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3ware 9500S DEGRADED raid1 with ECC failure. Help

Posted on 2009-05-04
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Last Modified: 2012-06-27
I had a drive fail on my server. I replaced it. During the rebuild it failed with a ECC error. So I have 1 drive failed and 1 drive with ECC errors. What do I do?

[root@]# ./tw_cli /c0 show all
/c0 Driver Version = 2.26.02.007
/c0 Model = 9500S-4LP
/c0 Available Memory = 112MB
/c0 Firmware Version = FE9X 2.08.00.006
/c0 Bios Version = BE9X 2.03.01.052
/c0 Boot Loader Version = BL9X 2.02.00.001
/c0 Serial Number = XXXXXXXXXXXXX
/c0 PCB Version = Rev 019
/c0 PCHIP Version = 1.50
/c0 ACHIP Version = 3.20
/c0 Number of Ports = 4
/c0 Number of Drives = 2
/c0 Number of Units = 1
/c0 Total Optimal Units = 0
/c0 Not Optimal Units = 1
/c0 JBOD Export Policy = off
/c0 Disk Spinup Policy = 1
/c0 Spinup Stagger Time Policy (sec) = 2
/c0 Cache on Degrade Policy = Follow Unit Policy

Unit  UnitType  Status         %RCmpl  %V/I/M  Stripe  Size(GB)  Cache  AVrfy
------------------------------------------------------------------------------
u0    RAID-1    DEGRADED       -       -       -       465.651   ON     OFF    

Port   Status           Unit   Size        Blocks        Serial
---------------------------------------------------------------
p0     DEGRADED         u0     465.76 GB   976773168     WD-WMASY5041738    
p1     ECC-ERROR        u0     465.76 GB   976773168     WD-WCAPW2571393    
p2     NOT-PRESENT      -      -           -             -
p3     NOT-PRESENT      -      -           -      
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Question by:martin_2110
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Expert Comment

by:0ren
ID: 24299694
p0 is degraded and not failed.
therefore you should replace p1 and rebuild the raid

good luck
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Author Comment

by:martin_2110
ID: 24300097
p0 failed, I already replaced it and started the rebuild. p1 is the "working drive."
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martin_2110 earned 0 total points
ID: 24300102
This is how i fixed it. p0 was a new drive i could not finish the rebuild with it because of ECC errors on the "good drive"

# clears the ecc errors.
# ./tw_cli /c0 rescan

Issue the command to start rebuilding the array onto the new disk in port0: NOTE THE ignore ECC command.
# ./tw_cli /c0/u0 start rebuild disk=p0 ignoreECC

If you need to, pause and resume the rebuild:
# ./tw_cli /c0/u0 pause rebuild
# ./tw_cli /c0/u0 resume rebuild

Check the rebuild progress and RAID health:
# ./tw_cli /c0 show
0

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