fields into 8 bits and convert back to decimal: Upper bit Lower bit 0 0 1 0 1 1 1 0 32 + 8+4+2 = 46 Loop IDs and Hardware Paths by Enclosure ID The rotary switch on the LCC set the Fibre-Channel Address range for the enclosure. Both LCCs should be set identically for proper redundancy. Multiple enclosures need to have unique settings to avoid address conflicts. If devices are physically present and are not reported as found, suspect address conflicts with other devices.
Table 8. Loop IDs and Hardware Paths by Slot Number and Enclosure ID 0 - 2 Encl.
Table 9. Loop IDs and Hardware Paths by Slot Number and Enclosure ID 3 - 4 Encl. ID 3 4 Disk Slot # (dec) Loop ID (dec) Bus (dec) Tgt (dec) ALPA (hex) Loop ID (dec) Bus (dec) Tgt (dec) ALPA (hex) 9 56 3 8 80 80 4 8 67 10 57 3 9 7C 73 4 9 66 11 58 3 10 7A 74 4 10 65 12 59 3 11 79 75 4 11 63 13 60 3 12 76 76 4 12 5C 14 61 3 13 75 77 4 13 5A 15 62 3 14 74 78 4 14 59 SES 79 4 15 56 79 4 15 56 Table 10.
Table 10. Loop IDs and Hardware Paths by Slot Number and Enclosure ID 5- 6 Encl.
Setting Up the Hardware Event Monitor Separate monitors watch over the disks and the disk system. You need to install and configure the Disk Monitor (disk_em) and the High Availability Storage System Monitor (dm_ses_enclosure) for complete event notification. To install and configure the required monitors, refer to the EMS Hardware Monitors User’s Guide, which is included in Adobe Acrobat format on the IPR Support Media. You can download a copy of Acrobat Reader without charge from http://www.adobe.
4 Select Write Label from the Info menu. The User Defined Annotation window, similar to the screen shown below, displays the existing label in an edit field. Figure 50. Annotate Device Using STM Configuration 5 Type the desired text in the New User Defined Annotation field. Click OK. The new label will replace the existing label. To view the annotation of a selected disk system, select Read Label from the Expert Tool Info menu. The label is displayed in the Expert Tool window.
Updating Firmware (HP-Qualified Only) Obtain the latest disk system firmware release from the support web site before traveling to the customer site. When you arrive at the site: 1 Save the firmware file on the customer’s system, preferably in the default firmware directory: /var/tmp 2 If you want to run STM in graphic mode, make sure DISPLAY is exported. 3 Start STM by typing xstm& on the HP-UX command line. This command starts the graphic version of STM and keeps the X window open when you quit STM.
6 Select the firmware file from the list of files displayed in the default or specified directory. Click OK. 7 Select Start Update... from the Update menu. STM prompts you to confirm or cancel the firmware update. A window is similar to the one shown below. Figure 52.
The results of your action appear in the Tool window. The screen that appears is similar to the illustration shown below. Figure 53.
4 Troubleshooting Overview The following steps will help you identify and resolve disk system failures: 8 Gather information from all sources: — Event notifications (page 93) — Disk system LED status (page 96) — Online information tools (page 98) 9 Isolate the cause of the problem (page 104). 10 Correct the problem (chapter 5, Removal and Replacement). 11 Verify operational status with IOSCAN or other host utilities.
Messages identify five levels of severity: Critical An event that causes data loss, host system downtime, or other loss of service. Host system operation will be affected if the disk system continues to be used without correction. Immediate action is required. Serious An event that may cause data loss, host system downtime, or other loss of service if left uncorrected. Host system and hardware operation may be adversely affected. The problem needs repair as soon as possible.
Figure 54. Sample Hardware Event Notification Notification Time: Wed Feb 3 11:27:15 1999 yourserver sent Event Monitor notification information: /storage/events/enclosures/ses_enclosure/8_0_1_0.15.0 is >=1. Its current value is MAJORWARNING(3) Event data from monitor: Event Time: Wed Feb 3 11:27:15 1999 Hostname: yourserver.rose.hp.com Event ID: 0x0036b8a313000000002 Event # : 402 Severity : MAJOR WARNING IP Address : 15.43.213.
Status LEDs LEDs indicate the status of the disk system itself and each of its components (see Table 11). Green and amber system LEDs are visible on the front of the disk system. They show that power is on (green) and a fault has occurred (amber). Disk activity (green) LEDs are on the front of the disk drives at the bottom. Other LEDs are on individual components in the back of the disk system. LED states are described in Table 11: Table 11.
Table 11. LED Functions LED State System Fault LCC Fault Link Active 2G Power Supply 3 Disk Activity Indication Amber Self-test1 / Problem.2 OFF Normal operation. Flashing LCC A & B DIP switch settings do not match. Amber Self-test1 / Fault. OFF Normal operation. Flashing Peer LCC DIP switch settings do not match. Green Port is in use. OFF Port is disabled (bypassed). ON Disk system is configured for 2.125 Gb/s operation. OFF Disk system is configured for 1.0625 Gb/s operation.
Online Status Information Software applications that run on HP-UX hosts display status and descriptive information about the disk system and its components. SAM is the system administrator’s interface to specific HP-UX functions. STM is the service engineer’s tool for information, diagnostics, firmware updates, and more. Viewing Component Status in SAM SAM displays the status of disk system components on the host console.
Status values are OK, critical error, noncritical, not installed, unknown, and status not available. See Interpreting Status Values on page 100 for the meanings of these terms. Viewing the STM Information Log STM generates Information and Activity logs for a selected disk system. Execute STM in an X window and run the Information tool as follows. 1 At the system prompt, type xstm&. 2 Select the desired disk system (HP A6250A). 3 Select Information from the Tools menu.
Enclosure ID The unique manufacturer number that distinguishes the reporting LCC from all other LCCs. WW Name (node) The World Wide Name assigned to this disk system. In normal operation, this value is the same as the World Wide Name (port) for LCC A. WW Name (port) The World Wide Name of the reporting LCC. Firmware Rev. The current firmware version on the reporting LCC. Power Supply Status The status of the left (Supply A) and right (Supply B) power supplies in the selected disk system.
Table 12. Status Indications Reported Status Critical Applicable Component Indication Replaceable components Hardware has failed. Sensors Voltage/temperature exceeds critical limit. Noncritical LCC LCC A and LCC B have different firmware versions. Sensors Voltage/temperature exceeds warning limit. Not Installed All replaceable components and sensors Component is not installed. Unknown Sensors Sensor has failed or status is not available.
Checking the Fibre Channel Link At power up, the disk system and the host Fibre Channel I/O adapters default to Fibre Channel Arbitrated Loop (FC-AL) Use the HP-UX FCMSUTIL on the host to verify that the loop is operating correctly. Then check the Fibre Channel cables and connectors. To create the device files, first run the IOSCAN command against the Fibre Channel driver to find the minor numbers.
4 After the device files have been created, issue the FCMSUTIL command on the device files.
Isolating Causes Table 13 lists the probable causes and solutions for problems you may detect on the disk system. When more than one problem applies to your situation, investigate the first description that applies. The table lists the most basic problems first and excludes them from subsequent problem descriptions. Table 13.
Table 13. Troubleshooting Table Problem Description Power supply LED is amber HW Event Category Critical LED State Amber STM Status Critical Probable Cause/Solution ■ An incompatible or defective component caused a temporary fault. ■ Power supply hardware is faulty. Unplug the power cord and wait for the LED to turn off. Reinsert the power cord. If fault persists, replace the power supply. IOSCAN lists LCC and disks as NO_HW Critical All normal none ■ Cable is unplugged or loose at either end.
Table 13. Troubleshooting Table Problem Description Temperature is over limit HW Event Category Critical LED State none STM Status Critical Temp is >54.5º C (130.1º F) Major Warning none Probable Cause/Solution ■ A fan is faulty. Check status and correct. ■ Airflow is obstructed; vents are blocked. Non-critical ■ One or more slots are empty. ■ Power supply is faulty. Check status Temp is and correct. >36º C (96.8º F) ■ Room temperature is too high.
Table 13. Troubleshooting Table Problem Description HW Event Category Major Warning Peer LCC status, temperature and voltage are Not Available LED State STM Status Probable Cause/Solution none Both LCCs: Firmware on LCC A and LCC B are Non-critical different versions. none Not Available Internal bus is faulty. Contact HP technical support to replace midplane.
Troubleshooting
Removal and Replacement Caution Do not remove hot-pluggable components until you have the replacement parts and are ready to install them. An empty slot will cause uneven cooling and eventual overheating. Caution Do not move the disk system with disks installed and power on. Even a one-inch drop of the disk system can damage spinning disks.
Table 14. Disk System Field Replaceable Units Fig. 38 Item Part No. FRU Description Qty Per Encl. Exch/ Repl.
Add or replace disks to increase storage capacity or eliminate faults. (See chapter 4 for troubleshooting procedures.) Disks must be Fibre Channel (FC) and 3.5 inches wide but can vary in capacity. For current information about supported disks, consult an HP sales representative. You do not need to turn off the disk system to replace a disk or filler. Preparation Removing or replacing a disk has consequences for the file systems and logical volumes located on the disk.
The following messages will appear if the disk is defective: VGDISPLAY: WARNING: COULDN’T QUERY PHYSICAL VOLUME “/dev/dsk/c2t4d0” THE SPECIFIED PATH DOES NOT CORRESPOND TO PHYSICAL VOLUME ATTACHED TO THE VOLUME GROUP VGDISPLAY: WARNING: COULDN’T QUERY ALL OF THE PHYSICAL VOLUMES If either of the above messages appears, follow the replacement instructions for unattached physical volumes (page 114). Otherwise, follow the instructions to determine if the physical volume is attached.
1 Enter the following command to reduce the mirror: For example, to reduce a two-way mirror: # lvreduce -m 0 -A n /dev/vg00/lvol4 /dev/dsk/c2t4d0 or, for a three-way mirror: # lvreduce -m 1 -A n /dev/vg00/lvol5 /dev/dsk/c2t4d0 If this step fails, execute an lvdisplay command to determine if the lvreduce command succeeded. If the command did not succeed, execute the command again. Perform any other lvreduce commands that were not executed before the system failed. Then proceed.
# vgchange -a y For example: # vgchange -a y /dev/vg00 6 Enter the lvextend command to transfer the mirrors onto the replaced disk. It will take time to copy all of the original data to the mirrored extents. The logical volumes are accessible to users’ applications for two-way mirroring during this command.
# vgchange -a y # vgchange -a y /dev/vg00 Tools ■ ESD wrist strap (no hand tools are required to perform this procedure). Whenever possible, follow ESD procedures. Procedure Caution Whenever possible, follow standard ESD procedures and avoid touching exposed circuitry. Do not remove a disk or filler from an operating product until you have the replacement part and are ready to install it. An empty slot will cause uneven cooling and overheating.
Caution Replace the disk module or filler immediately (see next step). Caution Touching the disk circuit board can cause high energy discharge and permanently damage the disk. Disk modules are fragile. Handle carefully. 3 Remove the replacement disk module from its ESD bag, being careful to grasp the disk module by its extraction handle (see Figure 57). (Fillers are not in ESD bags.) 4 Press the cam latch toward the end of the extraction handle to loosen the extraction handle.
7 Run IOSCAN on the host and verify that the replacement disk module is “claimed.” 8 Restore file systems and data as needed (see Preparation on page 111). LCC Replace an LCC when troubleshooting shows that the card is faulty (see “Isolating Causes” in chapter 4). There is no need to turn off the disk system to remove and replace an LCC. However, the host must be notified that all disks on the affected loop will be unavailable for I/O. Refer to Preparation on page 111.
3 Open the cam levers (B) by pulling them away from the center of the card. This disconnects the LCC pins from the midplane. 4 Pull the LCC out of the slot (C). Replace the LCC immediately if the product is in use (see next step). 5 Attach the clip end of your ESD wrist strap to the ground stud at the top of the rack. Caution Touching the LCC pins can cause high energy discharge and permanently damage the LCC. 6 Remove the replacement LCC from its ESD bag.
7 Set address switches on the new LCC to match settings on the peer LCC. The address switches must have the same settings on both LCCs. 8 Open the cam levers (see Figure 58) by pulling them away from the center of the card. 9 Insert the LCC in the empty slot. 10 Push the cam levers flat against the center of the card to seat the LCC pins firmly on the midplane. 11 Watch the LCC Fault LED (see Figure 59). It should come on briefly and then turn off.
Power Supply Replace a power supply as soon as possible when troubleshooting indicates a power supply failure (see “Isolating Causes” in Chapter 4). If a power supply fails, the remaining power supply provides proper voltage to the disk system. However, if the remaining power supply fails before the first power supply is replaced, the disk system will turn off. The power supply fan may continue to operate even when a power supply fails. You do not need to turn off the disk system to replace a power supply.
Removal and Replacement 5 Slide the replacement power supply into the empty slot (D in Figure 60). The power supply begins to engage the midplane with 3/8 inch (8mm) still exposed. 6 Rotate the handles back toward the center of the power supply module to draw the power supply the last 3/8 inch into the chassis and firmly seat the power supply on the midplane. The power supply should be flush with the edge of the chassis. 7 Tighten the thumbscrews on the power supply handles (A and B).
Disk System Use this procedure if you need to move or remove and replace the disk system in the rack. For example, you must remove the disk system from the rack in order to replace the midplane or power switch assembly. Twenty four inches of vertical space is required in the rack if the midplane or power switch assembly are to be replaced without removing the disk system from the rack. The disk system will be turned off in this procedure.
Removal and Replacement 7 Push the disconnected disk system forward or lift it completely out of the rack, as needed. 8 When you are ready to replace the disk system, push the chassis back into the rack. 9 Insert and tighten the front mounting screws. 10 Reinstall the power supply/fan module(s). 11 Reinstall the disk modules in the slots from which they were removed. 12 Reconnect Fibre Channel cables and power cords. 13 Push the power/standby button in to turn on the disk system.
Top Cover (HP-Qualified Only) The following procedure is for HP-qualified personnel only. The top cover, which is not an orderable part, will need to be removed and replaced to service the light pipes, the power switch extension arm, or the midplane. You will need to turn the power off to perform this procedure. Tools ■ Small flat-blade screwdriver ■ Torx T25 screwdriver ■ Torx T10 screwdriver Procedure Caution Disk slots must be empty before removing the top cover.
Removal and Replacement 9 Slide the cover toward the middle of the chassis. 10 Insert the three flathead screws through the holes as shown in Figure 62 and tighten. 11 Reconnect the disk system. See page 120. 12 Reinstall disks. See page 111.
Midplane (HP-Qualified Only) The midplane board is replaceable by HP-qualified personnel only. Replace the midplane based on troubleshooting results (see “Isolating Causes” in chapter 4). Disks, LCCs, and power supply/fan modules connect to the midplane. The power must be OFF and the top cover removed in order to remove and replace the midplane board. Caution Turning off a disk system isolates the enclosed disks from the host.
f g Pull the midplane forward to clear alignment pins and lift it up and out of the disk system. 4 To replace the midplane: a Stand the new midplane inside the chassis and push it over the alignment pins. Connectors automatically align with floating fan connectors inside the chassis. b Insert and tighten eight screws into the midplane and chassis. c Replace the light pipes. d Replace the power switch extender arm. 5 Replace the top cover. See page 124. 6 Reseat and secure the LCCs (see page 117).
6 Reference Product Models and Options Three models of the disk system are available: ■ A6250A field-racked disk system ■ A6250AZ factory-racked disk system ■ A6250AE empty field-racked disk system Reference 129
Upgrade Products Order the following parts to expand or reconfigure your original purchase: Table 15. Upgrade Products Order No.
PDU/PDRU Products Table 16. PDU/PDRU Products Order No.
Replaceable Parts Table 17. Replacement and Exchange Part Numbers Replacement Part Order No. Exchange Part Order No.
Weight A fully loaded disk system weighs approximately 78 pounds. Component weights are shown in Table 18. Table 18. Product Weights Quantity Subtotal (lbs) Disk Module (half height disk drives) 1.6 15 24 Power Supply/Fan Module 9.5 2 19 LCC 3 2 6 Midplane 6 1 6 Chassis 23 1 23 Approx. Total 78 lbs AC Power Input The disk system operates at 100-127 and 200-240 V AC, 50-60 Hz, single phase, power factor corrected. Maximum current is 6.5 amps over the low voltage range and 3.
Environment The following environmental specifications were type-tested under controlled conditions. Hewlett-Packard maintains an active program of auditing production products to make sure these specifications remain true when products are retested under the same conditions. However, the limits of these specifications do not represent the optimum for long, trouble-free operation and specifically are not recommended for maximum satisfaction. The recommended conditions are stated when appropriate.
TUV certified with GS mark, EN 60950:1992 + A1:1993, A2:1993, A3:1995, A4:1997 CE mark (see Declaration of Conformity on page 139) EMC Compliance Australia: AS/NZS 3548, Class A Canada: ICES-003, Class A China: CB9254-88 European Union: EN55022 Class A, EN50082-1 Japan: VCCI Class A Reference Taiwan: CNS 13438, Class A US: 47 CFR Parts 2 & 15, Class A Reference 135
Regulatory Statements A. FCC Statement (For U.S.A. Only) The Federal Communications Commission (in 47 CFR 15.105) has specified that the following notice be brought to the attention of the users of this product. This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment.
C. Spécification ATI Classe A (France) DECLARATION D’INSTALLATION ET DE MISE EN EXPLOITATION d’un matériel de traitement de l’information (ATI), classé A en fonction des niveaux de perturbations radioélectriques émis, définis dans la norme européenne EN 55022 concernant la Compatibilité Electromagnétique.
E. VCCI Statement (Japan) Harmonics Conformance (Japan) F.
G.
Product Web Site This guide is available in Adobe® Acrobat® format on the HP Customer Care web site for enterprise storage (http://www.hp.com/support/storage). Choose HP Disks and Disk Arrays and then HP disk systems. The HP StorageWorks Disk System 2405 is one of the disk system selections. Related Documents The following manuals explain how to use the system software interfaces to the HP StorageWorks Disk System 2405. ■ EMS Hardware Monitors User’s Guide, available at http://docs.hp.
index A AC power 133 acoustics, product 134 Acrobat Reader World Wide Web site 88 annotating devices using SAM 88 using STM 88 arbitrated loop (FC-AL) definition 29 audio alarm 104 C Cautions circuit board 76 ESD 75 LCC pins 64 LCC switch settings 119 moving the disk system with power on 109, 122 multiple disk systems 32, 75 operating with empty slot 115, 117, 120 permanent disk damage 116 permanent LCC damage 117, 118 removing disk 115 top cover 124 static discharge 126 turning off the disk system 126 co
E EMC compliance 135 Enclosure ID settings 87, 103 environment, product 134 environmental services event notification 93 environmental services, features of 16 event messages, contents of 94 event monitor 93 user guide 140 event notification 88, 93– 95 exchange part numbers 132 J F JBOD definition 28 fan troubleshooting 104, 106 FC cable installing 72 FC-AL ID 87 firmware mismatch 104 obtaining latest release 90 troubleshooting 107 updating 90 H Hardware Event Monitor 88 hardware requirements 23 high a
logical volume 111 loop ID 83 M midplane installing 126 removing 126 model numbers 129 Multimode definition 29 O operating systems required 23 order number LCC 38 PDU/PDRU 131 upgrade products 130 User Guide 38 P part numbers 132 PDRU definition 28 PDU definition 28 PDU/PDRU definition 28 installing 34 order numbers 131 troubleshooting 104 physical volume group 111 power cable installing 72 power supply troubleshooting 105, 106 power supply/fan module description of 21 installing 120 LED 121 removing 120
S V safety certifications 134 SAM annotating devices 88 Short Wave definition 28 site preparation 31 electrical 31 PDU 32 software requirements 23 verifying 37 status LEDs 96 steady state current 31 STM annotating devices 88 Information Log contents 99 user guide 140 switches LCC 66 verify connection to the host 78 voltage, troubleshooting 106 T temperature troubleshooting 106 topologies 23 troubleshooting event notification 93 Information Log 98 isolating faults 104 overview 93 status LEDs 96 table 104
