From: malahal@us.ibm.com
To: dm-devel@redhat.com
Cc: agk@redhat.com
Subject: Re: DM-RAID1 data corruption
Date: Tue, 26 May 2009 18:33:28 -0700 [thread overview]
Message-ID: <20090527013328.GA18627@us.ibm.com> (raw)
In-Reply-To: <Pine.LNX.4.64.0904200552590.27291@hs20-bc2-1.build.redhat.com>
Mikulas, does RedHat have a bugzilla bug opened for this problem?
Mikulas Patocka [mpatocka@redhat.com] wrote:
> MD-RAID1 solves this problem by having counters in superblocks on both
> legs. If some leg dies, the counter on the other devices is increased. If
> the dead disk comes online again, it is found that it has old counter and
> cannot be trusted.
>
> Would it be possible to extend a logical volume when converting it to a
> raid1 and use the last area of the volume as a superblock?
Interesting idea. Any more thoughts on this front?
next prev parent reply other threads:[~2009-05-27 1:33 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-04-14 20:46 DM-RAID1 data corruption Mikulas Patocka
2009-04-14 21:07 ` Takahiro Yasui
2009-04-15 3:12 ` malahal
2009-04-15 20:38 ` Takahiro Yasui
2009-04-16 2:49 ` malahal
2009-04-16 22:24 ` Takahiro Yasui
2009-04-20 9:56 ` Mikulas Patocka
2009-04-20 17:08 ` Takahiro Yasui
2009-05-27 1:33 ` malahal [this message]
2009-06-23 1:09 ` malahal
2009-06-23 16:44 ` Takahiro Yasui
2009-06-23 18:22 ` malahal
2009-06-24 3:03 ` Neil Brown
2009-06-24 16:09 ` Takahiro Yasui
2009-06-25 14:47 ` Mikulas Patocka
2009-06-25 16:16 ` Takahiro Yasui
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