dmraid support for hotswapping and intel ich7

[Heinz Mauelshagen]

On Mon, May 21, 2007 at 01:31:18PM +0200, Nico Kist wrote:
> Hello Everyone,
> 
> First of all, thanks for all the great work done on dmraid.

You're welcome.

> It looks
> like a great solution for my problem, I'm just not quite about one
> feature. My plan is to use dmraid with my ich7 raid chip for backup
> purposes (RAID-1). I want to take a mirrored disk out every week, and
> store it up offsite, and put a new (possibly blank) disk in.
> 
> I'm hoping I could use dmraid instead of mdraid because it actually
> mirrors the whole disk, not just selected partitions.
> 
> I do have a number of questions however, primarily, does dmraid
> support hotswap?

Not yet online (i.e. pull drive and a spare one gets used).
You got to use the BIOS to replace your drive weekly
and dmraid sets the mirror up for resync.

> This is rather important to me. Another thing I'm
> wondering about is if it's possible to just insert a blank disk into a
> degraded array and have it automatically start mirroring the disk?

See above.
Feature is planned.

> 
> Cheers and thanks in advance for any replies,
> 
> Nico Kist
> 
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> Ataraid-list at redhat.com
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-- 

Regards,
Heinz    -- The LVM Guy --

*** Software bugs are stupid.
    Nevertheless it needs not so stupid people to solve them ***

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Heinz Mauelshagen                                 Red Hat GmbH
Consulting Development Engineer                   Am Sonnenhang 11
Storage Development                               56242 Marienrachdorf
                                                  Germany
Mauelshagen at RedHat.com                            PHONE +49  171 7803392
                                                  FAX   +49 2626 924446
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