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From: John Robinson <john.robinson@anonymous.org.uk>
To: Linux RAID <linux-raid@vger.kernel.org>
Subject: Cancel reshape?
Date: Wed, 12 Jan 2011 04:19:30 +0000	[thread overview]
Message-ID: <4D2D2BD2.7000601@anonymous.org.uk> (raw)

I've just started reshaping a RAID-5 to a RAID-6. I had meant to 
increase the number of drives too, so avoiding using the backup file all 
the way through. Unfortunately I forgot to specify that, so it's going 
rather slowly. I said:

mdadm /dev/md1 --grow --level=6 --backup-file=/some/where/else

where md1 had 3 active and 2 spare devices. It's now reshaping itself to 
RAID-6 with 4 active and 1 spare.

What I meant was

mdadm /dev/md1 --grow --level=6 --raid-disks=5 --backup-file=...

Can I cancel reshape that's currently running, and using the backup file 
that's actually on another (RAID-1) array on three of the same drives, 
and running at ~7MB/s, and try again?

Cheers,

John.

             reply	other threads:[~2011-01-12  4:19 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-01-12  4:19 John Robinson [this message]
2011-01-12  4:49 ` Cancel reshape? NeilBrown
2011-01-12  4:49 ` John Robinson
2011-01-12  5:32   ` NeilBrown
2011-01-12  5:53     ` Speed up reshape? (was Re: Cancel reshape?) John Robinson
2011-01-12  6:02       ` NeilBrown
2011-01-13 13:44         ` John Robinson
2011-01-13 19:14           ` John Robinson

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