HP XP P9500 Storage - Manual (Page 153)

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A CU to be specified for a path set must include a volume to be defined in a Cnt Ac-S
copy group and a command device for the forward direction.
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Only define paths in the forward direction in a path set that is defined at the primary site.
Create a path set of paths for the reverse direction from the secondary site.
These steps create the path set definition file.
3. Create a route list for the forward direction (Primary
→ Intermediate → Remote route).
From the Insert Remote Route Entry panel, add route entries for the intermediate or remote
site. The Insert Remote Route Entry panel is displayed by specifying r for AC in the Entire
Route Information panel.
To see procedures for defining a route list, see “Defining a route list” (page 541) .
4. Establish an inter-control unit logical path (Primary
→ Intermediate).
Establishing an inter-control unit logical path is part of creating the path set definition file.
Defining a 3DC Cascade (Cnt Ac-S Z x Cnt Ac-J Z) configuration 153