The instant snapshot feature enables you to take instant full snapshots, instant space-optimized snapshots, or instant plex-breakoff snapshots.
Compared to the tradition method, the instant snapshot feature has the following advantages:
the plexes or snapshot volumes do not require synchronization before taking the snapshots.
the snapshots are instantly available.
The instant snapshot feature provided by VVR can be used either from the Primary or the Secondary. VVR also provides you with the option to take space-optimized snapshots.