From: Peter Rabbitson <rabbit+list@rabbit.us>
To: "Tor Arne Vestbø" <torarnv@gmail.com>
Cc: linux-raid@vger.kernel.org
Subject: Re: RAID5 in sync does not populate slots sequentially, shows array as (somewhat) faulty
Date: Tue, 04 Mar 2008 11:52:51 +0100 [thread overview]
Message-ID: <47CD2A03.6010408@rabbit.us> (raw)
In-Reply-To: <47CD279F.2070500@gmail.com>
Tor Arne Vestbø wrote:
> The reason I did this was because /dev/sda and /dev/sdb used to be part
> of a RAID1 array, but were now used as system disk and home disk
> respectively. I was afraid that mdadm would pick up on some of the
> lingering RAID superblocks on those disks when reporting, so I shredded
> them both using 'shred -n 1' and reinstalled.
>
This is irrelevant to 1.x superblocks, and largely insignificant for 0.9
superblocks (baring some really bizzare cases). In either case mdadm
--zero-superblock /dev/XX (possibly executed multiple times) would save you a
lot of disk churning :)
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next prev parent reply other threads:[~2008-03-04 10:52 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-03-03 10:42 RAID5 in sync does not populate slots sequentially, shows array as (somewhat) faulty Peter Rabbitson
2008-03-03 11:44 ` Tor Arne Vestbø
2008-03-03 18:34 ` Bill Davidsen
2008-03-04 10:25 ` Peter Rabbitson
2008-03-04 10:42 ` Tor Arne Vestbø
2008-03-04 10:52 ` Peter Rabbitson [this message]
2008-03-04 10:58 ` Tor Arne Vestbø
2008-03-06 14:51 ` Rui Santos
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