From: Jon Hardcastle <jd_hardcastle@yahoo.com>
To: linux-raid@vger.kernel.org
Subject: Raid 5 to 6 is it do-able/safe?
Date: Tue, 29 Dec 2009 03:55:54 -0800 (PST) [thread overview]
Message-ID: <305721.15040.qm@web51302.mail.re2.yahoo.com> (raw)
Hi,
I run a 6 drive array with a multitude of drive sizes with 1 drive spare and 1 bay left.
I am running out of space! I want to take my drives past 1TB per drive (currently 500GB~1TB) but want RAID 6 for when the array goes to > 1TB per drive (coming soon)
I have deliberately kept 1 drive as a spare to give me the option of going to raid 6. Is this something mdadm can do? I have
mdadm - v3.1.1 - 19th November 2009
I run gentoo with kernel 2.6.22-gentoo-r8
Don't know if it is relevant but have lvm on top
LVM version: 2.02.56(1) (2009-11-24)
Library version: 1.02.40 (2009-11-24)
Driver version: 4.11.0
I have seen talk on Neil's site, just not sure if the support is definately there.
If it is would i run something like this
mdadm --grow /dev/md4 --level=6 --raid-disk=7
to convert my 6 drive +1 spare raid 5 to a 7 drive raid 6?
-----------------------
N: Jon Hardcastle
E: Jon@eHardcastle.com
'Do not worry about tomorrow, for tomorrow will bring worries of its own.'
***********
Please note, I am phasing out jd_hardcastle AT yahoo.com and replacing it with jon AT eHardcastle.com
***********
-----------------------
next reply other threads:[~2009-12-29 11:55 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-12-29 11:55 Jon Hardcastle [this message]
2009-12-29 12:08 ` Raid 5 to 6 is it do-able/safe? Mikael Abrahamsson
2009-12-29 13:31 ` John Robinson
2009-12-29 13:38 ` Kristleifur Daðason
2009-12-31 11:19 ` Jon Hardcastle
2009-12-31 14:55 ` Mikael Abrahamsson
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