HP XP P9500 Storage - Manual (Page 236)

Table 78 Prerequisite Hardware (4x4x4 Cascade Configuration)
Remarks Description Item
You need a host for a remote site when using
Business Continuity Manager at a remote site. One host computer is required for each of the
primary, intermediate, and remote sites. Host
-- One or more XP12000 or XP24000 storage
systems are required for each site. Storage system
-- A physical path connected by a Fibre Channel
cable 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)
Remarks 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
Use Remote Web Console for the setup. An arbitration path from the supervisor disk
controller to each subordinate disk controller
(unidirectional). Arbitration path
Use Remote Web Console for the setup. Set up a remote command device by mapping it
to the supervisor disk controller of the arbitration
command device. Remote command device
Use Remote Web Console for the setup. A journal group is required for each storage
system between the intermediate site and the
remote site (Timer type: SYSTEM). Journal group
Use Remote Web Console for the setup. At least one journal volume is required for each
storage system at the intermediate and remote
sites. Journal volume
Use Business Continuity Manager for the setup. Command devices that can be used for the route
lists below are required (see
Table 81 (page 237) )
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.
236 Configuration definitions