HP XP P9500 Storage - Manual (Page 35)

Establishing connections between multiple secondary systems
When using more than one primary system and more than one secondary system, connections
among the secondary systems must be established by configuring paths and ports.
To configure ports and paths between secondary systems
1.
Create a command device in each of the secondary systems.
2. Configure external ports on the secondary system to be used as the supervisor DKC.
3. Configure paths between the external ports on the supervisor DKC and the target ports on the
subordinate DKCs. In the example in
Table 4 (page 26) , secondary system 1 has external
ports, each of which is connected with a target port on the secondary systems 2 and 3.
For information about supervisor and subbordinate DKCs, see the bullet on “arbitration
processing” in
“Planning Cnt Ac-J Z in multiple P9500s using a consistency group” (page 31) .
For more information about external ports, see HP P9000 External Storage for Open and
Mainframe Systems User Guide.
For details on configuring paths, see HP P9000 Provisioning for Mainframe Systems User
Guide.
4. Create mapping between command devices in the supervisor DKC and the subordinate
DKCs.
Table 4 (page 26) shows an example. The supervisor DKC must be able to use command
devices in subordinate DKCs via remote command devices.
In the example, command devices A and B are created in the subordinate DKCs on secondary
systems 2 and 3. Remote command devices are created on the supervisor DKC in secondary
system 1 and are mapped to the subordinate DKCs. The emulation type of command devices
and remote command devices must be OPEN-V.
For more information about remote command devices, see HP P9000 External Storage for
Open and Mainframe Systems User Guide.
Planning Cnt Ac-J Z in multiple P9500s using a consistency group 35