[Linux-PowerEdge] Seeing alert after rebuilding to hotspare: Insufficient space on the global hot spare

cupertino cupertino at gmx.net
Wed Apr 9 12:27:58 CDT 2014


I've seen this, but only if the global HS was in fact not able cover for
all hard drives in any of the configured RAIDs on the controller. 
If the RAID10 is your only configured RAID then it's most likely a bug. 

On Wed, 2014-04-09 at 13:01 -0400, Brian Mathis wrote:
> PowerEdge R720
> H710P 1GB
> 
> 
> 
> Configuration: 4x Disk RAID10 + 1 Hot spare
> 
> 
> 
> Part of our testing regimen involves testing RAID failure.  We do this
> by creating the RAID, then pulling out a disk and ensuring the rebuild
> happens correctly to the hot spare.  We are seeing an issue after the
> original disk is replaced and the array is rebuilt back onto it.  When
> the rebuild completes and the spare is re-added as a global spare, the
> following alert is generated:
> 
>     Event Message: Insufficient space on the global hot spare Disk 1
> in 
>     Backplane 1 of Integrated RAID Controller 1.
>     Date/Time: Wed Apr 09 2014 16:04:40
>     Severity: Warning
> 
>     Detailed Description: The global hot spare is not large enough to
> protect
>     all virtual disks that reside on the controller. 
>     Recommended Action: Assign a larger disk as the global hot spare. 
>     Message ID: PDR50
> 
> 
> Immediately after this message is generated, the drive is successfully
> added as a hotspare.  Further testing shows that the hot spare is
> successfully used if the array is forced to fail again.  All of the
> drives are exactly the same model/size.
> 
> 
> Has anyone else seen this issue?  Should I be concerned or is this a
> bug?
> 
> 
> 
> All firmware is up to date.
> 
> 
> 
> ❧ Brian Mathis
> 
> 
> 
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