HP XP Racks - Manual (Page 241)

Table 78 Prerequisite Hardware (4x4x4 Cascade Configuration) (continued)
Remarks Description Item
information about the availability of specific
features for the array models being used.
-- A physical path connected by appropriately configured
fiber channel ports is required between the following
storage systems: Link between storage
systems (physical path)
• A bidirectional path between the storage systems at
the primary site and the intermediate site (for logical
paths)
•
A bidirectional path between the storage systems at
the intermediate site and the remote site (for logical
paths)
•
A unidirectional path from the supervisor disk
controller to each subordinate disk controller (for
arbitration path)
Table 79 Storage System Setting Items (4x4x4 Cascade)
Setting Description Item
Use Remote Web Console for the setup. At least one arbitration command device is
required for each subordinate disk controller. Arbitration command device
An arbitration path from the supervisor disk
controller to each subordinate disk controller
(unidirectional) Arbitration path
The remote command device is set by
mapping an arbitration command device to
the supervisor disk controller. Remote command device
A journal group is required for each storage
system between the intermediate site and the
remote site (Timer type: SYSTEM). Journal group
Use Business Continuity Manager for the
setup. Command devices that can be used for the
route lists below are required (See
Table 81 (page 242) ).
Command device
•
Route list required when all sites are
available
•
Route list used when a failure occurs at a
site (recommended)
Use Remote Web Console or Business
Continuity Manager for the setup. Logical path •
An inter-control unit logical path
(bidirectional) must be established between
the primary site and the intermediate site.
• An inter-disk controller logical path
(bidirectional) must be established between
the intermediate site and the remote site.
Preparing the Configuration Files (4x4x4 Cascade)
You need to install Business Continuity Manager Cnt Ac-J Z 4x4 Extended CTG.
The following table describes the configuration files required for using Business Continuity Manager
in a 4x4x4 Cascade configuration.
Defining a 4x4x4 Cascade Configuration 241