Snapshot Capture Stop/Start - Fujitsu ETERNUS DX60 Operation Manual

The number of configurable generations differs depending on the device model and firmware. See the manual accompanying
the ETERNUS Disk storage system.
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Schedule configuration
Sets the schedule for capturing the snapshots. A snapshot is taken on the day set every week or the hour set every day.
Figure 4.9 Outline of NAS Snapshot
Note
If a snapshot is collected while accessing a volume from an application, a snapshot at a point in time at which half-done data was
written to the volume could be created. In this case, the data consistency in the snapshot is not ensured, so that the operation of the
file in the snapshot is made impossible or the file content becomes incomplete.
Generally, to collect a snapshot whose data is consistent, the application accessing a volume must be stopped beforehand.
Configure a schedule for snapshot collection and the number of generations in a snapshot so that correct data can be traced back
through generations when data inconsistency is found in the snapshot.
4.6.1.3.2

Snapshot Capture Stop/Start

Where the NAS volume is temporarily not updated due to device maintenance period or long break, overwriting of past snapshots
can be prevented by stopping the snapshot capture. When restarting the snapshot capture, execute snapshot capture start. Snapshot
capture can be restarted carrying on with the snapshot before stopping.
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