HP P2000 G3 SAS MSA System User Guide Part number: 614561-002 First edition: July 2011
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Contents About this guide . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 Intended audience . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Prerequisites. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Related documentation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Document conventions and symbols . . . . . . . .
Connecting the enclosure to data hosts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . SAS host ports. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Connecting direct attach configurations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Single controller configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Disk drive LEDs. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Rear panel LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P2000 G3 SAS MSA System SFF and P2000 G3 SAS MSA System LFF. . . . . . . . . . . . . . . . . . . . . . . D2700 6Gb drive enclosure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Contents
Figures 1 2 3 4 5 6 7 8 9 10 11 12 13 14 P2000 G3 MSA System component connection combinations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Cabling connections between P2000 G3 MSA System controllers and P2000 6Gb drive enclosures . . Cabling connections between P2000 G3 controllers and D2700 6Gb drive enclosures . . . . . . . . . . . Cabling connections between P2000 G3 controllers and MSA2000 3Gb drive enclosures . . . . . . . .
Figures
Tables 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 Document conventions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 Installation checklist . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 SAS expansion cable requirements: controller module to expansion module connection . . . . . . . . . . . .
Tables
About this guide This guide provides information about hardware setup for the HP P2000 G3 SAS MSA System controller enclosures. Intended audience This guide is intended for storage system administrators.
Document conventions and symbols Document conventions Table 1 Convention Element Medium blue text: Figure 1 Cross-reference links and e-mail addresses Medium blue, underlined text (http://www.hp.
Rack stability WARNING! To reduce the risk of personal injury or damage to equipment: • Extend leveling jacks to the floor. • Ensure that the full weight of the rack rests on the leveling jacks. • Install stabilizing feet on the rack. • In multiple-rack installations, secure racks together. • Extend only one rack component at a time. Racks may become unstable if more than one component is extended.
HP websites For additional information, see the following HP websites: • http://www.hp.com • http://www.hp.com/go/storage • http://www.hp.com/service_locator • http://www.hp.com/support/manuals • http://www.hp.com/support/downloads • http://www.hp.com/storage/whitepapers • http://www.hp.com/go/p2000 Documentation feedback HP welcomes your feedback. To make comments and suggestions about product documentation, please send a message to storagedocs.feedback@hp.com. All submissions become the property of HP.
1 Overview The HP P2000 G3 SAS MSA System is a high-performance storage solution combining outstanding performance with high reliability, availability, flexibility, and manageability. Features and benefits Product features and supported options are subject to change. Online documentation describes the latest product and product family characteristics, including currently supported features, options, technical specifications, configuration data, related optional software, and product warranty information.
Overview
2 Components Front panel components P2000 G3 SAS MSA System LFF Right ear Left ear P2000 4 7 10 3 6 9 12 1 4 1 2 5 3 1 Enclosure ID LED 4 Unit Identification (UID) LED 2 Disk drive Online/Activity LED 5 Heartbeat LED 3 Disk drive Fault/UID LED 6 Fault ID LED 6 P2000 G3 SAS MSA System SFF Right ear Left ear P2000 1 4 2 5 3 1 Enclosure ID LED 4 Unit Identification (UID) LED 2 Disk drive Online/Activity LED 5 Heartbeat LED 3 Disk drive Fault/UID LED 6 Fault ID LED
Disk drive bay numbers P2000 G3 SAS MSA System LFF 1 4 7 10 2 5 8 11 3 6 9 12 P2000 4 7 10 3 6 9 12 1 P2000 G3 SAS MSA System SFF 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 P2000 Rear panel view — controller module The P2000 G3 MSA System controller module shown below is not proportionately sized relative to preceding controller enclosure views. The controller module face plate is enlarged to show relevant detail.
Rear panel components P2000 G3 SAS MSA System SFF and P2000 G3 SAS MSA System LFF 1 3 5 7 3 LINK SAS 1 SAS 2 ACT LINK LINK ACT ACT 2 SAS 3 9 SAS 4 1 LINK ACT 6Gb/s SERVICE CACHE CLI LINK SAS 1 SAS 2 ACT CLI HOST ACT LINK LINK LINK ACT ACT SAS 3 SAS 4 LINK ACT 6Gb/s SERVICE - CACHE CLI CLI HOST ACT LINK q 46 8 w 1 AC Power supplies 7 Network port 2 Controller module A 8 Service port (used by service personnel only) 3 Host interface ports (mini-SAS) 9 SAS ex
P2000 6Gb 3.5" 12-drive enclosure 1 3 4 56 0 1 0 2 IN OUT 0 0 7 IN OUT 1 Power supplies 5 SAS In port 2 I/O module A 6 SAS Out port 3 Disabled button (used by engineering only) 7 I/O module B 4 Service port (used by service personnel only) MSA70 3Gb drive enclosure P2000 G3 MSA System controllers can also be attached to an MSA70 3Gb drive enclosure that is running firmware version 2.18 or later.
NOTE: See HP P2000 G3 MSA System SMU Reference Guide for more information about volume cache options. Transportable CompactFlash During a power loss or array controller failure, data stored in cache are saved off to non-volatile memory (CompactFlash). These data are then written to disk after the issue is corrected. To protect against writing incomplete data to disk, the image stored on the CompactFlash is verified before committing to disk.
Components
3 Installing the enclosures Installation checklist The following table outlines the steps required to install the enclosures and initially configure the system. To ensure a successful installation, perform the tasks in the order they are presented. Table 2 Installation checklist Step Task Where to find procedure 1. Install the controller enclosure and optional drive enclosures in the rack, and attach ear caps. See the racking instructions poster. 2.
Connecting controller and drive enclosures P2000 G3 MSA System controller enclosures — available in either 24-drive (2.5”) or 12-drive (3.5”) chassis — support up to eight enclosures (including the controller enclosure) for storage/expansion, or a maximum of 149 disk drives. You can also configure drive enclosures of mixed type, as shown in Table 3 on page 26. The firmware supports both straight-through and reverse SAS cabling.
Connecting controller and mixed drive enclosures P2000 G3 MSA System controller modules support cabling of 3Gb and 6Gb SAS link-rate LFF and SFF expansion modules — in mixed fashion — as shown in Figure 10 on page 32, and as further described in Additional cabling considerations (below); the HP P2000 G3 MSA System Cable Configuration Guide; and HP white papers (listed on the following page).
Table 3 SAS expansion cable requirements: controller module to expansion module connection Product model-to-model storage component attachment SAS Expansion (In/Out) cable data Controller module Drive enclosure Type P2000 G3 SAS MSA SFF and P2000 G3 SAS MSA LFF P2000 6Gb drive enclosure mini-SAS to mini-SAS1 0.5m 6Gbps D2700 6Gb drive enclosure 1 0.
• If used together with mixed drive enclosures, an MSA2000 3Gb drive enclosure should be cabled after other supported models, using straight-through cabling. Table 4 SAS expansion cable requirements: expansion module to expansion module connection Product model-to-model storage component attachment SAS expansion (In/Out) cable data Expansion module Type P2000 6Gb drive enclosure Expansion module Length Connectors P2000 6Gb drive enclosure mini-SAS to mini-SAS 1 0.
NOTE: For clarity, the schematic illustrations of controller and expansion modules shown in this section provide only relevant details such as expansion ports within the module face plate outline. For detailed illustrations showing all components, see Rear panel components on page 19.
Controller A 1A Controller B 1B 2A 2B In Out In Out Figure 5 Cabling connections between P2000 G3 controllers and an MSA70 3Gb drive enclosure The diagram above shows dual-controller modules connected to dual-expansion modules.
Controller A 1A 1A Controller A Controller B 1B 1B Controller B 2A 2A P1 2B 2B P1 3A 3A P1 3B 3B 4A 4A P1 4B 4B P1 5A 5A P1 P2 5B 5B P1 P2 P1 P2 P1 P1 P1 P1 P1 P2 P2 P2 P2 P2 P1 P2 P1 P2 Fault-tolerant cabling P2 P2 P2 P2 P1 P2 P2 Straight-through cabling Figure 7 Cabling connections between P2000 G3 controllers and D2700 6Gb drive enclosures The figure above provides sample diagrams reflecting cabling of P2000 G3 controller enclosures and D2700 6Gb drive en
Controller A 1A Controller B 1B Out 2A In Out 2B Out 3A In In 3B Out In Out 4A In Out 4B In Figure 8 Fault-tolerant cabling: P2000 G3 controllers and MSA2000 3Gb drive enclosures Controller A 1A Controller B 1B 2A 2B In Out In Out 3A 3B In Out In Out 4A 4B In Out In Out Figure 9 Fault-tolerant cabling: P2000 G3 controllers and MSA70 3Gb drive enclosures HP P2000 G3 SAS MSA System User Guide 31
Controller A 1A 1A Controller A Controller B 1B 1B Controller B In 1 In In 1 In P1 2 2 P1 Out Out Out Out 2A 2B 2B 2 P1 P2 In Out 3A 3A 3B 3B P2 4A P2 4B P1 P2 5A P1 P2 5B Fault-tolerant cabling P1 P2 2A In Out 1 4A 4B In Out 5A In 5B In 3 In Out Out 4 Out Drive enclosure IOM face plate key: 1 = P2000 6Gb drive enclosure 2 = D2700 6Gb drive enclosure 3 = MSA70 3Gb drive enclosure 4 = MSA2000 3Gb drive enclosure Straight-through cabling Figure 10 Cab
Testing enclosure connections NOTE: Once the enclosures’ power-on sequence succeeds, the storage system is ready to be connected to hosts, as described in Connecting the enclosure to data hosts on page 37. Powering on/powering off Before powering on the enclosure for the first time: • Install all disk drives in the enclosure so the controller can identify and configure them at power-up. • Connect the cables and power cords to the enclosures as explained in the installation sheet.
2. Plug the power cord into the power cord connector on the back of the drive enclosure (see Figure 11). Plug the other end of the power cord into the rack power source. Wait several seconds to allow the disks to spin up. Repeat this sequence for each PSU within each drive enclosure. 3. Plug the power cord into the power cord connector on the back of the controller enclosure (see Figure 11). Plug the other end of the power cord into the rack power source.
DC model Locate the two DC power cables provided with your controller enclosure. Connector pins (typical 2 places) +L +L +L +L GND -L GND -L GND -L GND -L Ring/lug connector (typical 3 places) Connector (front view) Figure 13 DC Power cable featuring sectioned D-shell and lug connectors See Figure 13 and the illustration at left (in Figure 12) when performing the following steps: 1. Verify that the enclosure’s power switches are in the Off position. 2.
Installing the enclosures
4 Connecting hosts Host system requirements Data hosts connected to P2000 G3 MSA System arrays must meet the following requirements: • Depending on your system configuration, data host operating systems may require that multi-pathing is supported. TIP: See the HP MSA System VDS and VSS Hardware Providers Installation Guide and HP MSA System MPIO DSM Installation Guide to aid in planning and implementing your MPIO DSM installation.
6Gb/second per lane — and four lanes per connector — featuring a 1.2 GHz processor with 256 MB memory, and 2GB cache. SAS host ports connect to SAS hosts or switches; they are not used for replication. Connecting direct attach configurations P2000 G3 SAS MSA System LFF and P2000 G3 SAS MSA System SFF support up to eight direct-connect server connections, four per controller module.
Four servers/one HBA per server/dual path Server 1 Server 3 Server 2 6Gb/s Server 4 6Gb/s Connecting remote management hosts The management host directly manages systems out-of-band over an Ethernet network. 1. Connect an RJ-45 Ethernet cable to the network management port on each P2000 G3 MSA System controller. 2. Connect the other end of each Ethernet cable to a network that your management host can access (preferably on the same subnet).
Connecting hosts
5 Connecting to the controller CLI port Device description P2000 G3 MSA System controllers feature a new command-line interface (CLI) port used to cable directly to the controller and initially set IP addresses, or perform other configuration tasks. This port differs from G1 and G2 controllers.
2. Insert the P2000 G3 Software Support/Documentation CD into the CD drive on a Linux or Windows computer on the network that is connected to your controller enclosure. 3. Use Autorun or manually start the CD. The MSA Device Discovery Tool will run. 4. Follow the instructions to discover the IP addresses of the controller or controllers. Record these IP addresses so that you can specify them whenever you manage the controllers using SMU or the CLI.
Host In Not S terface hown Host In Not S terface hown CLI Serv ice CLI HOST LIN DIRT K ACT Y CACH ACTIV E ITY CLI LINK Connect USB cable to CLI port on controller faceplate Figure 14 Connecting a USB cable to the CLI port 3. Enable the CLI port for subsequent communication: • Linux customers should enter the command syntax provided in Preparing a Linux computer before cabling to the CLI port on page 41.
7. At the prompt, type the following command to set the values you obtained in Step 1 for each network port, first for controller A and then for controller B: set network-parameters ip address netmask netmask gateway gateway controller a|b where: • address is the IP address of the controller • netmask is the subnet mask • gateway is the IP address of the subnet router • a|b specifies the controller whose network parameters you are setting For example: # set network-parameters ip 192.168.0.10 netmask 255.
6 Basic operation Verify that you have completed the sequential “Installation Checklist” instructions in Table 2 on page 23. Once you have successfully completed steps 1 through 8 therein, you can access the management interface using your web-browser. Accessing SMU Upon completing the hardware installation, you can access the controller module’s web-based management interface, SMU (Storage Management Utility), to monitor and manage the storage system.
Basic operation
7 Troubleshooting CLI port connection P2000 G3 MSA System controllers feature a new CLI port employing a mini-USB Type B form factor. If you encounter problems communicating with the port after cabling your computer to the USB device, you may need to either download a device driver (Windows), or set appropriate parameters via an operating system command (Linux). See Connecting to the controller CLI port for more information.
If the enclosure does not initialize It may take up to two minutes for the enclosures to initialize. If the enclosure does not initialize: • Perform a rescan. • Power cycle the system. • Make sure the power cord is properly connected, and check the power source that it is connected to. • Check the event log for errors. Correcting enclosure IDs When installing a system with drive enclosures attached, the enclosure IDs might not agree with the physical cabling order.
Is the controller back panel OK LED off? Answer Possible reasons Actions No System functioning properly. No action required. Yes The controller module is not powered on. • Check that the controller module is fully inserted and latched in place, and that the enclosure is powered on. The controller module has failed. • Check the event log for specific information regarding the failure.
Is a connected host port’s Host Link Status LED off? Answer Possible reasons Actions No System functioning properly. No action required. (see Link LED note: page 60) Yes The link is down. • Check cable connections and reseat if necessary. • Inspect cables for damage. • Swap cables to determine if fault is caused by a defective cable. Replace cable if necessary. • Verify that the switch, if any, is operating properly. If possible, test with another port.
Is the power supply’s Input Power Source LED off? Answer Possible reasons Actions No System functioning properly. No action required. Yes The power supply is not receiving adequate power. • Verify that the power cord is properly connected and check the power source it is connected to. • Check that the power supply FRU is firmly locked into position. • Check the event log for specific information regarding the fault. • Isolate the fault. • Contact an authorized service provider for assistance.
If the controller has failed or does not start, is the Cache Status LED on/blinking? Answer Actions No, the Cache LED status is off, and the controller does not boot. If valid data is thought to be in Flash, see Transporting cache; otherwise, replace the controller. No, the Cache Status LED is off, and the controller boots. The system is flushing data to disks. If the problem persists, replace the controller. Yes, at a strobe 1:10 rate - 1 Hz, and the controller does not boot. See Transporting cache.
This step isolates the problem to the external data path (host cable and host-side devices) or to the controller module port. Is the host link status LED on? • Yes – You now know that the host cable and host-side devices are functioning properly. Return the cable to the original port. If the link status LED remains off, you have isolated the fault to the controller module’s port. Replace the controller module. • No – Proceed to the next step. 5. Verify that the switch, if any, is operating properly.
7. Replace the cable with a known good cable, ensuring the cable is attached to the original ports used by the previous cable. Is the host link status LED on? • Yes – Replace the original cable. The fault has been isolated. • No – It is likely that the controller module needs to be replaced. Resolving voltage and temperature warnings 1.
Temperature sensors Extreme high and low temperatures can cause significant damage if they go unnoticed. Each controller module has six temperature sensors. Of these, if the CPU or FPGA (Field Programmable Gate Array) temperature reaches a shutdown value, the controller module is automatically shut down. Each power supply has one temperature sensor. When a temperature fault is reported, it must be remedied as quickly as possible to avoid system damage.
Troubleshooting
A LED descriptions Front panel LEDs Left ear Right ear P2000 4 7 10 3 6 9 12 1 4 1 2 3 5 6 Left ear Right ear P2000 4 1 2 3 5 6 Table 12 LEDs — HP P2000 G3 MSA Systems controller enclosure front panels LED Description Definition 1 Enclosure ID Green — On Enables you to correlate the enclosure with logical views presented by management software. Sequential enclosure ID numbering of controller enclosures begins with the integer 1.
Disk drive LEDs 3.5" LFF disk drive 2 1 2.5" SFF disk drive 2 Table 13 1 LEDs — Disk drive LEDs LED Description 1 Fault/UID (amber/blue) 2 Online/Activity (green) Table 14 LEDs — Disk drive combinations 58 Online/Activity (green) Fault/UID (amber/blue) Description On Off Normal operation. The drive is online, but it is not currently active. Blinking irregularly Off The drive is active and operating normally.
Table 14 LEDs — Disk drive combinations Online/Activity (green) Fault/UID (amber/blue) Blinking regularly (1 Hz) Description Off CAUTION: Do not remove the drive. Removing a drive may terminate the current operation and cause data loss. The drive is rebuilding. Off 1 Off Either there is no power, the drive is offline, or the drive is not configured. This Fault/UID state can indicate that the disk is a leftover. The fault may involve metadata on the disk rather than the disk itself.
LEDs — HP P2000 G3 SAS MSA System LFF and SFF rear panel Table 15 LED Description Definition 9 Cache Status Green — Cache is dirty (contains unwritten data) and operation is normal. Off — In a working controller, cache is clean (contains no unwritten data). Blinking green — A CompactFlash flush or cache self-refresh is in progress. Indicates cache activity (See also If the controller has failed or does not start, is the Cache Status LED on/blinking? on page 52).
D2700 6Gb drive enclosure P2000 G3 MSA System controllers support D2700 6Gb drive enclosures. For information about P2000 G3 MSA System products, visit http://www.hp.com/go/p2000. Select Related products, select your drive enclosure, select Support > HP Support & Drivers from the right side of the page, select your product name, and select Manuals. P2000 6Gb 3.
MSA2000 3Gb 3.5” 12-drive enclosure 1 2 1 0 0 3 4 5 6 7 Table 17 LEDs — HP MSA2000 3Gb rear panel 62 LED Description Definition 1 Power supply LEDs See Power supply LEDs on page 63. 2 Unit Locator Off — Normal operation. Blinking white— Physically identifies the expansion module. 3 SAS In Port Status Green — Port link is up and connected. Off — Port is empty or link is down. 4 OK to Remove Not implemented.
Power supply LEDs Power redundancy is achieved through two independent load-sharing power supplies. In the event of a power supply failure, or the failure of the power source, the storage system can operate continuously on a single power supply. Greater redundancy can be achieved by connecting the power supplies to separate circuits. DC power supplies are equipped with a power switch. AC power supplies may or may not have a power switch (model shown below has no power switch).
LED descriptions
B Environmental requirements and specifications Safety requirements Install the system in accordance with the local safety codes and regulations at the facility site. Follow all cautions and instructions marked on the equipment. Also, refer to the documentation included with your product’s ship kit. Site requirements and guidelines The following sections provide requirements and guidelines that you must address when preparing your site for the installation.
Weight and placement guidelines Refer to Physical requirements on page 67 for detailed size and weight specifications. • The weight of an enclosure depends on the number and type of modules installed. • Ideally, use two people to lift an enclosure. However, one person can safely lift an enclosure if its weight is reduced by removing the power supply modules and disk drive modules. • Do not place enclosures in a vertical position. Always install and operate the enclosures in a horizontal orientation.
NOTE: Connections to this device must be made with shielded cables – grounded at both ends – with metallic RFI/EMI connector hoods, in order to maintain compliance with FCC Rules and Regulations. Physical requirements The floor space at the installation site must be strong enough to support the combined weight of the rack, controller enclosures, drive enclosures (expansion), and any additional equipment.
Table 20 Rackmount enclosure weights Specifications Rackmount MSA2000 3.5” 12-drive enclosure (12 disks) 22.0 lb (9.9 kg) [chassis] • • Chassis with FRUs (no disks)1,2 Chassis with FRUs (including disks)1,3 P2000 6Gb 3.5” drive enclosure (12 disks) • • Chassis with FRUs (no disks)1,2 Chassis with FRUs (including disks)1,3 47.0 lb (21.3 kg) 68.0 lb (30.8 kg) 22.0 lb (9.9 kg) [chassis] 47.0 lb (21.3 kg) 68.0 lb (30.8 kg) 1Weights shown are nominal, and subject to variances.
Power cord requirements Each enclosure equipped with AC power supply modules requires two AC power cords that are appropriate for use in a typical outlet in the destination country. Each power cord connects one of the power supply modules to an independent, external power source. To ensure power redundancy, connect the two suitable power cords to two separate circuits; for example, to one commercial circuit and one uninterruptible power source (UPS).
Environmental requirements and specifications
C Electrostatic discharge Preventing electrostatic discharge To prevent damaging the system, be aware of the precautions you need to follow when setting up the system or handling parts. A discharge of static electricity from a finger or other conductor may damage system boards or other static-sensitive devices. This type of damage may reduce the life expectancy of the device. To prevent electrostatic damage: • Avoid hand contact by transporting and storing products in static-safe containers.
Electrostatic discharge
Index Numerics 2U12 large form factor (LFF) enclosure 67 2U24 small form factor (SFF) enclosure 67 A accessing CLI (command-line interface) 42 SMU (storage management utility) 45 web-posted documentation 11 audience 11 C cables Ethernet 39 FCC compliance statement 39, 67 routing requirements 66 SAS 38 SAS expansion cable requirements 25 shielded 39, 67 USB for CLI 42 cabling connecting controller and drive enclosures 24 direct attach configurations 38 cache read ahead 20 self-refresh mode 60 write-through
isolating expansion port connection fault 53 host-side connection 52 methodology 47 H help, obtaining 13 host interface ports SAS host interface protocol SFF-8088 37 HP customer self-repair (CSR) 13 product warranty 13 related documentation 11 Subscriber’s choice web site 13 technical support 13 web sites 14 humidity non-operating range 68 humidity operating range 68 M MPIO DSM, obtaining 37 N non-operating ranges, environmental 68 I IDs, correcting for enclosure 48 installing enclosures installation ch
shock non-operating range 68 shock operating range 68 site planning EMC 65 local management host requirement 66 physical requirements 67 safety precautions 65 SMU accessing web-based management interface 45 defined 45 getting started 45 storage system configuring and provisioning 45 storage system setup configuring 45 provisioning 45 Subscriber’s choice, HP 13 super-capacitor pack 21 T technical support, HP 13 temperature non-operating range 68 temperature operating range 68 troubleshooting 47 controller f
Index
