Hardware manual

Group Administration Advanced volume operations
10–14
Creating a schedule
When you create a schedule, you specify the attributes described in Table 10-2.
1. Do one of the following:
• For a volume, click
Volumes, then expand Volumes, then select the volume, and then click Create
schedule
.
• For a volume collection, click
Volumes, then expand Volume Collections, then select the collection,
and then click
Create schedule.
2. In the Create Schedule – Schedule Type dialog:
• Enter a schedule name.
• Select the type of schedule (snapshot or replication).
• Select the frequency. Alternately, click
Reuse existing schedule to use an existing schedule as the
basis for the new schedule. You can then modify the schedule attributes.
• Choose whether you want to enable the sche
dule.
Click
Next.
3. The next dialog box depends on the selected schedule frequency and enables you to control how often the
sche
dule runs, the number of snapshots or replicas to keep, and whether the snapshots are read-write or read-
only.
If you selected
Run once for a frequency, the Create Schedule – Run Once dialog box appears.
If you select
Hourly schedule for a frequency, the Create Schedule – Hourly Schedule dialog box appears.
If you select
Daily schedule for a frequency, the Create Schedule – Daily Schedule dialog box appears.
Then, click
Next.
4. In the Create Schedule – Summary dialog box, if the
schedule configuration is correct, click Finish. To make
changes, click
Back.
Number of
snapshots or
replicas to keep
How many snapshots or replicas to keep (from 1 to 512; the default is 10). This attribute applies only to
snapshots or replicas that the schedule creates.
If the schedule exceeds the maximum number of snapshots or
replicas to keep, the group automatically
deletes the oldest snapshots or replicas before creating new ones.
The group closes any active iSCSI connections to a snapshot before deleting the snapshot.
Regardless of the number of snapshots and replicas you choose to keep, the size
of the snapshot reserve and
the replica reserve limits the number of snapshots and replicas.
Snapshot
permis
sion
Applicable only to snapshot schedules, applies either read-write or read-only (the default) permission to the
snapshots that the schedule creates.
Table 10-2: Schedule Attributes (Continued)
Attribute Description