T10000 - Slow Performance on Tape Drive

Asset ID:	1-72-1016831.1
Update Date:	2012-07-30
Keywords:

Solution Type Problem Resolution Sure

Solution 1016831.1 : T10000 - Slow Performance on Tape Drive

Applies to:

Sun StorageTek T10000A Tape Drive - Version Not Applicable and later
Sun StorageTek T10000B Tape Drive - Version Not Applicable and later
All Platforms
Checked for relevance on 30-July-2012.

Symptoms

Slow throughput
Poor throughput
Slow restore
Slow write speed
Reading tapes slow
Drive running slow
Slow performance
Backup running slow

Changes

{CHANGE}

Cause

{CAUSE}

Solution

Resolution
Steps to resolve Slow or Bad Performance:

Step 1. Has the suspect tape exhibited similar problems on another drive? NO - GO TO STEP 3

Step 2. Is tape available for examination at Oracle/STK headquarters? NO - GO TO STEP 9

If yes, GO TO STEP 5.

Step 3. Run Write/Read diagnostics using "FDE Run Test" through VOP on suspect transport with two known good tapes.

NOTE: VOP Release 1.0.7 and T10000 1.31.103 or higher is needed to support diagnostics.

Step 4. Did the diagnostic run successfully? NO - GO TO STEP 7

(Success = 1 tape passes)

Step 5. Open up Service Request and provide all documents/event logs/syslogs to Oracle Tape Hardware Support for analysis and document in the problem case. Instructions will be provided if tape must be returned.

Step 6. GO TO STEP 12.

Step 7. Replace drive. Put "Fails W/R diagnostic test" on Drive Return Form and in Problem Case.

Step 8. GO TO STEP 12.

Step 9. Is VOP available? NO - GO TO STEP 12

Step 10. Will the customer allow us to run tests with this tape in their environment? NO - GO TO STEP 12

Step 11. Run Write/Read diagnostics using "FDE Run Test" through VOP. Send all documents, etc to Oracle/STK headquarters for analysis and document in the problem case.

NOTE: VOP Release 1.0.7 and T10000 1.31.103 or higher is needed to support diagnostics.

Step 12. Log drive serial number and tape volume that exhibited the problem into the account log.

Step 13. EXIT

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