[linux-lvm] Help, lvm2 snapshot and XFS , using xfs_freeze to do this, but then lvcreate hang.

[David Brown]

Steve Feehan wrote:

> Are you saying that the lvcreate command literally executes xfs_freeze
> when used on a volume that happens to contain an XFS filesystem? Or
> that creating a snapshot is equivalent to using xfs_freeze?

Not literally, but the freeze/unfreeze is done by the dm driver in recent
kernels.  If your systems hangs on with the xfs_freeze -f, then you have a
kernel with this feature.  Just 'xfs_freeze -u' to allow the snapshot to be
created, and then continue to create the mirrors without a manual freeze.

Dave