Saturday, April 14, 2012

How to Add Raid Spare in 3ware?


Add Raid Spare:

[~]# ./tw_cli
//cp> info c8

Unit  UnitType  Status         %RCmpl  %V/I/M  Stripe  Size(GB)  Cache  AVrfy
------------------------------------------------------------------------------
u0    RAID-5    OK             -       -       64K     1862.61   ON     OFF    

Port   Status           Unit   Size        Blocks        Serial
---------------------------------------------------------------
p0     OK               u0     465.76 GB   976773168     WD-WCANU2126397
p1     OK               u0     465.76 GB   976773168     WD-WCANU2051520
p2     OK               u0     465.76 GB   976773168     WD-WCAS84972002
p3     OK               u0     465.76 GB   976773168     WD-WCAS84739115
p4     OK               u0     465.76 GB   976773168     WD-WCANU2114264
p5     OK               u?     465.76 GB   976773168     WD-WCANU2051215
p6     NOT-PRESENT      -      -           -             -
p7     NOT-PRESENT      -      -           -             -

//cp> rescan
Rescanning controller /c8 for units and drives ...Done.
Found the following unit(s): [/c8/u1].
Found the following drive(s): [none].

//cp> info c8

Unit  UnitType  Status         %RCmpl  %V/I/M  Stripe  Size(GB)  Cache  AVrfy
------------------------------------------------------------------------------
u0    RAID-5    OK             -       -       64K     1862.61   ON     OFF
u1    RAID-5    INOPERABLE     -       -       64K     1862.61   OFF    OFF    

Port   Status           Unit   Size        Blocks        Serial
---------------------------------------------------------------
p0     OK               u0     465.76 GB   976773168     WD-WCANU2126397
p1     OK               u0     465.76 GB   976773168     WD-WCANU2051520
p2     OK               u0     465.76 GB   976773168     WD-WCAS84972002
p3     OK               u0     465.76 GB   976773168     WD-WCAS84739115
p4     OK               u0     465.76 GB   976773168     WD-WCANU2114264
p5     OK               u1     465.76 GB   976773168     WD-WCANU2051215
p6     NOT-PRESENT      -      -           -             -
p7     NOT-PRESENT      -      -           -             -

//cp> /c8/u1 del
Deleting /c8/u1 will cause the data on the unit to be permanently lost.
Do you want to continue ? Y|N [N]: Y
Deleting unit c8/u1 ...Done.

//cp> info c8

Unit  UnitType  Status         %RCmpl  %V/I/M  Stripe  Size(GB)  Cache  AVrfy
------------------------------------------------------------------------------
u0    RAID-5    OK             -       -       64K     1862.61   ON     OFF    

Port   Status           Unit   Size        Blocks        Serial
---------------------------------------------------------------
p0     OK               u0     465.76 GB   976773168     WD-WCANU2126397
p1     OK               u0     465.76 GB   976773168     WD-WCANU2051520
p2     OK               u0     465.76 GB   976773168     WD-WCAS84972002
p3     OK               u0     465.76 GB   976773168     WD-WCAS84739115
p4     OK               u0     465.76 GB   976773168     WD-WCANU2114264
p5     OK               -      465.76 GB   976773168     WD-WCANU2051215
p6     NOT-PRESENT      -      -           -             -
p7     NOT-PRESENT      -      -           -             -

//cp> /c8 add type=spare disk=5
Creating new unit on controller /c8 ... Done. The new unit is /c8/u1.
WARNING: This Spare unit may replace failed drive of same interface type only.

//cp> info c8

Unit  UnitType  Status         %RCmpl  %V/I/M  Stripe  Size(GB)  Cache  AVrfy
------------------------------------------------------------------------------
u0    RAID-5    OK             -       -       64K     1862.61   ON     OFF
u1    SPARE     OK             -       -       -       465.753   -      OFF    

Port   Status           Unit   Size        Blocks        Serial
---------------------------------------------------------------
p0     OK               u0     465.76 GB   976773168     WD-WCANU2126397
p1     OK               u0     465.76 GB   976773168     WD-WCANU2051520
p2     OK               u0     465.76 GB   976773168     WD-WCAS84972002
p3     OK               u0     465.76 GB   976773168     WD-WCAS84739115
p4     OK               u0     465.76 GB   976773168     WD-WCANU2114264
p5     OK               u1     465.76 GB   976773168     WD-WCANU2051215
p6     NOT-PRESENT      -      -           -             -
p7     NOT-PRESENT      -      -           -             -

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