Message ID | alpine.LRH.2.02.1512021230450.15019@file01.intranet.prod.int.rdu2.redhat.com (mailing list archive) |
---|---|
State | Accepted, archived |
Delegated to: | Mike Snitzer |
Headers | show |
Index: linux-4.4-rc3/Documentation/device-mapper/snapshot.txt =================================================================== --- linux-4.4-rc3.orig/Documentation/device-mapper/snapshot.txt 2015-12-02 18:26:34.000000000 +0100 +++ linux-4.4-rc3/Documentation/device-mapper/snapshot.txt 2015-12-02 18:29:10.000000000 +0100 @@ -49,6 +49,10 @@ The difference between persistent and tr snapshots less metadata must be saved on disk - they can be kept in memory by the kernel. +When loading or unloading the snapshot target, the corresponding +snapshot-origin or snapshot-merge target must be suspended. A failure to +suspend the origin target could result in data corruption. + * snapshot-merge <origin> <COW device> <persistent> <chunksize>