HP 3PAR Operating System Software - Manual (Page 77)

Figure 23 Example Bidirectional Remote Copy Pair
Example backup system Example primary system
System1 System2 System name
112 125 System ID
System2 System1 Target system
Virtual volumes and volume groups •
Unidirectional setup
(System1 —> System2):
•
Unidirectional setup
(System1 —> System2):
One secondary volume group
(Group1.r112) contains one virtual
volume (vv1_remote) One primary volume group
(Group1) contains one virtual
volume (vv1)
• • Bidirectional setup
(System2 —> System1):
Bidirectional setup
(System2 —> System1):
One virtual volume (vv2) One virtual volume (vv2_remote)
One primary volume group
(Group2) One secondary volume group
(Group2.r125)
Setting Up the Systems for Bidirectional Remote Copy
In bidirectional Remote Copy, the backup system (for example, System2) also contains primary
volume groups and therefore is also considered a primary system for the purposes of the primary
volume groups it contains.
Verify that unidirectional 1-to-1 Remote Copy is already set up.
•
If a unidirectional 1-to-1 configuration is already set up, proceed to “Creating Volume Groups
for Bidirectional Remote Copy” (page 78) .
If unidirectional 1-to-1 Remote Copy is set up, the required links between the Remote Copy
systems already exist. To create a bidirectional configuration, you only need to create primary
Setting Up the Systems for Bidirectional Remote Copy 77