HP XP P9500 Release Note page 11

Table 17 Hardware settings
Item
Arbitration command devices
Journal groups
Journal volumes
Command devices
Logical paths
Description
DKCs at the Remote site: One or more
arbitration command devices for each
subordinate DKC.
Journal groups for Cnt Ac-J. Timer type
must be "System."
Journal volumes for Cnt Ac-J.
In 2x2x2 configuration: 3 devices for
each DKC, 18 devices in total.
In 4x4x4 configuration: 3 devices for
each DKC, 36 devices in total.
Between the Primary and Local sites:
Inter-CU logical paths (bi-directional).
Between the Primary and Remote sites:
Inter-DKC logical paths (bi-directional).
Between the Local and Remote sites:
Inter-DKC logical paths (bi-directional).
Remarks
Arbitration command devices must be set
up with Remote Web Console.
Required at the Primary, Remote, and
Local sites.
Journal groups must be set up with the
Remote Web Console before running
a script.
One or more of journal volumes are
required at each of the Primary,
Remote, and Local sites.
Prerequisites 1 1