Sun Microsystems StorageTek 6140 Administration Manual page 102

Array A
Replication
repository
volume
Relationship Between Arrays and Their Corresponding Replication Sets
FIGURE 4-1
After you create a replication set, you can modify its properties (see "About
Replication Set Properties" on page 88 for more information). You can also perform
volume operations, such as the following:
Extend replicated volumes, by adding storage first to the secondary volume and
then to the primary volume.
Create snapshots.
You can create a snapshot of either the primary or the secondary volume within a
replication set at any time.
Make volume copies.
A primary volume in a replication set can be a source volume or a target volume
in a volume copy. Volume copies are not allowed on secondary volumes. If a copy
of a secondary volume is required, perform a role reversal to change the
secondary volume to a primary volume. If a role reversal is initiated during a
volume copy in progress, the copy will fail and you cannot restart it. For more on
role reversal, see "About Primary and Secondary Role Reversal" on page 89.
Change volume mappings.
You can also delete a replication set. This removes the association between the
primary and secondary volumes, and the volumes revert to independent volumes.
Note: You cannot replicate a volume that is already in a replication set.
86 Sun StorageTek Array Administration Guide • May 2006
Physical connection
Data
Primary
Volume
Array B
Replication
repository
volume
Secondary
Volume