In the event of a disk failure, disk rebuilding would commence on the spare drive (if configured) and the rebuilding may stop after 99% and not complete. The rebuild will remain incomplete and the logical device state would remain as degraded. Should another drive failure occur, this condition could result in loss of data integrity.

This issue can occur on the following platforms:

• Sun StorEdge 3310 SCSI array without 4.11k firmware (as delivered in patch 113722-10)
• Sun StorEdge 3510 FC array without 4.11i firmware (as delivered in patch 113723-10)
• Sun StorEdge 3511 FC array without 4.11i firmware (as delivered in patch 113724-04)

A disk failure is followed by disk rebuilding which stops at 99% and does not proceed. There are no indications from the system that this condition has occurred.

Notes:

1. The relief/workaround below is only valid for rebuilds that have reached 99 percent. Any other percentage less than 99 percent indicates a different issue and this relief/ workaround process is not valid.
2. Before attempting to utilize the relief/workaround below, insure that the logical disks status is degraded. The relief/workaround below does not work with the logical disk at any other status level.

To work around the described issue: if the disk rebuild process is hung, reset the array (through the "sccli" utility) and restart the rebuild. The rebuild will then complete without incident. Resetting the controller through the telnet(1) or serial port interfaces, or performing a hard reset, does not flush the cache. Only the reset done through the "sccli" utility will properly flush the cache.

Note: Any disks that failed prior to resetting the array must be removed in order to prevent the failed disk from reassuming the role of a valid disk in the Logical Drive.

This issue is addressed on the following platforms:

• Sun StorEdge 3310 SCSI array with 4.11k firmware (as delivered in patch 113722-10 or later)
• Sun StorEdge 3510 FC array with 4.11i firmware (as delivered in patch 113723-10 or later)
• Sun StorEdge 3511 FC array with 4.11i firmware (as delivered in patch 113724-04 or later)

Change History

12-May-2005 

• Added resolution patch for 3511 to Contributing Factors and Resolution sections

• Added note to "Relief/Workaround" section

14-Jun-2005:

• Clarifications made to "Relief/Workaround" section, clarifications made to product name in Contributing Factors

• Updated Contributing Factors and Resolution sections
• State: Resolved

• Updated Contributing Factors and Resolution sections for clarification

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