HP StorageWorks DAT Tape Drives User Guide Installation, Operating and Troubleshooting information for DAT SCSI tape drives Part number: DW009-90902 First edition: April 2005
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Contents About this guide7 Related documentation . . . . Registering your tape drive . HP technical support . . . . . HP-authorized reseller . . Helpful web sites . . . . . .. .. .. .. .. Contents ...................................... 7 . . . . . .. .. .. .. . . . . .. .. .. .. ................................. ................................. ................................. ................................. 7 7 8 8 1 Before you start . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5 Installing a removable DAT tape drive . . . . . . . . . . . . . . . . . . . . . . . 29 Which rackmount systems can I use?. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Airflow requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . How do I connect the drive to my server? . . . . . . . . . . . . . . . . . . . . . . . . . . . . Install the drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
To reconnect your tape drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55 A SCSI configuration guide . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57 SCSI in HP StorageWorks DAT devices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . SCSI terminology . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Setting up the SCSI bus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
About this guide This guide provides information about: • Installing the HP StorageWorks DAT tape drive • Using the HP StorageWorks DAT tape drive • Troubleshooting the HP StorageWorks DAT tape drive Related documentation In addition to this guide, please refer to other documents for this product: • ‘Start here’ poster for an overview of the installation information in this guide (available in English, French, German and Japanese) These and other HP documents can be found on the HP documents web site: http
• After signing up, you can quickly locate your products by selecting Business support and then Storage under Product Category. HP-authorized reseller For the name of your nearest HP-authorized reseller: • In the United States, call 1-800-345-1518. • Elsewhere, visit the HP web site: http://www.hp.com. Then click Contact HP to find locations and telephone numbers. Helpful web sites For third-party product information, see the following HP web sites: • http://www.hp.com • http://www.hp.
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 72 For a detailed product specification, please refer to our World Wide Web site (www.hp.com).
• Do not attach the drive to the same SCSI bus as your disk drive or to a RAID controller (unless you are connecting to a ProLiant server with a Smart Array 6i RAID controller). You will need a properly installed and configured SCSI host bus adapter (HBA) or a built-in SCSI controller on your server and a suitably-rated SCSI cable.
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 2 Power requirements Voltage Typical Current Maximum Current 5V 3.5 A 4.0 A 12 V 0.3 A 1.7 A Mounting hardware For many servers, no mounting tray or rails are required. Devices simply slide into the server’s chassis and are fixed with screws.
Before you start
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. IMPORTANT: We strongly recommend that you use the installer package on the HP StorageWorks CD-ROM to install the driver BEFORE you connect the tape drive.
Upgrade backup software It is important to check www.hp.com/go/connect for software compatibility and install any recommended upgrades. For optimum performance it is important to use a backup application that is appropriate for your system’s configuration. In a direct attach configuration, where the tape drive is attached to a standalone server, you can use backup software that is designed for a single server environment.
3 Installing an internal DAT tape drive If you are installing an external DAT tape drive, please refer to Chapter 4. If you are installing a removable DAT tape drive, please refer to Chapter 5. Check the drive’s SCSI ID Your HP StorageWorks DAT drive is shipped with a default SCSI ID of 3. Each device on the SCSI bus must have an unique SCSI ID number. The drive can be assigned any unused ID between 0 and 15. Do not use SCSI ID 7, which is reserved for the SCSI controller.
The UNIX Configuration Guide on the HP StorageWorks Tape CD-ROM also contains instructions on how to determine the SCSI IDs of existing devices on UNIX servers. 2. Change the tape drive’s SCSI ID, if necessary. The SCSI ID is set using jumpers on a set of pins at the rear of the drive, as shown in figure 3. Use tweezers or small pliers to move the jumpers to the pattern corresponding to the ID you want. Do not remove the TP jumper. It should always be set. NOTE: Spare jumpers will be attached to the drive.
Figure 3 Removing cover from typical ProLiant server Figure 4 Removing cover from typical AlphaServer 4. 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” on page 23. 5. You are now ready to install your tape 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 and connect power cable” on page 21 now. CAUTION: Static electricity can damage electronic components. Always wear an antistatic wriststrap if 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.
Mounting rails Some HP ProLiant servers, such as ML530 and ML570, require mounting rails. These may be metal or plastic rails attached to the filler panel of the server's drive bay. 1. Use a regular Phillips screwdriver to attach the appropriate rails. Use the M3 screws provided with the tape drive, as shown in Figure 5. Ensure you do use the 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.
Mounting screws Other HP ProLiant server models, such as ML350 and ML370, only require the use of special locating screws with no mounting rail. 1. Use a Torx screwdriver to attach the appropriate screws. You may need to purchase the M3 screws separately. Position the screws, as shown in Figure 6. Figure 6 Attaching mounting screws 1 2 1 M3 mounting screws 2 M3 offset mounting screws • HP ProLiant ML350: Use M3 mounting screws. These have a thicker head than the standard M3 screws.
Install drive and connect power cable 1. Slide the tape drive into the open bay, aligning the tray or rails with the slots in the bay, as shown in Figure 7. Figure 7 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. Do not secure the drive at this point because you may have to move the drive to get the cables into place.
4. If the drive is the last device on the SCSI chain, make sure that the SCSI cable is terminated correctly.
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. Termination is normally enabled by default on the HBA and most internal SCSI cables have a terminator attached. This will usually be a small, rectangular block of plastic attached to the cable end and marked ‘SCSI Terminator’.
2. Ensure blanking plates are in place over empty bays and replace the cover on the server. No mounting hardware used 1. 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 10. Figure 10 Securing drive, no mounting hardware used 1 1 M3 screws, supplied with tape drive 2.
4 Installing an external DAT tape drive If you are installing an internal DAT tape drive, please refer to Chapter 3. If you are installing a removable DAT tape drive, please refer to Chapter 5. Check the drive’s SCSI ID Your HP StorageWorks DAT drive is shipped with a default SCSI ID of 3. Each device on the SCSI bus must have an unique SCSI ID number. The drive can be assigned any unused ID between 0 and 15. Do not use SCSI ID 7, which is reserved for the SCSI controller.
The UNIX Configuration Guide on the HP StorageWorks Tape CD-ROM also contains instructions on how to determine the SCSI IDs of existing devices on UNIX servers. 2. Change the tape drive’s SCSI ID, if necessary. Use a small screwdriver or a ball-point pen to press the indented SCSI ID selector buttons on the rear panel (see Figure 12) until the required value is displayed. Do not use a pencil because small bits of graphite could contaminate the drive.
3. Attach the VHD connection on the SCSI cable to the server’s external SCSI connector and secure it by tightening the screws. Figure 12 Connecting the SCSI cable 1 1 LVD SCSI terminator 4. 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. 5. Connect the LVD terminator to the drive’s other SCSI connector and tighten the screws to secure it.
Connect the power cable An external HP StorageWorks DAT drive will operate using any voltage in the range 100–240 volts (0.7 A, 50-60 Hz). No adjustment is needed. To connect your drive to the power supply, proceed as follows: 1. Make sure that the drive is switched OFF (O side down). The power switch is on the rear panel. 2. Plug the power cable securely into the socket on the rear panel of the drive. 3. Plug the other end of the power cable into the power outlet.
5 Installing a removable DAT tape drive If you are installing an internal DAT tape drive, please refer to Chapter 3. If you are installing an external DAT tape drive, please refer to Chapter 4. Which rackmount systems can I use? HP StorageWorks DAT removable tape drives are used in conjunction with the HP Tape Array 5300 system, which can be used with both full-height and half-height tape drives. It will hold up to four HP StorageWorks DAT tape drives.
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. 1. Before installing a tape drive, make sure that the extractor lever is in the fully open position (pulled out). Figure 14 Extractor lever on tape drive fully open 1 1 extractor lever, open CAUTION: When handling a tape drive, hold the drive by the side carrier framework.
3. Push on the extractor lever to complete the insertion and to lock the tape drive in place. Figure 15 Inserting the tape drive 4. 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.
For many operating systems you can install HP Library & Tape Tools from the HP StorageWorks Tape CD-ROM and run the “Install Check” to check your computer’s current SCSI configuration (see ”Diagnostic tools” on page 49). This will provide information about the SCSI bus and the SCSI IDs in use. The UNIX Configuration Guide on the HP StorageWorks Tape CD-ROM, also provides instructions on how to determine the SCSI IDs of existing devices. 2. Set the appropriate switch.
Replacing the drive HP StorageWorks DAT removable drives can be removed and replaced without powering down the tape array. However you should be aware of the following: • If all drives in the tape array are powered up when the system is turned on, the host will be aware of those drives. You can remove any of those drives and replace it with another drive as long as there is no activity on the bus.
2. Using the extraction lever, pull the drive gently and firmly out of the tape array. Figure 18 Removing the tape drive 3. To insert another drive, follow the instructions in ”Install the drive” on page 30.
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. 1. Switch on the drive and the server. 2. The tape drive will run its hardware self-test, which takes about 5 seconds. At the end of the hardware self-test, both front panel lights should be off.
Verify installation
7 Operating your tape drive Front panel Figure 19 Front panel, external drive 1 2 5 4 1 cartridge door 2 eject button 3 clean LED 4 tape LED 5 power LED (external drives only) 3 HP StorageWorks DAT Tape Drives User Guide 37
There are two LEDs, labeled Tape and Clean. The meaning of different patterns of LEDs is as follows: Tape LED 38 Clean LED Meaning on off The cartridge is loaded and the drive is ready. flashing slowly off The cartridge is loading or unloading, or self-test is in progress. flashing rapidly off The cartridge is loaded, activity is occurring. any off or flashing on This is the Error Condition Signal. HP StorageWorks DAT drives perform a comprehensive self-test during power-up.
Loading and unloading Inserting cartridges Figure 20 Inserting a cartridge, external drive 1 2 1 cartridge door 2 arrow indicates leading direction 1. Insert a cartridge into the slot on the front panel. As the cartridge is inserted, the drive takes it and performs a load sequence. 2. The Tape light flashes green while the drive performs its load sequence. When the cartridge is loaded, the Tape light shows steady green.
Removing cartridges CAUTION: Never try to remove a cartridge before it is fully ejected. 1. Press the Eject button on the front panel. Figure 21 Ejecting a cartridge, external drive 1 1 eject button 2. The drive completes any task it is currently performing, winds the tape to the beginning, and ejects the cartridge. The sequence will take about 25 seconds for a write-enabled cartridge and 10 seconds for a write-protected cartridge.
8 Use the correct media For best performance we recommend HP branded media. Order online at: 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 For optimum performance and storage capacity, use tape cartridges that match your drive's format, and normally use only one cartridge per day.
Write-protecting cartridges If you want to protect the data on a cartridge from being altered or overwritten, you can write-protect the cartridge. Figure 22 Write protecting a cartridge 1 1 tab closed, cartridge write-enabled 2 tab open, cartridge write-protected 2 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.
1. Insert a cleaning cartridge into the drive. The tape drive automatically loads the cartridge and cleans the heads. At the end of the cleaning cycle, the drive ejects the cartridge. The cleaning cycle takes approximately 30-60 seconds. If the cleaning cartridge is not ejected, it has probably expired. In this case, press the Eject button, discard the cleaning cartridge and repeat the operation with a new one. 2. Remove the cleaning cartridge from the drive.
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 www.hp.com/go/connect.
Refer to the HP OBDR web site at www.hp.com/go/obdr for more information about using this feature and compatibility. Testing for compatibility We recommend that you perform a full disaster recovery immediately after installation—if possible, onto a blank hard disk. If you do not have a blank hard disk and do not want to overwrite your system, you can safely cancel the disaster recovery process at step 3 in the following procedure. Refer to our connectivity web site (www.hp.
Recovery process. Release the button as soon as the Tape light and the Clean light on the front panel flash alternately, which is the OBDR sequence. Figure 24 Keeping eject button pressed down, power on in OBDR mode + external drives only, switch on tape drive before server Keyboard shortcut for HP ProLiant servers There is no need to press the Eject button. Just power on your server and press the [F8] function key during the Power On Self Test (POST). This invokes OBDR to restore your system.
Using HP OBDR
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. It is supported on nearly all major operating systems. See www.hp.com/support/tapetools for compatibility information, updates and the latest version of the tool.
• 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 around 20 minutes. HP recommends running this test before calling HP Support. You will need to provide a ‘trusted’ cartridge that can be written to during this test. • Generate a support ticket: this is a full dump of the drive logs along with interpretation and is used by HP Support to learn about the condition of your drive.
11 Troubleshooting Many users can use HP Library & Tape Tools to help them diagnose problems, see ”Diagnostic tools” on page 49. We also recommend the detailed troubleshooting guide at 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.
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. Consult the computer’s operating manuals, the software manual, or seek help from a service engineer. Problems with cartridges If you experience any problems using HP branded cartridges, check: • The cartridge case is intact and that it contains no splits, cracks or damage. • The cartridge has been stored at the correct temperature and humidity.
6. 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 page 49.
Troubleshooting
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. To disconnect your drive 1. Unpack your replacement drive, and retain the packaging. 2. Power off the server and any other devices that are on the same SCSI bus. 3. Remove the cover from the server. 4. Observing normal anti-static precautions (see page 18) remove any screws that are holding the tape drive in place. 5.
Replacing an internal tape drive
A SCSI configuration guide SCSI in HP StorageWorks DAT devices The HP StorageWorks DAT 72 tape drive is an Ultra160 SCSI-2 compatible device. It is designed to operate on a low voltage differential (LVD) SCSI interface. It is not compatible with high voltage differential (HVD) SCSI devices. The drives support a burst transfer rate of 160 MB/sec. To benefit from this level of performance, it is important to ensure that the drives are connected to a SCSI bus of a similar or higher specification.
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 www.hp.com/go/connect). SCSI ID numbers For wide SCSI buses, the SCSI ID will be a number from 0 through 15, so a typical wide SCSI HBA can accommodate up to fifteen other devices.
If none of these is available to you, try the following sources of information: • The details of all installed devices and settings may have been written down and stored with your computer's documentation (for new computers, this is often done by the supplier). • Your HBA's documentation should tell you which settings it uses. • Look at each device to find out its ID. This is usually easy with external devices.
Internal drives A suitably terminated LVD internal ribbon cable is supplied with the tape drive. The terminator is usually a small, rectangular block of plastic attached to the cable end and marked ‘SCSI Terminator’. Figure 25 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.
Make sure the terminator is firmly attached to the SCSI-OUT connector on the rear of the device when you install it. With the HP StorageWorks DAT 72 drive always use the supplied LVD terminator for proper operation. Figure 26 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.
Removable drives For HP StorageWorks DAT removable tape drives, termination is provided by connecting a terminator to the spare SCSI connector on the rear of the tape array. There are two connectors for each bay in the tape array. It doesn't matter which is used for SCSI-IN and SCSI-OUT. If you have each removable drive in the tape array attached to a separate bus, then, for each bay in use, you must attach a terminator to the spare connector for each device.
With external devices The cable provided with all HP StorageWorks DAT external tape drives and autoloaders will attach to a computer with a wide, very high density (VHD), LVDS SCSI connector. If your server or host bus adapter is equipped with a high density (HD) wide SCSI connector, you will need to order a 68-pin VHD-to-HD converter or 68-pin VHD-to-HD cable. See www.hp.com/go/connect.
SCSI configuration guide
