[PATCH] very rough cut of adaptec hostraid support for dmraid
Darrick J. Wong
djwong at us.ibm.com
Thu Dec 22 00:03:00 UTC 2005
Heinz,
Actually, I'm leaving on a trip as we speak, so I'll not be able to get
you your metadata samples until after the holidays. Sorry about that. :/
But, have a merry Xmas! I'll talk you after the holidays. :)
--D
Heinz Mauelshagen wrote:
> Darrick,
>
> thanks a lot for your contribution.
> Integrated into my code base -> builds ok.
>
> Can you send me same metadata samples ('dmraid -rD' output files
> tar'ed+bzip2'ed) so that I can elaborate this a bit more here, please ?
> RAID10 example(s) would be greate too.
>
> Hopefully will be able to look more at the code before Xmas.
>
> Regards,
> Heinz
>
> On Wed, Dec 14, 2005 at 04:29:24PM -0800, Darrick J. Wong wrote:
>
>>Hi,
>>
>>Below is a very preliminary patch to enable Adaptec HostRAID support in
>>dmraid. I've been able to configure RAID 0 and 1 arrays on an IBM x226,
>>though I've not had a chance to test it on anything else, such as the
>>SATA HostRAID machine that I have sitting nearby. I'm sending this
>>patch to this list for review and feedback; at this stage, this patch
>>should not be used by anyone with any valuable data at all.
>>
>>So far, the only testing it's seen is an ad-hoc setup wherein I loaded
>>the a320raid module in SLES9, made a filesystem on the RAID, filled it
>>up with assorted junk, rebooted into to 2.6.14, ran dmraid -ay, and then
>>compared what was on the RAID with the originals. That worked, so I
>>wrote some data, rebooted back into SLES9, and compared the filesystem
>>contents under a320raid. That worked too, so off goes the patch.
>>
>>Note that there's quite a bit missing right now--it can't write
>>metadata, spares are totally ignored, and nested RAID setups (RAID10 in
>>particular) are not implemented. Yet. Indeed, I'm only interested in
>>making sure that I'm not barking up the wrong tree with this. :)
>>
>>Questions? Comments?
>>
>>--D
>
>
>
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>
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>
> Heinz Mauelshagen Red Hat GmbH
> Consulting Development Engineer Am Sonnenhang 11
> Cluster and Storage Development 56242 Marienrachdorf
> Germany
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