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From: Goswin von Brederlow <goswin-v-b@web.de>
To: linux-raid@vger.kernel.org
Subject: Requesting replace mode for changing a disk
Date: Sat, 09 May 2009 00:15:35 +0200	[thread overview]
Message-ID: <8763gb44xk.fsf@frosties.localdomain> (raw)

Hi,

consider the following situation: You have a software raid that runs
fine but one disk is suspect (e.g. SMART says failure imminent or
something). How do you replace that disk?

Currently you have do fail/remove the disk from the raid, add a
fresh disk and resync. That leaves a large window in which redundancy
is compromised. With current disk sizes that can be days.

It would be nice if one could tell the kernel to replace a disk in a
raid set with a spare without the need to degrade the raid.

Thoughts?

MfG
        Goswin

             reply	other threads:[~2009-05-08 22:15 UTC|newest]

Thread overview: 24+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2009-05-08 22:15 Goswin von Brederlow [this message]
2009-05-09 11:41 ` Requesting replace mode for changing a disk John Robinson
2009-05-09 23:07 ` Bill Davidsen
2009-05-10  1:22   ` Goswin von Brederlow
2009-05-10  2:20   ` Guy Watkins
2009-05-10  7:02     ` Goswin von Brederlow
2009-05-10 14:33     ` Bill Davidsen
2009-05-10 15:55       ` Guy Watkins
2009-05-13  1:21   ` Leslie Rhorer
2009-05-13  3:27     ` Goswin von Brederlow
2009-05-13  4:36       ` Neil Brown
2009-05-13  7:37         ` Goswin von Brederlow
2009-05-13 11:02           ` Neil Brown
2009-05-14 10:44         ` David Greaves
2009-05-14 12:00           ` Neil Brown
2009-05-13  4:31     ` Neil Brown
2009-05-13  4:37       ` SandeepKsinha
2009-05-13  4:54         ` Neil Brown
2009-05-13  5:07           ` SandeepKsinha
2009-05-13  5:21             ` NeilBrown
2009-05-13  5:31               ` SandeepKsinha
2009-05-13 10:51                 ` Neil Brown
2009-05-13  7:28       ` Goswin von Brederlow
2009-05-13  4:08 Sandeep K Sinha

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