On 5/26/16 6:17 AM, Gionatan Danti wrote: > On 26/05/2016 12:23, Emmanuel Florac wrote: >> Le Wed, 25 May 2016 09:37:41 +0200 >> Gionatan Danti <g.danti@xxxxxxxxxx> écrivait: >> >>> The snapshot is accomplished using the following commands: >>> >>> lvcreate -s hypervisor/KVM_Storage --name Backup_SNAP >>> lvchange -ay -K hypervisor/Backup_SNAP >>> mount -o nouuid /dev/hypervisor/Backup_SNAP /mnt/lvm/ >>> >> >> You need to use xfs_freeze to make the filesystem coherent before >> snapshot: >> >> xfs_freeze /dev/hypervisor/KVM_Storage >> lvcreate -s hypervisor/KVM_Storage --name Backup_SNAP >> xfs_freeze -u /dev/hypervisor/KVM_Storage >> lvchange -ay -K hypervisor/Backup_SNAP >> > > It was my understanding that filesystem freezing was automatically managed by LVM, and integrated into VFS long ago. > > I am missing something? Nope, you are correct. lvm snapshots handle fs quiesce. -Eric _______________________________________________ xfs mailing list xfs@xxxxxxxxxxx http://oss.sgi.com/mailman/listinfo/xfs
