G A L A X Y N A S L X 5 C O N F I G U R A T I O N A N D S Y S T E M I N T E G R A T I O N G U I D E
161
Section 3 Menu Functions
3.3.3 MAINTENANCE Snapshot Functions
Function: Snapshot tasks fig 3.3.3a
With this function you can manually activate (start) or deactivate (stop) snapshots. In order to define a
time schedule to activate the snapshot, click on the snapshot alias in the left-side pane. To view
snapshot details click on the down arrow button:
LV
Logical volume the snapshot is assigned to.
Size
Space reserved for the snapshot (point-in-time) data in GB.
Status
Snapshot status; contains the following combinations:
In use
Snapshot is:
currently used by an active backup or replication task,
created manually or via a time schedule.
Unused
Snapshot is available for backup or replication tasks as well as for time schedules or manual start.
Active
Snapshot has been activated by a backup task, a replication task, a time schedule or has been created
manually. If the snapshot has been created by a backup or a replication task, the point-in-time data is
available for that task. If the snapshot has been created via a time schedule or manually, the point-in-
time data can be accessed through:
NAS share (if the snapshot has been assigned to an NAS volume),
iSCSI target (if the snapshot has been assigned to an iSCSI volume),
FC group (if the snapshot has been assigned to an FC volume).
Inactive
Snapshot becomes inactive when the reserved space usage reaches 100%. Be aware that this will
prevent access to the point-in-time data! Please click on the
Stop
button in order to set the status back
to
Unused
.
Usage
Shows the usage of the reserved space in percentages. The usage percentage is equal to the amount
of user data changes on the volume. Once this reaches 100%, the snapshot status switches to In
use/Inactive and the point-in-time data cannot be accessed any more. In this situation, click on the Stop
button in order to remove the inactive snapshot.
