Re: [PLUG] How to break a software RAID mirror?

[David Coulson <david@davidcoulson.net>]

What RAID level.

You can break RAID-1, and it'll keep working. It'll complain it's 
missing part of the array, but it will still work.

mdadm has a fail (mdadm -f /dev/md0 /dev/sdb1 or something) option that 
will allow you to fake a failed drive, then you can use mdadm to take it 
out of the array.

Daniel.G.Roberts@sanofi-aventis.com wrote:
> Hi All
>
> My system has two scsi disks that are software RAIDED together and
> mounted.
> I also have a third disk which has a bootable linux OS.
> My question is..
> Can I safely break the software mirror between the first two scsi disks
> without losing data on the first disk so that I can use the second disk
> for something brand new?
> Thanks for any advice?!
> Sincerely
> DAn
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