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What volume ComplianceClock is

The volume ComplianceClock is a time-based security feature for each volume. The volume ComplianceClock is used to determine the expiry date of WORM files and Snapshot copies in a SnapLock volume.

The volume ComplianceClock is initialized automatically during the creation of a new SnapLock volume. When a new SnapLock volume is created, the volume ComplianceClock gets its initial time from the system ComplianceClock time.

Since, each SnapLock volume maintains its own volume ComplianceClock value; therefore, a change in the ComplianceClock value of one volume does not affect the ComplianceClock of any other volume.

How volume ComplianceClock interacts with the system ComplianceClock

The volume ComplianceClock obtains its starting value from the system ComplianceClock time when a new volume is created. Therefore, a continuous association is maintained between the volume ComplianceClock and system ComplianceClock. This association minimizes the instances of ComplianceClock lag.