Date: Fri, 08 Oct 2004 14:52:48 +0200 From: Paul Everlund <tdv94ped@cs.umu.se> To: Greg 'groggy' Lehey <grog@FreeBSD.org> Cc: freebsd-questions@freebsd.org Subject: Re: VINUM: Disk crash with striped raid Message-ID: <41668DA0.4060606@cs.umu.se> In-Reply-To: <20041007223959.GD1350@wantadilla.lemis.com> References: <41656AC8.8080008@cs.umu.se> <20041007223959.GD1350@wantadilla.lemis.com>
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Greg 'groggy' Lehey wrote:
> On Thursday, 7 October 2004 at 18:11:52 +0200, Paul Everlund wrote:
>
> > Hi Greg and list!
Thank you for your reply!
> > I did have two 120 GB's disk drives in vinum as a striped raid.
>
>
> Can you be more specific?
My vinum.conf looks like this, if this is to be more specific:
drive ad5 device /dev/ad5s1e
drive ad6 device /dev/ad6s1e
volume raid0
plex org striped 127k
sd length 0 drive ad5
sd length 0 drive ad6
> > I did contact a data recovery company and they say they need both
> > disks to restore the raid, because of that the raid initializing
> > might be corrupted.
> >
> > My questions is:
> >
> > Do they need both disks?
>
> That depends on your configuration.
That is as above.
> > Isn't it enough if they make a disk image of the failed drive, and I
> > will then be able to restore the raid data initialization in vinum
> > by a vinum create, or something similar?
>
> The command will be 'vinum start'.
Thank you!
> > Will they be able to recreate the raid data without using vinum
> > anyway?
>
> Who knows?
You at least know from this mail that I don't... :-)
> The real issue is the configuration of your volume (not "raid").
Sorry.
> If it only has a single plex, you're in trouble.
Well, then I'm in trouble.
> In that case, you need your recovery company to get an image of
> the failed disk. Then you should put it on a similar disk, create
> a configuration entry and perform some other incantations, and you
> should be up and running again.
Can you please be more specific? Is the configuration entry the one
above, vinum.conf? Perform other incantations?
> If you have two or more plexes, you shouldn't need to do any of this.
As I don't have two or more plexes it seems I have to do all of it. :-)
Thank you for a reply in advance!
Best regards,
Paul
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