From: Ronal Andadinata <randadinata@gmail.com>
To: linux-raid@vger.kernel.org
Subject: mdadm, bitmap and split-brain
Date: Sun, 27 Nov 2011 03:28:31 +0700 [thread overview]
Message-ID: <4ED14BEF.2060301@gmail.com> (raw)
Hi,
I'm wondering, in the case of raid1 array with internal bitmap, it goes
like this :
1. Machine A has 1 raid1 array with Disk1 dan Disk2
2. Dettach Disk2 from Machine A, put it on Machine B
3. Machine A runs normally, Machine B runs on normally on different place.
4. Detach Disk2 from Machine B, put it back on Machine A, re-add Disk2
to md1
If this were raid1 without bitmap, Disk2 will be overwritten from
scratch with contents of Disk1, what happen if the array has bitmap ?
Would there be partial sync ? Would the two disk be identical with only
using partial sync ?
next reply other threads:[~2011-11-26 20:28 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-11-26 20:28 Ronal Andadinata [this message]
2011-12-06 4:45 ` mdadm, bitmap and split-brain NeilBrown
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