[linux-lvm] Re: [PATCH] 64 bit scsi read/write
Daniel Phillips
phillips at bonn-fries.net
Sat Jul 14 20:11:30 UTC 2001
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
More information about the linux-lvm
mailing list