Reading of a snapshot diff area's metadata began. Volume GUID: %1 Snapshot GUID: %2 Guidance: When a volume is brought online ...

Reading of a snapshot diff area's metadata began.

Volume GUID: %1
Snapshot GUID: %2

Guidance:
When a volume is brought online or reverted to a snapshot, the volume snapshot driver reads the diff area for the most-recent persistent snapshot (if any).  The diff area for earlier persistent snapshots is typically read the first time the snapshot is read from.

You should expect this event when a volume is brought online, reverted to a snapshot, or when reading from a persistent snapshot for the first time after bringing a volume online.  This event may also occur if a volume is dismounted that contains snapshots that have not been read since the volume was brought online.  No user action is required.