For Continuous Access Synchronous Z or Continuous Access Asynchronous for Mainframe
copy groups, establish the inter-control unit logical paths.
For details on how to define a path set, see “Establishing a logical path” (page 456).
6. Define the route list for the forward and reverse directions (from the primary site to the
secondary site, and from the secondary site to the primary site) from the primary site.
7. Register a command device for the forward direction in the storage systems of the primary
and secondary sites from the primary site.
For details on how to register a command device, see “Registering a command device in a
Storage System” (page 470).
Defining a 2DC configuration 133
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