SAS 5/iR raid migration

Patrick_Boyd at Dell.com Patrick_Boyd at Dell.com
Thu May 20 08:39:27 CDT 2010


Correct. Reconfiguration is supported by the PERC series of controllers only (with the exception of the PERC H200).

-----Original Message-----
From: Ben Tisdall [mailto:ben.tisdall at photobox.com] 
Sent: Wednesday, May 19, 2010 7:26 PM
To: Boyd, Patrick
Cc: linux-poweredge.lists at tisc.de; linux-poweredge-Lists
Subject: Re: SAS 5/iR raid migration

Thanks very much Tino & Patrick.

I am guessing the same goes for the SAS6/iR too.

On Wed, May 12, 2010 at 3:00 PM,  <Patrick_Boyd at dell.com> wrote:
> SAS 5/iR does not allow for RAID Level Migration or Capacity Expansion (Reconfiguration in OMSA parlance).
>
> -----Original Message-----
> From: linux-poweredge-bounces-Lists On Behalf Of Tino Schwarze
> Sent: Wednesday, May 12, 2010 4:12 AM
> To: linux-poweredge-Lists
> Subject: Re: SAS 5/iR raid migration
>
> Hi Ben,
>
> On Wed, May 12, 2010 at 10:01:19AM +0100, Ben Tisdall wrote:
>
>> I wonder if someone could confirm to me that non-destructive  raid
>> level migration (1 => 0) is NOT possible with the SAS5/iR controller?
>
> Such conversion would be very risky, to say the least. (In RAID1, you
> have a copy of each data block on both disks, in RAID0, you distribute
> data blocks evenly: block0 -> disk0, block1 -> disk1, block2 -> disk0,
> block3 -> disk1 etc.) Apart from that, the SAS 5/iR is a rather stupid
> controller with no fancy logic etc, so I guess it's simply not supported.
>
>> >From the lack of that option in VD menu I assume that is the case,
>> unless it's matter of a driver version:
>>
>> Firmware Version      00.10.51.00.06.12.05.00
>> Driver Version        3.04.03
>> Minimum Required Driver Version       3.12.29.00
>>
>> This is OM 6.2 on Fedora 6 (cannot be upgraded to suit unfortunately).
>
> OMSA or OS version shouldn't matter at all.
>
> Tino.
>
> --
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>
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