Figure 90 Configuration Example when a 3DC Cascade Configuration is Expanded to a 4x4x4
Cascade Configuration
Setting up the Storage System
Set up the following items by using Remote Web Console.
1. Configure an arbitration command device on the subordinate disk controller.
2. Set up an arbitration path from the supervisor disk controller to the subordinate disk controller.
3. Map the arbitration command device on the subordinate disk controller to the supervisor disk
controller (setup of the remote command device).
4. Register the journal group (timer type: SYSTEM) in each of the intermediate site and remote
site storage systems.
Setting up a Business Continuity Manager Environment
For the series of storage systems to be added, scan the storage system, define a path set and a
route list, establish a logical path, and register a command device. For details on the procedure,
see “Setting up a Business Continuity Manager Environment”.
226 Configuration Definitions
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