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Solution Type Sun Alert Sure Solution 1000915.1 : Special Firmware Installation Procedures Are Required to Prevent Loss of Volume Access on StorEdge T3/T3+ Arrays
PreviouslyPublishedAs 201228 Product Sun StorageTek T3 Array Sun StorageTek T3+ Array Bug Id <SUNBUG: 4697868> Date of Resolved Release 01-APR-2003 Impact Installation of firmware versions 1.18.01 for T3 arrays or 2.01.03 for T3+ arrays may result in marginal disk drives in the arrays being marked as "disabled". This could lead to loss of disk volume access if special firmware pre-installation procedures are not followed. Contributing Factors This issue can occur in the following releases:
Note: This issue occurs due to the inclusion of improved disk error handling routines in firmware versions 1.18.01 (T3) and 2.01.03 (T3+) and later. Because of this change in error handling, marginal disk drives which have already logged certain types of errors may be disabled (failed) by the new firmware. Loss of volume access can occur when two or more disks are disabled within a T3/T3+ array at the same time. Any of the following types of disk errors may cause the new firmware to fail a drive: Jun 05 06:16:14 ISR1[2]: W: Sense Key = 0x4, Asc = 0x15, Ascq = 0x1 Jun 05 06:16:14 ISR1[2]: W: Sense Data Description = Mechanical Positioning Error Jul 31 16:19:22 ISR1[1]: N: u1d3 SCSI Disk Error Occurred (path = 0x1) Jul 31 16:19:22 ISR1[1]: N: Sense Key = 0x1, Asc = 0x5d, Ascq = 0x0 Jul 31 16:19:22 ISR1[1]: N: Sense Data Description = Failure Prediction Threshold Exceeded Symptoms When this issue occurs, an affected T3/T3+ disk volume will become unavailable to software applications running on the attached host. The Solaris OS may display "Offline" error messages for the volume or "SCSI transport error, giving up". The T3/T3+ "syslog" file would show two or more disk drives within the volume as "disabled". Workaround Please see the Resolution section below for how to avoid the described issue. Resolution This issue is addressed by closely following the patch installation procedures provided in the README files for patches 109115-12 (or later) and 112276-06 (or later). The required steps are: 1) Inspect the "syslog" file from the T3/T3+ array for any of the errors shown above by running the following command: test_host% egrep -i'0x5D|Threshold|0x15|0x4|Mechanical|Positioning|Exceeded|Disk Error' syslog Jun 05 06:16:14 ISR1[2]: W: u2d5 SCSI Disk Error Occurred (path = 0x0) Jun 05 06:16:14 ISR1[2]: W: Sense Key = 0x4, Asc = 0x15, Ascq = 0x1 Jun 05 06:16:14 ISR1[2]: W: Sense Data Description = Mechanical Positioning Error Jul 31 16:19:22 ISR1[1]: N: u1d3 SCSI Disk Error Occurred (path = 0x1) Jul 31 16:19:22 ISR1[1]: N: Sense Key = 0x1, Asc = 0x5d, Ascq = 0x0 Jul 31 16:19:22 ISR1[1]: N: Sense Data Description = Failure Prediction Threshold Exceeded 2) Back up the data from volumes with disk drives reporting any one of the above errors. 3) Replace any disk drives reporting the above errors. 4) Verify the volume is in optimal working order. 5) Install the new firmware.
Modification History Previously Published As 101219 Internal Comments
Internal Contributor/submitter stacy.cordero@sun.com Internal Eng Business Unit Group NWS (Network Storage) Internal Eng Responsible Engineer guruprasad.sakaleshpura@sun.com Internal Services Knowledge Engineer pete.stauffer@sun.com Internal Sun Alert Kasp Legacy ID 101219, 52562 (Sun Alert) Internal Sun Alert & FAB Admin Info Critical Category: Availability ==> Pervasive Significant Change Date: 2003-04-01 Avoidance: Workaround Responsible Manager: tejinder.singh@sun.com Original Admin Info: This document has been imported from KMS Creator and may need adjustment before re-publishing. This imported document has been reviewed/adjusted by: Review Name: Review Date: Original KMS Creator attributes below: --- PLEASE DO NOT MAKE ANY CHANGES BELOW THIS LINE! --- Sun Alert ID: 52562 Synopsis: Special Firmware Installation Procedures Are Required to Prevent Loss of Volume Access on StorEdge T3/T3+ Arrays Category: Availability Product: Sun StorEdge T3/T3+ Array BugIDs: 4697868 Avoidance: Workaround State: Resolved Date Released: 01-Apr-2003 Date Closed: 01-Apr-2003 Date Modified: Escalation IDs: Pending Patches: Resolution Patches: see, above FIN: I0876-2, I0936-1 FCO: Date Submitted: 31-Mar-2003 Submitter: stacy.cordero@sun.com Responsible Engineer: guruprasad.sakaleshpura@sun.com Responsible Manager: tejinder.singh@sun.com CTE group: CPRE NWS US Responsible Writer: pete.stauffer@sun.com Distribution: Public SunSolve Workflow History: WF State: Issued, 01-Apr-2003, Pete Stauffer WF Note: Received Signoff and sent to SunSolve. WF State: Draft, 01-Apr-2003, Pete Stauffer WF Note: Received Signoff and sent to SunSolve. WF State: Draft, 31-Mar-2003, Pete Stauffer WF Note: Sent to sunalert_review@sun.com. WF State: Draft, 28-Mar-2003, Pete Stauffer WF Note: Article created. Exported from KMS Creator Sat May 21 08:57:16 2005 GMT, olaf.reineke@sun.com Internal SA-FAB Eng Submission Special Firmware Installation Procedures Are Required to Prevent Loss of Volume Access on StorEdge T3/T3+ Arrays Product_uuid 2a6d7d50-0a18-11d6-8e0b-f0bd33b24928|Sun StorageTek T3 Array 2a714b10-0a18-11d6-86e2-d56b387d4fbf|Sun StorageTek T3+ Array Attachments This solution has no attachment |
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