Re: How to force a spare drive to take over in a RAID5?

[Mike Tran <mhtran@us.ibm.com>]

You're on the right track :) mdadm --fail /dev/sdr should do.

--
Mike T.

On Mon, 2005-08-08 at 16:43, Mark Cuss wrote:
> Kernel 2.4.27
> 
> I've been using the old raidtools stuff and am new to mdadm - sorry if this 
> is a obvisouly simply question...
> 
> After perusing the man page, is looks to me that I should use mdadm to mark 
> the drive I want to remove as failed to force a rebuild on the spare drive. 
> I want to double check that this is correct first though, as this md device 
> contains 300 gig of production data.
> 
> Thanks for the help!
> 
> Mark
> 
> ----- Original Message ----- 
> From: "David Greaves" <david@dgreaves.com>
> To: "Mark Cuss" <mcuss@cdlsystems.com>
> Cc: <linux-raid@vger.kernel.org>
> Sent: Sunday, August 07, 2005 5:29 AM
> Subject: Re: How to force a spare drive to take over in a RAID5?
> 
> 
> > Mark Cuss wrote:
> >
> >> Hi!
> >>
> >> I have a 4 drive SW RAID5 running on my machine.  One of the drives is
> >> upset for some reason - I'm not sure if the drive itself is bad, but
> >> that's not too important right now.  The important thing is to get the
> >> RAID5 to stop using this drive and start using a spare drive that I
> >> just added.
> >
> >
> >> I did a raidhotadd to add in a new drive, sds.  Now, I would like the
> >> array to stop using sdr and reconstruct all of the parity tables on
> >> sds so I can pull sdr and get it replaced or whatever...
> >>
> >> Any ideas?
> >
> > Install and read the manpage for mdadm
> >
> > What kernel version?
> >
> > David
> > 
> 
> 
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