Chapter 3 Preparing for Universal Replicator z/OS Operations 3-21
Hitachi Universal Replicator for IBM /OS User’s Guide
Connections Between Secondary Storage Systems
If you use more than one primary storage system and more than one
secondary storage system, you must establish connections among the
secondary storage systems. To do this, you must configure paths and ports.
Also, you must create remote command devices by using Universal Volume
Manager.
The following figure is an example of connections among secondary storage
systems.
Legend
：mapping
Supervisor DKC
(Secondary storage system 1)
Subordinate DKC
(Secondary storage system 2)
Remote
command device
A
A’
B
B’
Subordinate DKC
(Secondary storage system 3)
Target
port
External
port
External
port
Target
port
Command device
Command device
Remote
command device
Figure 3-7 An Example of Connections among Secondary Storage
Systems
Based on the example in Figure 3-7, the subsections below explain
configuration of paths and ports, and creation of remote command devices.
