From: "Stefan G. Weichinger" <lists@xunil.at>
To: "linux-raid@vger.kernel.org" <linux-raid@vger.kernel.org>
Subject: from 2x RAID1 to 1x RAID6 ?
Date: Tue, 07 Jun 2011 20:12:33 +0200 [thread overview]
Message-ID: <4DEE6A11.1030205@xunil.at> (raw)
Greetings, could you please advise me how to proceed?
On a server I have 2 RAID1-arrays, each consisting of 2 TB-drives:
md5 : active raid1 sde1[0] sdf1[1]
976759936 blocks [2/2] [UU]
md6 : active raid1 sdh1[1] sdg1[0]
976759936 blocks [2/2] [UU]
md5 and md6 are right now physical volumes (PVs) in an LVM-volume-group.
Nearly all the space is used right now (1.7 TB out of the ~2 TB).
Now I would like to move things to a more reliable RAID6 consisting of
all the four TB-drives ...
How to do that with minimum risk?
For sure it would be best to move all data aside, stop the arrays and
build a new one ... etc
Failing two drives and remove them from the RAID1s to build a new
degraded RAID6 seems dangerous to me?
Maybe I overlook a clever alternative?
Suggestions welcome, thanks in advance.
Stefan
next reply other threads:[~2011-06-07 18:12 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-06-07 18:12 Stefan G. Weichinger [this message]
2011-06-07 20:07 ` from 2x RAID1 to 1x RAID6 ? Maurice Hilarius
2011-06-07 23:59 ` Thomas Harold
2011-06-08 8:06 ` Stefan G. Weichinger
2011-06-08 9:38 ` David Brown
2011-06-08 10:11 ` John Robinson
2011-06-08 10:33 ` David Brown
2011-06-08 14:20 ` Phil Turmel
2011-06-08 14:42 ` Stefan G. Weichinger
2011-06-09 13:18 ` Nikolay Kichukov
2011-06-09 13:42 ` David Brown
2011-06-08 1:16 ` John Robinson
2011-06-08 8:16 ` Stefan G. Weichinger
2011-06-08 9:43 ` David Brown
2011-06-08 12:31 ` Stefan G. Weichinger
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