Resolution info for predicted disk failure required.

[Robert von Bismarck]

Hi,

Here's what I did when we had a dead drive in a 1950 :

1) order a new identical (or bigger) disk from Dell
2) when it's arrived, pull the dead/dying drive from the server
3) plug in the new drive 
4) watch the array status to see if the rebuild starts
5) give the failed drive back to the Dell guy

Total time : 5 minutes, the longest part is convincing the dell support person that you really need a new drive :) Plus 3 hours for the drive to arrive at my doorstep.

You don't need to power down, go into the bios and so on, the RAID controller will do that for you and rebuild the array automagically. 
Rebuilding takes between 30 minutes and 1 hour, depending on the array usage.

Cheers,

Robert

 

> -----Message d'origine-----
> De : linux-poweredge-bounces at dell.com 
> [mailto:linux-poweredge-bounces at dell.com] De la part de Andrew Hall
> Envoyé : mardi, 17. juillet 2007 14:32
> À : linux-poweredge at dell.com
> Objet : Resolution info for predicted disk failure required.
> 
> Hi there.
> 
> We have a 2950 with 6x73GB SAS disks in a RAID10 array.
> 
> Recently in syslog I see this...
> 
> Jul 17 13:06:14 Server Administrator: Storage Service EventID: 2094
> Predictive Failure reported:  Array Disk 1:0:4 Controller 0, Connector
> 1
> Jul 17 13:06:14 Server Administrator: Storage Service EventID: 2095
> SCSI sense data Sense key:  0 Sense code: 5D Sense qualifier:  0:
> Array Disk 1:0:4 Controller 0, Connector 1
> 
> Through the OMSA web interface this is confirmed, and through the RAID
> BIOS it is classed as a SMART alert.
> 
> I guess I should replace the disk ASAP!
> 
> My concern is that this is the first RAID issue I have ever dealt
> with, and I'm not too sure of the procedure.
> 
> Do I just....
> 
> 1. Power down the server.
> 2. Remove the problem disk.
> 3. Install a new disk of the same type and size.
> 4. Reboot the server.
> 
> Or, should there be a step between 3 and 4 such as...
> 
> 3a. Go into the RAID BIOS.
> 3b. Issue a command to begin a rebuild of the array.
> 
> Is there anything else I should be aware of? This is an important
> machine, that I really don't wish to rebuild again from scratch :-)
> 
> Thanks very much,
> 
> Andrew Hall.
> 
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