The volume snapshot driver encountered an error while performing processing for volume online. Error: %2 Volume GUID: %1 ...

The volume snapshot driver encountered an error while performing processing for volume online.

Error: %2

Volume GUID: %1

Guidance:
When a volume is brought online the volume snapshot driver scans for any persistent snapshots that may be on the volume.  In case of an error this scan is not performed.  The error may have originated in storage drivers beneath the volume snapshot driver; check their logs.

If the error is STATUS_DEVICE_NOT_CONNECTED this means the volume is in snapshot protection mode and has been taken offline to prevent loss of snapshots.