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Solution Type Sun Alert Sure Solution 1019253.1 : Expansion of Snapshot Repository on Sun StorageTek 6140 and 6540 Arrays May Freeze and Result in Write Cache Becoming Disabled
PreviouslyPublishedAs 237744 Bug Id <SUNBUG: 6697651> Product Sun StorageTek 6140 Array Sun StorageTek 6540 Array Date of Workaround Release 14-May-2008 Date of Resolved Release 05-May-2009 Expansion of Snapshot Repository on Sun StorageTek 6140 and 6540 Arrays May Freeze and Result in Write Cache Becoming Disabled 1. Impact For Sun StorageTek 6140 and 6540 arrays with firmware 07.10.25.10, an expansion of a snapshot repository may freeze and result in write cache becoming disabled. As a consequence of this Bug, it may be necessary to wipe the array configuration and recreate it. 2. Contributing Factors This issue can occur on the following platforms:
# /opt/SUNWsesscs/cli/bin/sscs list array <array_name> 3. Symptoms When attempting to expand a snapshot volume, the expansion never completes and performance drops due to the cache becoming disabled. Note: A SupportData collection for the array must be obtained in order to confirm this issue. 4. Workaround To avoid this issue, do not expand a snapshot repository if the array has firmware 07.10.25.10. If a snapshot repository expansion is performed and this issue is encountered, it will be necessary to contact Sun Support Services for the proper recovery procedure. 5. Resolution This issue is addressed on the following platforms:
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Modification History 05-May-2009: Updated Resolution section; issue Resolved 29-Sep-2009: Updated Impact section Internal Comments Please send technical questions to the following email: sunalert-tech-questions@sun.com and CC the following persons: Internal Contributor/Submitter Internal Eng Responsible Engineer Internal Services Knowledge Engineer Field and Solution Center Engineers are required to open an escalation with TSC Storage Backline (former PTS Storage) for the proper corrective action and reference this Sun Alert. Internal Contributor/submitter Nicolas.Wipfli@sun.com Internal Eng Responsible Engineer Rich.Floyd@sun.com Internal Services Knowledge Engineer david.mariotto@sun.com Internal Eng Business Unit Group NWS (Network Storage) Internal Sun Alert & FAB Admin Info 13-May-2008, david m: draft created, send for review 14-May-2008, david m: review completed, send to publish 05-May-2009, david m: CAM 6.4 released, update Resolution, republish resolved 29-Sep-2009, david m: update Impact section Attachments This solution has no attachment |
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