the way i understand it is that the only way to create a snapshot of a journaled filesystem (ext3, XFS, etc.) is to have the VFS lock patch applied to the kernel. this will lock the filesystem and allow it to flush the journal before it creates the snapshot. is this true? is there anyway to check to see if the VFS lock patch has been applied on a system before creating the snapshot? has this patch ever been added to the stock kernel or will every user that wishes to create a snapshot of a journaled filesystem have to manually apply the patch? is the VFS lock patch required for LVM2? what happens when a snapshot is created with a kernel that does not have the VFS lock patch? does the snapshot creation fail with valid return code? does the snapshot just hang up? is there any effect on the original LV? _______________________________________________ linux-lvm mailing list linux-lvm@redhat.com https://www.redhat.com/mailman/listinfo/linux-lvm read the LVM HOW-TO at http://tldp.org/HOWTO/LVM-HOWTO/
