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[linux-lvm] Re: [PATCH] 64 bit scsi read/write
- From: Daniel Phillips <phillips bonn-fries net>
- To: Chris Wedgwood <cw f00f org>, Alan Cox <alan lxorguk ukuu org uk>
- Cc: Andrew Morton <andrewm uow edu au>,Andreas Dilger <adilger turbolinux com>,"Albert D. Cahalan" <acahalan cs uml edu>,Ben LaHaise <bcrl redhat com>,Ragnar Kjxrstad <kernel ragnark vestdata no>,linux-fsdevel vger kernel org, linux-kernel vger kernel org,mike bigstorage com, kevin bigstorage com, linux-lvm sistina com
- Subject: [linux-lvm] Re: [PATCH] 64 bit scsi read/write
- Date: Sat, 14 Jul 2001 22:11:30 +0200
On Saturday 14 July 2001 16:50, Chris Wedgwood wrote:
> On Sat, Jul 14, 2001 at 09:45:44AM +0100, Alan Cox wrote:
>
> As far as I can tell none of them at least in the IDE world
>
> SCSI disk must, or at least some... if not, how to peopel like NetApp
> get these cool HA certifications?
Atomic commit. The superblock, which references the updated version
of the filesystem, carries a sequence number and a checksum. It is
written to one of two alternating locations. On restart, both
locations are read and the highest numbered superblock with a correct
checksum is chosen as the new filesystem root.
--
Daniel
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