Contents About this guide ......Intended audience ........Related documentation .
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Connect the SCSI cable ........Why does the tape drive need a terminator? ......Connect the power cable .
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12 Replacing an internal tape drive ....To disconnect your drive ........To reconnect your tape drive .
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Figures 1 ..Front view of HP StorageWorks DAT 160 tape drive ....2 ..Front view of HP StorageWorks DAT 72 and 40 tape drive ....3 ..Checking the SCSI ID .
About this guide This guide provides information about: • Installing the HP StorageWorks DAT SCSI tape drive • Using the HP StorageWorks DAT SCSI tape drive • Troubleshooting the HP StorageWorks DAT SCSI tape drive Intended audience This guide is intended for users who install, operate and maintain the HP StorageWorks DAT tape drive. Related documentation In addition to this guide, the following document provides related information: •...
CAUTION: Indicates that failure to follow directions could result in damage to equipment or data. IMPORTANT: Provides clarifying information or specific instructions. NOTE: Provides additional information. HP technical support For worldwide technical support information, see the HP support website: http://www.hp.com/support Before contacting HP, collect the following information: •...
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 become the property of HP. DAT SCSI Tape Drives...
1 Before you start HP StorageWorks DAT models This guide describes how to install and operate the following HP StorageWorks DAT SCSI tape drive models: • HP StorageWorks DAT 160 • HP StorageWorks DAT 72 • HP StorageWorks DAT 40 For a detailed product specification, please refer to our World Wide Web site (http://www.hp.com).
1. Clean LED 3. Eject button 2. Tape LED Figure 2 Front view of HP StorageWorks DAT 72 and 40 tape drive Which operating systems are supported? HP StorageWorks DAT SCSI drives can be connected to servers running under Windows®, NetWare, UNIX, Tru64, Linux and other major operating systems.
NOTE: The drives are not compatible with high voltage differential (HVD) SCSI devices. Table 2 Supported SCSI bus types SCSI Bus Type Supported Ultra160 LVD, Ultra320 LVD Yes. These are recommended configurations. Ultra2 LVD, Ultra Wide LVD Yes. These are supported, but performance may be impaired. Ultra wide, single-ended Yes.
What are the mounting requirements for an internal tape drive? Mounting bay You need one industry-standard, 5¼-inch, half-height bay in which to install the HP StorageWorks DAT tape drive. Power requirements are: Table 3 Power requirements Maximum Current Voltage Typical Current DAT 160 DAT 160 DAT 72/40...
2 Drivers and backup software Install drivers Installing on Windows One driver is required in order to use HP StorageWorks DAT SCSI tape drives. • hpdat: This is the tape driver that works with all HP DAT products. It is regularly updated and is available on the HP StorageWorks CD-ROM or on the HP Support web site.
device files, as described in the UNIX Configuration Guide on the CD-ROM. This guide also describes how to verify installation. NOTE: UNIX Configuration Guide also contains instructions for installing and verifying installation on Linux. Installing on IA64 If you are installing on an IA64 system, such as an HP Integrity server, check http://www.hp.com/go/ connect for the latest information on the availability of backup application upgrades and drivers.
3 Installing an internal DAT tape drive If you are installing an external DAT tape drive, please refer to “Installing an external DAT tape drive” on page 29. If you are installing a removable DAT tape drive, please refer to “Installing a removable DAT tape drive”...
For many operating systems you can install and run HP Library & Tape Tools from the HP StorageWorks Tape CD-ROM to check your server’s current SCSI configuration (see “HP Library & Tape Tools” on page 55). This will provide information about the SCSI bus and the SCSI IDs in use.
Figure 4 Removing cover from typical ProLiant server Figure 5 Removing cover from typical AlphaServer Remove the filler panel from a spare 5¼-inch bay of your server, as described in your server’s documentation. Keep any screws for use in “Secure the drive”...
Attach mounting hardware If your server requires special rails or other hardware to install the tape drive, mount them on the tape drive now. If your server does not require special mounting hardware, proceed to “Install drive” on page 24 now.
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 Torx screwdriver to attach the appropriate screws. You may need to purchase the M3 screws separately.
Install drive and connect power cable Slide the tape drive into the open bay, aligning the tray or rails with the slots in the bay, as shown in Figure 8 on page 24. Figure 8 Installing tape drive If your server does not use mounting hardware, check that the holes in the chassis are aligned with the holes in the side of the tape drive.
1 and 7. terminated SCSI cable 5. server’s power supply 2 and 4. power cable 6. SCSI controller 3. tape drive Figure 9 Connecting power and SCSI cables Where should the SCSI terminator be? Termination must be present at two and ONLY two positions on the SCSI bus—at the beginning of the SCSI bus and at the end of the SCSI bus.
Secure the drive NOTE: The server latches and side views of your server model may not be exactly the same as shown in the illustrations. Please refer also to you server documentation. Mounting hardware used (HP ProLiant) Ensure that you use the correct mounting rails or locating screws, as described in “Attach mounting hardware”...
No mounting hardware used Use the M3 screws provided with the tape drive. 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 11 on page 27.
4 Installing an external DAT tape drive If you are installing an internal DAT tape drive, please refer to “Installing an internal DAT tape drive” on page 19. If you are installing a removable DAT tape drive, please refer to “Installing a removable DAT tape drive”...
Use a small screwdriver or a ball-point pen to press the indented SCSI ID selector buttons on the rear panel (see Figure 13 on page 31) until the required value is displayed. Do not use a pencil because small bits of graphite could contaminate the drive. NOTE: The computer and the tape drive SCSI IDs are only checked at power-on.
1. LVD SCSI terminator Figure 13 Connecting the SCSI cable Attach the HD connection on the SCSI cable to one of the SCSI connectors on the rear panel of the tape drive and secure it by tightening the screws. Connect the LVD terminator to the drive’s other SCSI connector and tighten the screws to secure it. Why does the tape drive need a terminator? Terminators are essential, as they provide the correct voltages on the SCSI bus and prevent unwanted signal reflections from interfering with data transfers.
5 Installing a removable DAT tape drive If you are installing an internal DAT tape drive, please refer to “Installing an internal DAT tape drive” on page 19. If you are installing an external DAT tape drive, please refer to “Installing an external DAT tape drive”...
Install the drive HP StorageWorks DAT removable tape drives are designed to be installed in a rack-mounted HP Tape Array 5300. Refer to the documentation supplied with your tape array for tape array installation instructions. Before installing a tape drive, make sure that the extractor lever is in the fully open position (pulled out).
Figure 16 Inserting the tape drive If there are empty bays, insert a blanking plate. This is essential to ensure adequate airflow is maintained. Failure to do so may affect tape drive performance. Set the drive’s SCSI ID To set the tape drive’s SCSI ID you need to set the appropriate switch on the rear of the tape array. The number of address switches corresponds to the number of tape drives that can be inserted into the tape array.
S C S I S C S I B a y 4 S C S I B a y 3 S C S I B a y 2 B a y 1 Figure 17 SCSI address switch on tape array The HP Tape Array 5300 has four SCSI ID switches to enable the installation of up to four half-height drives.
Figure 18 Extractor lever in out position Using the extraction lever, pull the drive gently and firmly out of the tape array. Figure 19 Removing the tape drive To insert another drive, follow the instructions in “Install the drive” on page 34. DAT SCSI Tape Drives...
6 Verify installation Once you have installed the drive hardware, check that drivers have been installed correctly and you have the correct version of backup software, and verify that the tape drive is functioning properly before you store your valuable data. Switch on the drive and the server.
7 Operating your tape drive Front panel 1. cartridge slot 5. drive LED 2. power LED (external drives only) 6. ready LED 3. clean LED 7. eject button 4. tape LED Figure 20 Front panel, HP StorageWorks DAT 160 external drive DAT SCSI Tape Drives...
4. tape LED 1. cartridge door 2. eject button 5. power LED (external drives only) 3. clean LED Figure 21 Front panel, HP StorageWorks DAT 72 and DAT 40 external drive Operating your tape drive...
LED sequences for the HP StorageWorks DAT 160 tape drive The meaning of different patterns of LEDs is as follows: Table 4 LED sequences LED Sequence Cause Action required Drive may not have Make sure the drive is switched on. The power on/off power, may be switch incorporates a green LED.
LED Sequence Cause Action required The drive Load a new cartridge. If the error persists, power cycle mechanism has or reset the drive. detected an error. If the Drive LED remains on, call for service. Drive FLASHES. There is a firmware Insert a cartridge to clear the LED sequence.
Loading and unloading Inserting cartridges 1. cartridge slot 2. arrow indicates leading direction Figure 22 Inserting a DAT 160 cartridge into an HP StorageWorks DAT 160 external drive Insert a cartridge into the slot on the front panel. As the cartridge is inserted, the drive takes it and performs a load sequence.
Removing cartridges CAUTION: Never try to remove a cartridge before it is fully ejected. Press the Eject button on the front panel. 1. eject button Figure 23 Ejecting a DAT 160 cartridge from an HP StorageWorks DAT 160 external drive The drive completes any task it is currently performing, winds the tape to the beginning, and ejects the cartridge.
8 Use the correct media For best performance we recommend HP branded media. Order online at: http://www.hp.com/go/ storagemedia. If you do not have internet access, refer to the User’s Guide on the HP StorageWorks Tape CD-ROM for ordering information for tape cartridges and cleaning cartridges. Data cartridges HP StorageWorks DAT 160 tape drives and HP DAT 160 cartridges HP DAT 160 cartridges (C8011A) can only be used with HP StorageWorks DAT 160 tape drives;...
Write-protecting cartridges If you want to protect the data on a cartridge from being altered or overwritten, you can write-protect the cartridge. Always remove the cartridge from the tape drive before you change the write protection. • To write-protect a cartridge, slide the tab on the rear of the cartridge so that the recognition hole is open.
Table 6 Cleaning cartridge compatibility Tape drive model Cleaning cartridge required HP StorageWorks DAT 160 tape drives You must use a DAT 160 cleaning cartridge, part number C8015A All other HP StorageWorks DAT tape drives You must use a standard cleaning cartridge, part number C5709A Do not use swabs or other means of cleaning the heads.
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• If you want to bulk erase cartridges, this should be done in a controlled environment. You need to make sure there are no other cartridges with sensitive information on them anywhere near the bulk eraser when in use. All data will be lost on cartridges that are bulk erased. Use the correct media...
9 Using HP OBDR Compatibility HP One-Button Disaster Recovery is a standard feature on all HP StorageWorks DAT tape drives. However, it can only be used with specific configurations and will only recover the server to which the tape drive is directly connected. To check whether your system (hardware, operating system and backup software) is OBDR-compatible, please refer to our World Wide Web site http://www.hp.com/go/connect.
Refer to our connectivity web site (http://www.hp.com/go/connect) for more information about suitable backup applications. Running HP OBDR HP OBDR can only be used with backup applications that support one-button disaster recovery and methods of operating OBDR will vary between 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.
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. Once the operating system has been set up and rebooted, the Tape LED display on the tape drive changes to constant green and you can remove the backup cartridge, if you wish.
10 Diagnostic Tools and Performance Diagnostic tools HP Library & Tape Tools HP StorageWorks Library & Tape Tools is the recommended diagnostic and support tool for your HP tape storage product. It is available on the CD shipped with your product or as a free download from the HP web site.
Performance Assessment Tools You can use our free, standalone performance assessment tools to check tape performance and test whether your disk subsystem can supply data at the maximum transfer rate. The tools are located online at http://www.hp.com/support/pat along with a complete guide to understanding the performance needs of your backup system and recommendations on finding and fixing performance issues.
11 Troubleshooting Many users can use HP Library & Tape Tools to help them diagnose problems, see “Diagnostic tools” on page 55. We also recommend the detailed troubleshooting guide at http://www.hp.com/go/support for comprehensive troubleshooting information. General Procedure If a problem occurs, the first step is to try to establish whether the problem lies with the cartridge, the drive, the host computer and connections, or the way the system is being operated.
The problem could lie with the drive: Check the cables and connectors. Clean the tape heads with the cleaning cartridge. If the problem persists, check the environmental conditions against the specified limits (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 installed? The problem could lie with the host or the software.
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Check if another DAT drive of the same model will accept the cartridge. If it does, the original drive may be faulty. Before calling customer service, please check that the tape drive is responding. Use HP Library & Tape Tools, see “HP Library &...
12 Replacing an internal tape drive If your tape drive proves to be faulty and cannot be repaired and it is still covered by the original warranty, it will be replaced. HP will provide a replacement tape drive free of charge. Based on availability and where geography permits, the replacement tape drive will be shipped for next business day delivery.
13 SCSI configuration guide SCSI in HP StorageWorks DAT devices HP StorageWorks DAT tape drives are Ultra160 SCSI-2 compatible devices. They are designed to operate on a low voltage differential (LVD) SCSI interface. They are not compatible with high voltage differential (HVD) SCSI devices.
Setting up the SCSI bus Each device on a SCSI bus, including the SCSI host bus adapter (HBA), must be configured with a unique ID (identifier). The SCSI bus must be terminated. NOTE: HP recommends that a dedicated host bus adapter is used for the tape drive. A suitable adapter is available from HP as an accessory (see http://www.hp.com/go/connect.
Setting the SCSI ID on HP StorageWorks DAT drives See the relevant chapter of this User Guide for more details. Note that host adapters check SCSI IDs only at power-on, so any changes will not take effect until the host system is power-cycled. •...
Figure 27 SCSI termination in internal drives As long as this terminator is attached, you do not need to take any further action. However, if you have other devices attached to the cable, make sure that they have termination removed or disabled. NOTE: If you have an internal and external device attached to the same SCSI bus, the HBA will be in the middle of the cable and thus its termination must be disabled.
Figure 28 SCSI termination in external drives If you have more than one device on the SCSI bus, daisy-chain them by connecting a cable from the SCSI-OUT connector on the first device to the SCSI-IN connector on the second device and make sure that the second device is terminated.
device to one of the SCSI connectors for the second device and attach the terminator to the spare SCSI connector for the second device. Refer to your tape array documentation for detailed instructions. SCSI cables Cables matter in SCSI systems. There are two factors to consider: cable length and cable quality. Cable length •...
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• With low voltage differential (LVD) signaling, signals travel along two wires and the difference in voltage between the wire pairs determines the signal value. This enables faster data rates and longer cabling with less susceptibility to noise than SE signaling and reduced power consumption. If you use LVD SCSI devices on the same bus as single-ended devices this will switch the LVD SCSI host adapter into single-ended mode and restrict cable length.
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