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S2600 storage device(V100R005C02) has a faulty LUN

Publication Date:  2013-04-01 Views:  698 Downloads:  0
Issue Description
in one raid group, all the disks are faulty, and the LUN which is create on this raid is also faulty.

Alarm Information
the disk and LUN are faulty, the raid group is degraded
Handling Process
please consult with the R&D first before you run the command revive, you must pay attention to the sequency of these commands, you should revive the faulty disk which broken down at the end firstly, then revive the disk which broken down at the beginning.
please login to the CLI, then enter the debug mode, and run the command 'mml' to enter the mml mode, then run the commands as bellow one by one:
revive disk 3 3
revive disk 3 2
revive disk 3 1
revive disk 3 0
revive disk 1 11
revive disk 1 10
revive disk 1 9
revive raidlun 6

then on the CLI mode, run the command showrg, you can see the raid group 6 status is degraded,
with the showlun command, the status of LUNs is normal.
With the showdisk –l command, all the disk status is normal, except (1,8) which is reconstruction status. If the status of disk (1,8) is still faulty, you can move the disk and wait for about 5 minutes, then insert it
Root Cause
there is one faulty disk, it isn't replaced as soon as possible, then another disk is faulty in the raid, sevaral faulty disk will cause the degraded raid group.