Changing a drive in predictable failure state

Patrick_Boyd at Dell.com Patrick_Boyd at Dell.com
Tue Jun 17 10:13:54 CDT 2008


There isn't any difference. However, ideally you'd never like a drive to
fail as there are corner cases that can still result in data loss
(sectors that have failed and not yet been remapped since no activity
has occurred for example). The steps that Patrick Fischer lined out are
better than just yanking the drive. The steps I just sent cover almost
all problem cases. 

Assuming no other problems your suggestion would work fine. It's just a
matter of how paranoid you would like to be with your data.

-----Original Message-----
From: linux-poweredge-bounces at dell.com
[mailto:linux-poweredge-bounces at dell.com] On Behalf Of Kaj Niemi
Sent: Tuesday, June 17, 2008 9:41 AM
To: Fischer, Patrick
Cc: linux-poweredge-Lists; bertrand.lupart at linkeo.com
Subject: Re: Changing a drive in predictable failure state


How is pulling the drive out different from drive failure?

On Jun 17, 2008, at 17:38, <Patrick_Fischer at Dell.com>
<Patrick_Fischer at Dell.com  > wrote:

> On the fly can result in lost the whole array in the worst case. => 
> data corruption
>
> omconfig storage adisk action=remove controller=id 
> adisk=<ARRAYFESTPLATTEN-ID> omconfig storage adisk action=offline 
> controller=id adisk=<ARRAYFESTPLATTEN-ID>
>
> One of these steps should be done to remove the disk from the array. I

> use generally the offline task.
>
>
> -----Original Message-----
> From: linux-poweredge-bounces at dell.com 
> [mailto:linux-poweredge-bounces at dell.com] On Behalf Of Kaj Niemi
> Sent: Dienstag, 17. Juni 2008 16:19
> To: Bertrand LUPART
> Cc: linux-poweredge-Lists
> Subject: Re: Changing a drive in predictable failure state
>
> Hi,
>
> On Jun 17, 2008, at 17:00, Bertrand LUPART wrote:
>
>> I've a PE 2950 whose physical drive #3 is in "predictable failure"
>> state
>> (blinking green/orange). This disk is part of a RAID-1 virtual disk.
>>
>> I was surprised when the tech told me i just can't hotswap the drive 
>> by a new one. Since the drive is still considered as healthy, he said

>> i must remove the "faulty disk" from the RAID array beforehand.
>> Since i'm running an unsupported Dell system, he just told me to 
>> shutdown the machine and handle that with the controller BIOS, which 
>> i'd like not to do.
>
>
> I have pulled out a drive on the fly, inserted another and had the 
> array rebuild the VD just fine. I believe Dell discourage that but it 
> should work. ;-)
>
>
>
> HTH
>
> Kaj
> --
> Kaj J. Niemi
> <kajtzu at basen.net>
> +358 45 63 12000
>
>
>




HTH

Kaj
-- 
Kaj J. Niemi
<kajtzu at basen.net>
+358 45 63 12000






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