From: "H. Peter Anvin" <hpa@zytor.com>
To: Mike Accetta <maccetta@laurelnetworks.com>
Cc: linux-raid@vger.kernel.org
Subject: Re: RAID1, hot-swap and boot integrity
Date: Sun, 04 Mar 2007 09:31:23 -0800 [thread overview]
Message-ID: <45EB026B.1040503@zytor.com> (raw)
In-Reply-To: <45E82EF8.9000106@laurelnetworks.com>
Mike Accetta wrote:
>
> I've been considering trying something like having the re-sync algorithm
> on a whole disk array defer the copy for sector 0 to the very end of the
> re-sync operation. Assuming the BIOS makes at least a minimal consistency
> check on sector 0 before electing to boot from the drive, this would keep
> it from selecting a partially re-sync'd drive that was not previously
> bootable.
The only check that it will make is to look for 55 AA at the end of the MBR.
Note that typically the MBR is not part of any of your MD volumes.
-hpa
next prev parent reply other threads:[~2007-03-04 17:31 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-03-02 14:04 RAID1, hot-swap and boot integrity Mike Accetta
2007-03-02 15:40 ` Justin Piszcz
2007-03-02 16:02 ` Gabor Gombas
2007-03-02 16:10 ` Gabor Gombas
2007-03-02 20:57 ` Bill Davidsen
2007-03-04 17:31 ` H. Peter Anvin [this message]
[not found] ` <9782.20070302161004.GE31010@boogie.lpds.sztaki.hu>
2007-03-05 23:32 ` Mike Accetta
2007-03-06 10:01 ` Gabor Gombas
[not found] ` <12470.45E88FAA.5020106@tmr.com>
2007-03-05 23:38 ` Mike Accetta
2007-03-06 23:17 ` Bill Davidsen
2007-03-07 20:48 ` H. Peter Anvin
[not found] ` <12721.45EB026B.1040503@zytor.com>
2007-03-05 23:47 ` Mike Accetta
2007-03-05 23:55 ` H. Peter Anvin
2007-03-06 23:18 ` Bill Davidsen
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