HP StorageWorks Ultrium 448 User Manual Download Page 30 | Manualshive

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1. Replacement SAS cable

3. Connect replacement SAS cable to disk bay

2. Connect replacement SAS cable to host SAS

HBA

4. SAS connector to tape drive

Figure 11 Cable routing with replacement SAS cable

5.

Attach the SAS cable to the SAS connector on the tape drive and connect a spare power cord

from the server’s internal power supply to the power connector on the tape drive, as shown in

Figure 12

on page 31.

30

Installing an internal Ultrium tape drive

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Summary of Contents for StorageWorks Ultrium 448

Page 1: ...HP StorageWorks Ultrium half height SAS Tape Drives User Guide Part number EH919 90905 Second edition September 2007 ...

Page 2: ...e construed as constituting an additional warranty HP shall not be liable for technical or editorial errors or omissions contained herein Linear Tape Open LTO LTO Logo Ultrium and Ultrium Logo are trademarks of Certance HP and IBM in the US other countries or both Patented under one or more of U S Patents Nos 5 003 307 5 016 009 5 463 390 5 506 580 held by Hi fn Inc Microsoft Windows Windows NT an...

Page 3: ...are 19 Install drivers 19 Installing on Windows 19 Installing on UNIX 19 Installing on IA64 19 Upgrade backup software 19 Enabling encryption 20 3 Installing an internal Ultrium tape drive 21 Before you start 21 Mounting requirements 22 Remove server cover all servers 23 Attach mounting hardware some servers 23 HP ProLiant servers 23 Mounting rails 24 Mounting screws 24 Other servers 25 Install dr...

Page 4: ... 59 Cleaning cartridges 59 Data cartridges 59 HP Ultrium WORM data cartridges 60 Ultrium 1760 tape drives and encryption 60 When should I use encryption 61 How do I enable encryption 61 When will I be asked to enter the key 61 What happens if I don t remember the key 61 Does encryption affect tape drive performance 61 Does the tape drive encrypt media in an earlier Ultrium format 61 Where can I ge...

Page 5: ...ences 74 Problems with cartridges 76 The cartridge is jammed 76 The drive will not accept the cartridge or ejects it immediately 78 12 Replacing a tape drive 79 To disconnect your drive 79 To reconnect your tape drive 79 Index 81 Ultrium half height SAS Tape Drives 5 ...

Page 6: ...cker for disconnected hard disk bay some HP ProLiant servers 31 14 Cabling to a new HBA 32 15 Connecting cables to the tape drive 33 16 Securing drive mounting hardware used 34 17 Securing drive no mounting hardware used 35 18 Decision tree for connecting external tape drive 38 19 Cabling to the spare SAS port on host controller 40 20 Securing the blanking plate 41 21 Connecting the cables to the ...

Page 7: ...34 Inserting cartridge for OBDR 66 35 Powering on in OBDR mode 66 Ultrium half height SAS Tape Drives 7 ...

Page 8: ...ns for internal tape drives 16 3 Locating the appropriate installation instructions for external tape drives 17 4 Power specifications 18 5 Data cartridge compatibility 60 6 Environmental specifications for Ultrium tape drives 73 7 LED sequences 74 8 Data cartridge compatibility 78 8 ...

Page 9: ...m the Manuals page of the HP Business Support Center website http www hp com support manuals In the Storage section click Tape Storage and Media and then select your product Document conventions and symbols Table 1 Document conventions Convention Element Blue text Table 1 on page 9 Cross reference links and e mail addresses Blue underlined text http www hp com website addresses Bold text Keys that...

Page 10: ...ting system type and revision level Detailed questions Product warranties For information about HP StorageWorks product warranties see the warranty information website http www hp com go storagewarranty Registering your tape drive Once you have installed and tested your HP StorageWorks Ultrium tape drive please take a few minutes to register your product on the following website http www register ...

Page 11: ...ategory 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 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 bec...

Page 12: ...12 About this guide ...

Page 13: ...SAS tape drives HP StorageWorks Ultrium 1760 internal and external tape drives HP StorageWorks Ultrium 920 internal and external tape drives HP StorageWorks Ultrium 448 internal and external tape drives 1 Cassette door 5 Drive LED 2 On Off switch external drives only 6 Ready LED 3 Clean LED 7 Eject button 4 Tape LED Figure 1 Front view of half height Ultrium external tape drive Important informati...

Page 14: ... with conventional parallel SCSI disk drives and controllers you will need to purchase and install one of the supported HBAs alternatively you may wish not to connect this unit and instead purchase an HP StorageWorks Ultrium SCSI Tape Drive Refer to www hp com go connect Always refer to http www hp com go connect BEFORE you install your tape drive to find out If connecting to your SAS server is su...

Page 15: ...nnecting to HP server Host HBA has external port OPTION 1 Connect to spare internal port Yes Yes OK to lose disk bay Yes Yes Server has spare PCI slot for cable Host HBA has spare internal port No Need to disconnect disk bay No No No Yes No No Server has spare PCI slot for new HBA Cannot install SAS tape drive No Yes Yes Yes OPTION 2 Replace existing SAS cable Cannot install SAS tape drive No Inst...

Page 16: ... and all non HP servers on page 31 Non HP servers Option 3 Install new HBA connection to host HBA not supported Do not modify the existing SAS configuration Purchase an additional HBA and use the split cable supplied with the tape drive to connect to an internal port on the new host HBA See Option 3 Connect to a new HBA some HP ProLiant servers and all non HP servers on page 31 Rack mount drives S...

Page 17: ...page 42 Caution is advised for this cabling option because you may lose the use of one of your hard disk bays If this is the case and the hard disk drive bay is required use for now or in the future you must install a new HBA We recommend an HBA with an external SAS connector option 3 see Installing an external Ultrium tape drive by connecting to an external SAS port on page 49 HP ProLiant connect...

Page 18: ... 0 7A maximum 100 240 VAC 50 60 Hz auto ranging 0 7A maximum Using the HP StorageWorks Tape CD ROM The HP StorageWorks Tape CD ROM is a central source of information about your tape drive with utilities for getting the best performance from your tape drive Use the HP StorageWorks Tape CD ROM to check installation as described in this guide and to verify and troubleshoot performance after installat...

Page 19: ...m support We recommend that these are installed after using the installer on the CD ROM Installing on UNIX The recommended backup applications use the operating system s standard built in device drivers To upgrade drivers we recommend that you patch to the latest version of the operating system or configure device files as described in the UNIX Configuration Guide on the CD ROM Installing on IA64 ...

Page 20: ... use this feature if your system configuration and backup application also support it See Compatibility on page 65 4 Make sure you have a backup application that supports HP StorageWorks Ultrium tape drives and download any upgrades or patches if required Enabling encryption Your HP Ultrium 1760 tape drive includes hardware capable of performing data encryption while writing and data decryption wh...

Page 21: ...rnal Ultrium tape drive by connecting to an internal SAS port on page 37 or Installing an external Ultrium tape drive by connecting to an external SAS port on page 49 Before you start Always refer to http www hp com go connect to find out which cabling option is appropriate for your combination of server and tape drive Select tape backup and navigate down to the Hardware Compatibility table for yo...

Page 22: ... servers no mounting tray or rails are required Devices simply slide into the server s chassis and are fixed with screws Other servers have built in trays or rails Rail kits for a number of industry standard servers may be available For more details refer to http www hp com go connect Some servers use non standard mounting rails and do not include spares If this is the case with your system you wi...

Page 23: ...er the new drive into place If you have to do this make a note of their position and connections so you can put them back correctly later NOTE The server must provide forced cooling and be capable of drawing 6 cfm 0 17 m3 minute or 10 08 m3 hour of air through the tape drive at up to 400 C ambient operation This reduces to 4 cfm at 350 C ambient operation Ensure that empty bays have the appropriat...

Page 24: ...nsure you do use the 6 mm M3 screws provided The rails may be attached to the filler panel by screws of a different thread size type and these should not be used If the screws are too long they may penetrate the mechanism and void the warranty Mounting screws Other HP ProLiant server models such as ML350 and ML370 only require the use of special locating screws with no mounting rail Use a T8 Torx ...

Page 25: ... mounting rails attached to the filler panel These can be removed and attached to the tape drive with screws Install drive all servers NOTE If cable access for the tape drive bay is awkward it may be easier to access power and other connections if the tape drive is installed in the top bay You may need to move other devices to lower bays to achieve this Refer also to your server documentation Slid...

Page 26: ... hard disk drive bays This configuration is suitable for some HP ProLiant servers only and if it does disconnect a hard disk drive bay you must be sure that the bay is not required for use Do not move a hard disk to create an empty bay because you may damage your server configuration This cabling option is described as Option 2 in this section Purchase and install an additional SAS HBA and connect...

Page 27: ...rt on the host SAS controller 1 SAS cable supplied with tape drive 4 Host SAS controller 2 Connect SAS cable to spare SAS port 5 Connector for tape drive 3 Unused connector on SAS cable Figure 8 Cabling to the spare SAS port some HP ProLiant servers 2 Connect the other end of the SAS cable to the tape drive and connect a spare power cord from the server s internal power supply to the power connect...

Page 28: ...ome HP ProLiant servers but ONLY IF recommended as an option on http www hp com go connect This installation uses the supplied split cable to replace the existing SAS cable from the host SAS controller to the server s SAS hard disk drive bays It diverts the cabling from one of the hard disk drive bays to the tape drive You should be aware that you may lose the use of a hard disk drive bay with thi...

Page 29: ...t purchase and in stall an additional HBA see http www hp com go connect for supported products Go to Option 3 Connect to a new HBA some HP ProLiant servers and all non HP servers on page 31 for cabling instructions 3 Remove the existing SAS cable 1 Host SAS controller HBA 3 Rear of server 2 Cable to be removed 4 Front of server Figure 10 Removing the existing SAS cable 4 Connect the replacement c...

Page 30: ...onnector to tape drive Figure 11 Cable routing with replacement SAS cable 5 Attach the SAS cable to the SAS connector on the tape drive and connect a spare power cord from the server s internal power supply to the power connector on the tape drive as shown in Figure 12 on page 31 30 Installing an internal Ultrium tape drive ...

Page 31: ...y it will not work This does not mean there is a fault with either the disk or the server Figure 13 Sticker for disconnected hard disk bay some HP ProLiant servers 7 Now go to Secure the drive all servers on page 33 Option 3 Connect to a new HBA some HP ProLiant servers and all non HP servers The following instructions are valid ONLY IF you have purchased and installed an additional HBA See Figure...

Page 32: ...t SAS cable to new HBA 5 Connector for tape drive 3 Unused connector on SAS cable Figure 14 Cabling to a new HBA 3 Connect the other end of the SAS cable to the tape drive and connect a spare power cord from the server s internal power supply to the power connector on the tape drive 32 Installing an internal Ultrium tape drive ...

Page 33: ... interfere with other components inside the server 5 Now go to Secure the drive all servers on page 33 Secure the drive all servers NOTE The server latches and side views of your server model may not be exactly the same as shown in the illustrations Please also refer to your server documentation Mounting hardware used Ensure that you use the correct mounting rails or locating screws as described i...

Page 34: ... Use the M3 screws provided with the tape drive in the screw pack labeled General Mounting Screws Check that the holes in the chassis are aligned with the holes in the sides of the drive and use a regular Phillips screwdriver to secure the M3 screws as shown in Figure 17 on page 35 If you cannot tighten the screws use the washers provided in the pack 34 Installing an internal Ultrium tape drive ...

Page 35: ...he server to power up the tape drive and server Watch the boot screen carefully after installation If there are any error or unexpected messages go back and check the SAS cabling carefully Have you replaced the correct SAS cable Have you reconnected all devices securely If this does not resolve the problem refer to Troubleshooting on page 73 for further guidelines Ultrium half height SAS Tape Driv...

Page 36: ...36 Installing an internal Ultrium tape drive ...

Page 37: ...supplied SAS cable to connect the tape drive to a spare internal SAS port on the host SAS controller or to an internal port on a new HBA Option 1 Use the supplied SAS cable to replace one of the existing SAS cables to the hard disk drive bays Option 2 This requires some recabling inside the server and also disconnects one of the hard disk drive bays This configuration is suitable for some HP ProLi...

Page 38: ...stantly being updated Always refer to http www hp com go connect to find out which cabling option is appropriate for your combination of server and tape drive and whether hard disk drive bays will be disconnected Select tape backup and navigate down to the Hardware Compatibility table for your make of server The server tape drive matrix shows top level compatibility but be sure to click on the box...

Page 39: ...any connected peripherals Ensure that the server is disconnected from the mains power supply 4 Remove the cover and front panel from the server as detailed in your server s documentation As you work inside the server you may have to disconnect other signal cables or power cords from other devices to maneuver the new drive into place If you have to do this make a note of their position and connecti...

Page 40: ...able supplied with the tape drive to the spare SAS port on the host SAS controller 1 SAS cable supplied with tape drive 3 Unused connector on SAS cable 2 Connect SAS cable to spare SAS port 4 Host SAS controller Figure 19 Cabling to the spare SAS port on host controller 3 This will leave unused SAS cabling within the server because the other SAS connector is not required in this configuration Coil...

Page 41: ...ate to the outside of the server to the connector on the rear of the tape drive 6 Plug the power cord securely into the socket on the rear panel of the drive and plug the other end of the power cord into the power outlet The power on off switch is on the front panel 1 SAS connector 3 Power on off switch 2 Power connector Figure 21 Connecting the cables to the tape drive 7 Now go to Reboot the serv...

Page 42: ... one is available If not after you have disconnected power from the server and removed the cover touch a bare metal part of the chassis Similarly touch a bare metal part of the drive before installing it 1 HP strongly recommends that the tape drive is connected to the second SAS port on the host controller this is the port that connects to the hard disk drive bays with the highest numbers Look at ...

Page 43: ...ng SAS cable 4 Remove a blank PCI slot cover on the rear panel of the server This must be wide enough to accommodate the external tape drive connector on the SAS cable 5 Feed the external tape drive connector and cable through the empty slot from the inside of the server Ultrium half height SAS Tape Drives 43 ...

Page 44: ...ector for tape drive Figure 23 Feeding SAS cable through empty slot from inside of server 6 Connect the replacement cable supplied with the tape drive to the host SAS controller and attach the other end to the connector for the highest numbered disk bays 44 Installing an external Ultrium tape drive by connecting to an internal SAS port ...

Page 45: ...e 24 SAS cable routing 7 Make sure the blanking plate is secure on the rear panel and replace the cover on the server Figure 25 Securing the blanking plate IMPORTANT On some servers even those with latch mounted arrangements it is necessary to use the supplied screw to secure the blanking plate Ultrium half height SAS Tape Drives 45 ...

Page 46: ...e SAS connector because this may damage the drive For external drives always use the supplied power cord 10 If you have lost the use of a disk bay see Step 2 on page 42 we strongly recommend that you attach the supplied sticker to the blanking plate of the disk bay to show that it is disconnected NOTE If you subsequently install a hard disk in this bay it will not work This does not mean there is ...

Page 47: ...nexpected messages go back and check the SAS cabling carefully Have you replaced the correct SAS cable Have you reconnected all devices securely If this does not resolve the problem refer to Troubleshooting on page 73 for further guidelines Ultrium half height SAS Tape Drives 47 ...

Page 48: ...48 Installing an external Ultrium tape drive by connecting to an internal SAS port ...

Page 49: ...ibility table for your make of server The server tape drive matrix shows top level compatibility but be sure to click on the box for your combination of server and tape drive to display a further page with detailed connectivity information Non HP servers may have an active external port To connect to it you must purchase an additional cable If the server does not have an active external port you m...

Page 50: ...e to the external SAS connector on the new HBA 1 SAS connector on server Figure 28 Connecting the SAS cable to the server 3 Connect the SAS and power cords to the tape drive and plug the other end of the power cord into the power outlet 50 Installing an external Ultrium tape drive by connecting to an external SAS port ...

Page 51: ...e and 3 an unapproved power cord could fracture resulting in the internal contacts being exposed which potentially could subject the user to a shock hazard HP disclaims all liability in the event a non HP approved power cord is used Reboot the server Switch on the tape drive and power up the server The power on off switch is on the front panel Watch the boot screen carefully after installation If ...

Page 52: ...52 Installing an external Ultrium tape drive by connecting to an external SAS port ...

Page 53: ...and tape drive Either follow the on screen instructions to search for the required driver on the HP StorageWorks CD ROM or cancel the wizard and run the install package from the CD ROM Installing drivers other operating systems Drivers are included with the operating system and should be loaded automatically NOTE Certain backup applications require you to use their own Tape driver instead of the H...

Page 54: ...54 Verify installation ...

Page 55: ...also Understanding LED sequences on page 74 1 Cassette door 5 Drive LED 2 On Off switch external drives only 6 Ready LED 3 Clean LED 7 Eject button 4 Tape LED Figure 30 Front view of half height Ultrium external tape drive Loading a cartridge 1 Lift the cartridge door and insert the cartridge into the slot in the front of the drive with the white arrow uppermost and facing the drive door Ultrium h...

Page 56: ...loads it See Inserting a cartridge on page 56 3 The Ready light flashes green while the drive performs its load sequence When the cartridge is loaded the Ready light shows steady green Unloading a cartridge CAUTION Never try to remove a cartridge before it is fully ejected 1 Press the Eject button on the front panel 56 Operating your tape drive ...

Page 57: ...ject the cartridge The rewind process may take up to 10 minutes The Ready light will flash to indicate that the unload is still in progress Removing power from the drive To ensure reliable operation do not remove power from the drive during read write fast search load and unload activities Ultrium half height SAS Tape Drives 57 ...

Page 58: ...58 Operating your tape drive ...

Page 59: ...om other manufacturers Data cartridges Ultrium tape drives use Ultrium tape cartridges These are single reel cartridges that match your drive s format and are optimized for high capacity throughput and reliability Compatible media can be recognized by the Ultrium logo which is the same as the logo on the front of your drive Do not use other format cartridges in your tape drive and do not use Ultri...

Page 60: ...manently write protected It should still be readable in a WORM drive depending upon the severity of the tampering but no further appended backups will be possible WORM data cartridges are clearly identified by their distinctive two tone cartridge color They can only be used with Ultrium tape drives that support the WORM feature To check whether your backup or archive software application supports ...

Page 61: ...end the encrypted media without being prompted for a key as long as it is being accessed by the machine and application that first encrypted it There are two main instances when you will need to know the key If you try to import the media to another machine or another instance of the backup application If you are recovering your system after a disaster What happens if I don t remember the key If y...

Page 62: ...ample when copying tapes that may need changing if using encrypted tapes Write protecting cartridges WARNING Always remove the cartridge from the tape drive before you change the write protection If you want to protect the data on a cartridge from being altered or overwritten you can write protect the cartridge To write protect a cartridge push the switch to the right to prevent any data recording...

Page 63: ...e drive HP StorageWorks Ultrium tape drives do not require regular cleaning An Ultrium universal cleaning cartridge should only be used when the orange Clean LED is flashing 1 Insert the Ultrium universal cleaning cartridge 2 The drive will carry out its cleaning cycle and eject the cartridge on completion which can take up to 5 minutes During the cleaning cycle the orange Clean LED will be on sol...

Page 64: ...Stick labels onto the label area only Do not bulk erase or degauss Ultrium format cartridges because this will render them unusable Operating and storage environment To prevent condensation and for long life the cartridge should only be operated or stored as follows Operation 100 C to 450 C 500 F to 1130 F Day to day storage in plastic container 160 C to 320 C 600 F to 900 F Non condensing relativ...

Page 65: ...ard disk failures as long as the replacement hard disk is the same size or larger than the original and uses the same interface for example replace a SAS hard disk with another SAS disk Hardware failures where the server is replaced by an identical component File corruption because of an operating system error File corruption because of an application software error Viruses that prevent you from b...

Page 66: ...en different software companies Check our World Wide Web site http www hp com go obdr for the latest information about software compatibility firmware upgrades and troubleshooting before you use HP OBDR 1 Insert the latest bootable cartridge in the tape drive The cartridge must be written by a backup application that writes data to tape in CD ROM format Figure 34 Inserting cartridge for OBDR 2 Hol...

Page 67: ...4 The LEDs will flash in OBDR mode as described in step 2 while the tape drive restores your operating system to a state where it can run a normal data restore 5 Once the operating system has been set up and rebooted the Ready LED display on the tape drive changes to constant green and you can remove the backup cartridge if you wish You are now ready to run a normal data restore Follow the normal ...

Page 68: ...68 Using HP OBDR ...

Page 69: ...choices for troubleshooting Device identification shows part number serial number and information about any cartridge loaded Firmware upgrade allows you to locate and upgrade to the latest firmware You will need to be connected to the internet for this Run tests allows you to run proactive tests on your drive such as the drive assessment test which will verify the functionality of your drive in ar...

Page 70: ...compression The Ultrium 448 tape drive can write uncompressed data at up to 24 MB s 86 GB hour or compressed data at up to 48 MB s 172 GB hour assuming 2 1 compression To obtain this performance it is essential that your whole system can deliver this performance In most cases the backup application will provide details of the average time taken at the end of the backup Typical areas where bottlene...

Page 71: ...ompressible data Examples of files that compress well are plain text files spreadsheets those that compress poorly are those that are either compressed as part of their format such as JPEG photographic files or stored as compressed such as ZIP files or gz Z files on Unix platforms Ultrium half height SAS Tape Drives 71 ...

Page 72: ...72 Diagnostic Tools and Performance ...

Page 73: ...S controller If the problem persists you have probably disconnected a hard disk drive bay that was in use See Option 2 Connect cable to port on host SAS controller and replace existing SAS cable on page 28 for more information 4 Has the system booted but the operating system has not seen the tape drive Check that the drive has power the READY light should be illuminated If it is not check that the...

Page 74: ...ken The problem could lie with the drive 1 Check the cables and connectors 2 Clean the tape heads with the cleaning cartridge 3 If the problem persists check the environmental conditions against the specified limits see table above or refer to http www hp com Perhaps move the drive to a more suitable site Has a new operating system been installed in the host computer Has new backup software been i...

Page 75: ...HES and Clean is ON Cleaning is in progress None The cleaning cartridge will eject on completion The cleaning cycle can take up to 5 minutes to complete Tape FLASHES The drive believes the current tape or the tape just ejected is faulty Unload the tape cartridge Make sure that you are using the correct format cartridge an Ultrium data cartridge or Ultrium Universal Cleaning Cartridge See Use the c...

Page 76: ...med or the backup application is unable to eject it you can force eject the cartridge Once the cartridge is successfully ejected it is good practice to run Library Tape Tools to diagnose the problem and to upgrade the firmware If the failure occurs regularly contact customer service at http www hp com support 1 Attempt a drive unload eject operation from the backup software Many backup application...

Page 77: ...ORTANT Powering up with a tape in the drive can take several minutes Ensure that drive activity has stopped before attempting to eject waiting 10 minutes is a good rule of thumb It is important that you allow sufficient time for the drive to complete rewinding the cartridge If you interrupt it you may damage the media or the tape drive 8 Push the Eject button This step attempts to overcome unload ...

Page 78: ...nl write once read many read write C7974A nl write once read many C7974W Ultrium 920 read only read write read write C7973A nl write once read many C7973W not supported Ultrium 448 read write read write C7972A not supported not supported Capacity assumes 2 1 compression 3 Make sure that you have loaded the cartridge with the correct orientation see Inserting a cartridge on page 56 4 Check for dama...

Page 79: ...er and SAS cables Slide internal drives carefully out of the mounting bay 5 Put the drive into the packaging that contained the replacement drive 6 Return the faulty drive to your local HP Service Center Instructions on where to return faulty drives will be shipped with the replacement drive You must ship the defective drive back to HP within a defined period of time normally five 5 business days ...

Page 80: ...80 Replacing a tape drive ...

Page 81: ...ing 62 CD ROM using 18 cleaning cartridges 59 63 compatibility backup software 19 connect external drive to existing HBA recabling internal SAS port 42 spare internal SAS port 39 connect external drive to external SAS port 49 connect external drive to new HBA external SAS port 49 connect to existing HBA recable SAS port 28 spare SAS port 26 connect to new HBA 31 connecting SAS cables external driv...

Page 82: ...power on 53 loading cartridges 55 M media See cartridges models supported 13 mounting requirements 22 mounting screws warranty 24 O OBDR 65 compatibility 65 how to run 66 remote disaster recovery 65 testing for compatibility 66 what it does 65 One Button Disaster Recovery See OBDR operating systems 14 operation drives 55 55 P PCI slots required for external drive 38 performance assessment tools 70...

Page 83: ...13 powering off 57 UNIX drivers 19 Unload button 56 V verify installation 53 W warranty 10 mounting screws 24 websites HP 11 HP Subscriber s Choice for Business 10 product manuals 9 Windows drivers 19 WORM cartridges 60 write protect 62 Ultrium half height SAS Tape Drives 83 ...

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