On Fri, 2004-06-04 at 13:04, Jeremy Jackson wrote:
> XFS developers - there were a few notes about not reading from a block
> device with an XFS filesystem mounted (rw?).
>
> Will this interfere with lvm or device-mapper snapshots using the kernel
> vfs-lock patch? or xfs_freeze for that matter.
>
> I'm wondering if the snapshot would see a consistent filesystem. My
> concern is with using EVMS, which is based on device-mapper snapshots.
I was wondering about MD personally. As in, what happens when MD syncs
a mirror or stripeset? Does XFS get upset? If XFS expects special
treatment of its buffers, different from all other Linux filesystems, I
can see where some unusual problems could creep in. And my experience
with XFS under heavy load was pretty much a constant stream of unusual
problems.
-jwb
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