SL8500 - Robot Operation Failed Code: 504 - Robot Says Cartridge Stuck in Location Data

Asset ID:	1-72-1392136.1
Update Date:	2012-01-09
Keywords:

Solution Type Problem Resolution Sure

Solution 1392136.1 : SL8500 - Robot Operation Failed Code: 504 - Robot Says Cartridge Stuck in Location Data

Applies to:

Sun StorageTek SL8500 Modular Library System - Version: Not Applicable to Not Applicable - Release: N/A to N/A
Information in this document applies to any platform.

Symptoms

The robot is not able to fetch a tape from a particular cell. Repeated fetch retries fail as well and the tape appears to be stuck in the cell.

Result code 5010
RC5010
Robot operation failed.

Errors messages in the SL Console Error Warn Info Event log:
-----------------------------------------
2011-10-31T04:04:04.023 1,3,0,2,0 root hli0 move 86969901error 3955 Error from device Code: 504 - Robot says cartridge stuck in location Data=<response sequence="2773250" final="true"><command>fetchCartridge</command><result identifier="1"><resultStatus><resultSeverity>error</resultSeverity><resultCode>5010</resultCode><resultText><!|CDATA|cmo_user_fetch: Retry Performed 5610; servo mech reach event 5010 at 4648 tachs, 5719 mils||></resultText><operationalState>504</operationalState></resultStatus><address>1,3,7,1,10</address></result></response>

2011-10-31T04:04:04.102 1,3,0,2,0 root hli0 move 86969901error 1319 Robot operation failed Code: 504 - Robot says cartridge stuck in location Data:=<response sequence="2773250" final="true"><command>fetchCartridge</command><result identifier="1"><resultStatus><resultSeverity>error</resultSeverity><resultCode>5010</resultCode><resultText><!|CDATA|cmo_user_fetch: Retry Performed 5610; servo mech reach event 5010 at 4648 tachs, 5719 mils||></resultText><operationalState>504</operationalState></resultStatus><address>1,3,7,1,10</address></result></response> volumeLabel=P51344T1 hliLsm=2

2011-10-31T04:04:04.117 1,0,0,0,0 root hli0 move 86969901error 1310 No operational hardware path to destination - initial sourceAddress=1,3,7,1,10 destinationAddress=1,2,1,1,4 volumeLabel=P51344T1

Changes

No known change in the system

Cause

There is a problem with the cell array that caused the tape to get stuck in the cell.
There could also be a problem with the cartridge's case or leader block.

Solution

1. When a robot fails to fetch a tape stuck in a cell, and the robot becomes inoperative either due to a
      "servo mech reach" error or a "reach not safe" error, the LSM will have to be offlined prior to initiating
      recovery procedures.

2. Determine the robot and source cell addresses from the servo mech reach event error message. The
     identifier of the stuck tape will also be in one of the error messages. Identify the rail and LSM affected
     by the reach errors.

3. Inform the customer that the rail will have to be reset and the associated LSM will have to be
     varied offline to the host. ( The customer may have to schedule a short down time. )

4. After the LSM has been varied offline, the field engineer should reset the rail through the HBS switch
     at the back of the library.

5. If resetting the rail fails to recover and put away the tape, review the event log error messages and
     check for rail and/or robot reset failure errors.

6. Should the tape remain stuck, the field engineer will have to go inside the library, manually take the tape
     out from the cell and examine both the tape and the cell for possible problems. Run diagnostic tests
     on the robot, as well.

7. Verify if the rail and robot comes back up. Vary the LSM online to the host.


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