Tuesday, February 14, 2012

How to Rebuild 3ware raid?


Rebuild Raid:

Unit  UnitType  Status         %Cmpl  Stripe  Size(GB)  Cache  AVerify  IgnECC
------------------------------------------------------------------------------
u0    RAID-5    DEGRADED       -      64K     1862.61   OFF    ON       OFF      

Port   Status           Unit   Size        Blocks        Serial
---------------------------------------------------------------
p0     DEVICE-ERROR     u0     465.76 GB   976773168     WD-WMASY8103731
p1     OK               u0     465.76 GB   976773168     WD-WMASY8098447
p2     OK               u0     465.76 GB   976773168     WD-WMASY8101621
p3     OK               u0     465.76 GB   976773168     WD-WMASY8102807
p4     OK               u0     465.76 GB   976773168     WD-WMASY8103606
p5     NOT-PRESENT      -      -           -             -
p6     NOT-PRESENT      -      -           -             -
p7     NOT-PRESENT      -      -           -             -
Replaced disk in p0.
//cps2> info c2

Unit  UnitType  Status         %Cmpl  Stripe  Size(GB)  Cache  AVerify  IgnECC
------------------------------------------------------------------------------
u0    RAID-5    DEGRADED       -      64K     1862.61   OFF    ON       OFF      

Port   Status           Unit   Size        Blocks        Serial
---------------------------------------------------------------
p0     OK               -      465.76 GB   976773168     WD-WCASY7466065
p1     OK               u0     465.76 GB   976773168     WD-WMASY8098447
p2     OK               u0     465.76 GB   976773168     WD-WMASY8101621
p3     OK               u0     465.76 GB   976773168     WD-WMASY8102807
p4     OK               u0     465.76 GB   976773168     WD-WMASY8103606
p5     NOT-PRESENT      -      -           -             -
p6     NOT-PRESENT      -      -           -             -
p7     NOT-PRESENT      -      -           -             -

//cps2> /c2/u0 start rebuild disk=0
Sending rebuild start request to /c2/u0 on 1 disk(s) [0] ... Failed.

(0x0B:0x0032): Unit is rebuilding
//cps2> info c2

Unit  UnitType  Status         %Cmpl  Stripe  Size(GB)  Cache  AVerify  IgnECC
------------------------------------------------------------------------------
u0    RAID-5    REBUILDING     0      64K     1862.61   OFF    ON       OFF      

Port   Status           Unit   Size        Blocks        Serial
---------------------------------------------------------------
p0     DEGRADED         u0     465.76 GB   976773168     WD-WCASY7466065
p1     OK               u0     465.76 GB   976773168     WD-WMASY8098447
p2     OK               u0     465.76 GB   976773168     WD-WMASY8101621
p3     OK               u0     465.76 GB   976773168     WD-WMASY8102807
p4     OK               u0     465.76 GB   976773168     WD-WMASY8103606
p5     NOT-PRESENT      -      -           -             -
p6     NOT-PRESENT      -      -           -             -
p7     NOT-PRESENT      -      -           -             -
Hopefully, this will finish without problems. Must check back in a few minutes to make sure the %Cmpl is changing.

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