Hitachi G1000 - Protecting Global-Active Device Pairs

Protecting global-active device pairs
Using Replication Manager, configure in-system replication to further
safeguard the data on global-active device pairs in use by hosts on primary
and secondary storage systems.
Prerequisites
• The copy type is ShadowImage or Thin Image.
• The authentication mode is valid for the command device allocated to the
pair management server.
• If the primary and secondary storage systems are managed by one pair
management server, you cannot use the virtual IDs of the virtual storage
machine used by the global-active device pair. To use virtual IDs, a
dedicated pair management server is required for each storage system.
Procedure
1. On the global task bar, from the Tools menu, select Replication
Manager.
2. Select a global-active device volume and click Pair Management.
The Pair Configuration Wizard opens.
3. In the Copy Topology window, select the P-VOL, click Add Group, and
in the Add Pair Group dialog box, select SI as the copy type. Click OK.
The Copy Topology window graphically reflects the addition of the SI
pair group to the P-VOL.
Note: When you add a copy group to an existing copy pair, it is known as
a multi-target configuration when created on the primary side and a
cascade on the secondary side. For more information, see the Hitachi
Command Suite Replication Manager User Guide.
4. In the Copy Topology window, select the S-VOL, click Add Group, in
the Add Pair Group dialog box, select SI as the copy type, and then click
OK.
The Copy Topology window graphically reflects the addition of the SI
pair group to the S-VOL.
Tip: On the My Copy Groups tab, you can perform pair operations by
clicking the icon for SI (which displays SI pair information), and clicking
Change Pair Status.
5. Select the Finish page in the Pair Configuration Wizard to complete the
task.
Result
The global-active device pair is further protected with in-system
ShadowImage replication.
Using Hitachi Command Suite to set up global-active device
5-17
Hitachi Virtual Storage Platform G1000 Global-Active Device User Guide