From: John Robinson <john.robinson@anonymous.org.uk>
To: Leslie Rhorer <lrhorer@satx.rr.com>
Cc: linux-raid@vger.kernel.org
Subject: Re: Bitmap did not survive reboot
Date: Wed, 11 Nov 2009 16:02:32 +0000 [thread overview]
Message-ID: <4AFAE018.7040100@anonymous.org.uk> (raw)
In-Reply-To: <20091111145233013.LCTM5263@cdptpa-omta04.mail.rr.com>
On 11/11/2009 14:52, Leslie Rhorer wrote:
>> On 11/11/2009 08:53, Leslie Rhorer wrote:
[...]
>> risk of downtime anyway because your filesystem root is on a non-RAID
>> device, but while you can (as I think you've said before) replace the
>> boot disc quickly, you're exposing yourself to a long, slow resync which
>> will increase your downtime by perhaps days...
>
> That presumes a loss of the boot drive *AND* one or two RAID drives.
> That's pretty unlikely, unless something really nasty happens.
I don't think it does - even if none of the RAID drives goes, the system
crashing because of the root drive going AWOL might well leave the
system with the RAID array marked "dirty" because it wasn't shut down
cleanly, which without the bitmap would mean you'd get a full resync
when you rebooted.
Cheers,
John.
next prev parent reply other threads:[~2009-11-11 16:02 UTC|newest]
Thread overview: 30+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <4AF9ABAA.1020407@redhat.com>
2009-11-11 3:34 ` Bitmap did not survive reboot Leslie Rhorer
2009-11-11 3:46 ` Leslie Rhorer
2009-11-11 5:22 ` Majed B.
2009-11-11 8:13 ` Leslie Rhorer
2009-11-11 8:19 ` Michael Evans
2009-11-11 8:53 ` Leslie Rhorer
2009-11-11 9:31 ` John Robinson
2009-11-11 14:52 ` Leslie Rhorer
2009-11-11 16:02 ` John Robinson [this message]
2009-11-11 9:31 ` Majed B.
2009-11-11 14:54 ` Leslie Rhorer
2009-11-11 9:16 ` Robin Hill
2009-11-11 15:01 ` Leslie Rhorer
2009-11-11 15:53 ` Robin Hill
2009-11-11 20:35 ` Doug Ledford
2009-11-11 21:46 ` Ben DJ
2009-11-11 22:10 ` Robin Hill
2009-11-12 1:35 ` Doug Ledford
2009-11-12 0:23 ` Leslie Rhorer
2009-11-12 1:34 ` Doug Ledford
2009-11-12 4:55 ` Leslie Rhorer
2009-11-12 5:22 ` Doug Ledford
2009-11-14 21:48 ` Leslie Rhorer
2009-11-15 11:01 ` Doug Ledford
2009-11-15 19:27 ` Leslie Rhorer
2009-11-11 15:19 ` Gabor Gombas
2009-11-11 16:48 ` Leslie Rhorer
2009-11-11 20:32 ` Doug Ledford
2009-11-10 1:44 Leslie Rhorer
2009-11-10 1:58 ` Leslie Rhorer
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