From: Simon Valiquette <v.simon@ieee.org>
To: linux-raid@vger.kernel.org
Subject: Re: RAID 5 Grow
Date: Fri, 15 Jul 2005 16:16:01 -0400 [thread overview]
Message-ID: <42D81981.1050902@ieee.org> (raw)
In-Reply-To: <1121457052.3012.36.camel@x1-6-00-0d-60-fd-e8-4c>
Forrest Taylor a écrit :
> I am doing some RAID scenarios on a single disc (testing purposes) on
> RHEL4. I have some partitions as follows:
>
> /dev/hda5 100M
> /dev/hda6 200M
> /dev/hda7 200M
> /dev/hda8 200M
> /dev/hda9 200M
>
> I create a RAID 5 set with /dev/hda{5,6,7,8}. I fail/remove /dev/hda5
> and add /dev/hda9, at which point I can grow the RAID. Running:
>
> mdadm -G /dev/md0 -z max
>
Have you copied the data from hda5 to hda9 with dd? If i remember,
growing a RAID 5 that way is done by creating the missing stripes at
the end of each disks. If the array is already in degraded mode, I am
not sure if mdadm is able to recover from that.
Simon
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next prev parent reply other threads:[~2005-07-15 20:16 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-07-15 19:50 RAID 5 Grow Forrest Taylor
2005-07-15 20:16 ` Simon Valiquette [this message]
2005-07-15 20:23 ` Forrest Taylor
2005-07-15 20:39 ` Forrest Taylor
2005-07-16 4:54 ` Neil Brown
-- strict thread matches above, loose matches on Subject: below --
2007-06-23 4:16 Richard Scobie
2007-06-25 16:39 ` Bill Davidsen
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