8 Working with Volume Snapshots
88 CTERA C-Series User Guide
Cloud snapshots can be accessed via the CTERA Portal and, when Windows File Sharing is
enabled, locally.
NEXT3™ Volume Snapshots
NEXT3 volume snapshots are stored locally on a NEXT3-snapshot-enabled volume and can
be accessed at local speeds. NEXT3 was developed by CTERA to add flexible snapshots to
EXT3, along with easy transition from and to EXT3.
NEXT3 snapshots are faster to access locally than cloud snapshots, regardless of the
number of stored snapshots. Furthermore, you can configure appliance to automatically
take NEXT3 snapshots and retain them according to a specified retention policy. On the
downside, NEXT3 snapshots are stored onsite, and so are vulnerable to disasters.
It is recommended to combine NEXT3 snapshots for fast recovery from non-disaster
situations (such as an important file being accidentally overwritten by one of your office
employees), with cloud snapshots for recovery from major disasters such as flood or fire.
NEXT3 Snapshots are available for NAS volumes only, SAN volumes do not support
snapshots.
Workflow
To use snapshots, do the following:
1 Enable NEXT3 snapshots for specific volumes.
See Adding and Editing Logical Volumes (on page 73).
2 Do one or more of the following:
Schedule automatic snapshots and a retention policy for all NEXT3-snapshot-enabled
volumes.
See Scheduling Automatic Snapshots (on page 89).
Snapshots will be taken for all NEXT3-snapshot-enabled volumes according to the
configured schedule, and they will be retained according to the specified retention
policy.
Manually take a snapshot of a selected NEXT3-snapshot-enabled volume.
See Manually Taking Snapshots (on page 93).
A NEXT3 snapshot is immediately created. The snapshot will be retained until
manually deleted.
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