Managing Snapshots

To take snapshots:

1. Stop the portal server: portal-manage.sh stop
2. Add the following settings to the portal server in /etc/ctera/portal.cfg:
   CTERA_STORAGE_MAX_SNAPSHOTS = <maximum_number_of_snapshots_allowed>
SNAPSHOTS_INTERVAL = <interval_in_hours_between_snapshots>
SOFTLAYER_API_KEY = <softlayer_api_key>
SOFTLAYER_USERNAME = <softlayer_account_username>
3. Start the portal server: portal-manage.sh start
   You can manually create snapshots of the CTERA datapool iSCSI volumes, using the portal-storage-util.shcommand.
   Note

   The datapool must be a single disk for snapshot support.
   Use the following commands to manage snapshots:
   To take a snapshot: portal-storage-util.sh take_snapshot
   To display the list of existing snapshots: portal-storage-util.sh display_snapshots
   To destroy a specific snapshot: portal-storage-util.sh destroy_snapshot <snapshot_id>
   To restore the file system to a specific snapshot: portal-storage-util.sh rollback_snapshots <snapshot_id>
   When a volume is deleted the snapshots for that volume are also deleted. If the volume is detached from the portal instance, the snapshot is not accessible.