HP 216886-B21 AIT Drive Reference Guide - Page 43

Resolving Operating Problems, Correcting Intermittent Failures

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Troubleshooting the AIT Drive Resolving Operating Problems If the AIT tape drive worked previously but now does not, try the following: 1. Clean the tape drive heads. 2. Use TSMC to test your drive and media. Both Standard and Custom tests are available. Refer to the Compaq Tape Storage Management Console User Guide for specific instructions on running these tests. 3. Replace the tape. 4. If multiple tape drives are used, make sure that on each SCSI bus, each tape drive has a unique SCSI ID. 5. Your drive should be shipped from the factory with all terminators removed. Verify that all terminators have been removed. 6. Determine what has changed in the system since the last tape backup. a. If the system configuration has been changed, try removing the change to see if it affects the tape backup system. b. If a board or option has been added, check its DMA, IRQ, and port address settings for conflicts. Try removing the board or option. c. If a SCSI device has been added, check for SCSI ID conflicts and proper termination. 7. Check the AIT tape drive connections. Reseat the controller, SCSI signal cable, and power cable. 8. Replace the cables, tape drive, and finally, the controller. Correcting Intermittent Failures If the AIT tape drive works only intermittently: 1. Clean the tape drive heads. 2. For Intel-based computers, use TSMC to test your drive and media. Both Standard and Custom tests are available. Refer to the Compaq Tape Storage Management Console User Guide for specific instructions on running these tests. For AlphaServers, use show config at the SRM console. AIT Drive Reference Guide 5-7

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AIT Drive Reference Guide
5–7
Troubleshooting the AIT Drive
Resolving Operating Problems
If the AIT tape drive worked previously but now does not, try the following:
1.
Clean the tape drive heads.
2.
Use TSMC to test your drive and media. Both Standard and Custom tests are
available. Refer to the
Compaq Tape Storage Management Console User Guide
for specific instructions on running these tests.
3.
Replace the tape.
4.
If multiple tape drives are used, make sure that on each SCSI bus, each tape drive
has a unique SCSI ID.
5.
Your drive should be shipped from the factory with all terminators removed.
Verify that all terminators have been removed.
6.
Determine what has changed in the system since the last tape backup.
a.
If the system configuration has been changed, try removing the change to see
if it affects the tape backup system.
b.
If a board or option has been added, check its DMA, IRQ, and port address
settings for conflicts. Try removing the board or option.
c.
If a SCSI device has been added, check for SCSI ID conflicts and proper
termination.
7.
Check the AIT tape drive connections. Reseat the controller, SCSI signal cable,
and power cable.
8.
Replace the cables, tape drive, and finally, the controller.
Correcting Intermittent Failures
If the AIT tape drive works only intermittently:
1.
Clean the tape drive heads.
2.
For Intel-based computers, use TSMC to test your drive and media. Both Standard
and Custom tests are available. Refer to the
Compaq Tape Storage Management
Console User Guide
for specific instructions on running these tests.
For AlphaServers, use
show config
at the SRM console.