Hardware manual

Group Administration Volume replication
12–25
Volume replication configuration attributes
Table 12-2 describes the attributes you set when configuring the volume for replication. The first column lists their
attributes and the second describe them. You can modify the replication configuration an
d change the attribute
values.
Table 12-2: Volume Replication Configuration Attributes
Attribute Description
Replication partner Partner that stores the volume replicas. The partner must have space delegated to the group.
See Configuring replication partners o
n p
age 12-17.
Local replication reserve
percentage
Space for use during replication and optionally for storing the failback snapshot. This space is
cons
umed from the same pool as the volume.
See About local replication reserve on pa
ge 12-8.
Borrow space setting Enables you to borrow from free pool space if the local replication reserve size is
inadequate.
Note: To enable the borrow space setting or to borrow space, the pool must have at least 10%
free pool space.
Failback snapshot setting Enables you to keep the failback snapshot in
the local replication reserve. The failback snapshot
can expedite failback operations.
Replica reserve percentage Portion of delegated space on the partner for storing the volume replicas.
See Abou
t delegated space and replica reserve on page 12
-11.
Configuring a volume for replication
When you have configured at least one replication partner that has delegated space to the group, you can configure
volumes for replication.
Restriction: You c
annot configure a thin clone for replication until you replicate the template volume
to which the thin clone is attached.
To configure a volume for replication:
1. Gather the volume replication attributes. See Volume replication configuration attributes.
2. Click
Volumes in the lower-left panel, then expand Volumes, then select the volume, and then click
Configure replication.
3. In the Configure Volume Replication – General Settings window:
• Select the replication partner.
• Specify the replica reserve percentage.
• Specify the local replication reserve percentage and whe
ther to allow borrowed pool space.
Then, click
Next.
4. In the Configure Volume Replication – Advanced Settings window
, select whether to keep the failback
snapshot and click
Next.