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| -rw-r--r-- | Documentation/device-mapper/snapshot.txt | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/Documentation/device-mapper/snapshot.txt b/Documentation/device-mapper/snapshot.txt index ad6949bff2e3..b8bbb516f989 100644 --- a/Documentation/device-mapper/snapshot.txt +++ b/Documentation/device-mapper/snapshot.txt @@ -49,6 +49,10 @@ The difference between persistent and transient is with transient 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> |