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| Sun System Handbook - ISO 3.4 June 2011 Internal/Partner Edition | ||
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Solution Type Problem Resolution Sure Solution 1006534.1 : Sun StorEdge[TM] 3510 FC Array: Repeated disk failures
PreviouslyPublishedAs 209134 Symptoms Sun StorEdge[TM] 3510 FC Array (SE3510FC) suffers from repeated disk failures. Resolution If SE3510FC suffers from repeated disk failures, with the same disks failing again and again, or if only the disk LESB counters for certain disks or slots continue to increase without any apparent cause, then the problem source may be the FC Expansion I/O Module (370-5538 or equivalent). The FC Expansion I/O Module and the RAID controller I/O module not only provide external array connections ( and in the case of the RAID module, house the controller CPU board ), but they also contain the circuitry that forms the "back-end" drive loops of the array. These are the electronic components that handle the fibre channel protocol and communication between controllers and drives, and that put ports offline and online as appropriate. Since faults in those components may cause fibre channel errors to be recorded on the drive loops, the RAID I/O Module or "JBOD" FC Expansion I/O module should be considered as possible FRUs to be replaced if drive loop error counters increase rapidly, or if the RAID controller inappropriately fails disk drives. The midplane or chassis of the array contains no active components that make up the drive channels, apart from connectors and wiring. Replacing the array chassis or midplane when fibre channel error counters increase for certain drive slots would therefore be pointless. This should only be done when a connector or printed circuit track itself is confirmed to be faulty. The FC error counters can be checked using sccli commands: diag error channel 2 target all diag error channel 3 target all Please note that with sccli version 2.1.x , and in the case of a single controller array or dual controllers array with one in failed state then the sccli command is unable to show the values for channel 3. Relief/Workaround Product Sun StorageTek 3510 FC Array Internal Comments Read: Bug 6361326 for sccli 2.1.x issue. Minnow, StorEdge, SE3510FC, 3350, multiple, disk, failure, single, controller, error Previously Published As 83485 Change History Date: 2007-11-27 User Name: 97961 Action: Approved Comment: Publishing. No further edits required. Version: 8 Date: 2007-11-27 User Name: 97961 Action: Accept Comment: Version: 0 Date: 2007-11-27 User Name: 84756 Action: Approved Comment: After correcting Natalia's update , and take into account the remark of the final review , I have moved the CR number to internal section. Document ready for publishing. Attachments This solution has no attachment |
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