HP XP P9500 Storage - Manual (Page 108)

3. Define a Continuous Access Journal Z copy group by using volumes detected by executing a
remote scan on a remote storage system (for P-VOLs) and executing an NG scan (for S-VOLs).
Operating a copy group including Non Gen'ed volumes
For Continuous Access Journal Z, you need a command device to perform operations on Non
Gen'ed volumes.
Figure 61 (page 108) presents an operational image of a copy group including Non Gen'ed volumes
using a command device.
Figure 61 Copy group operational image for Non Gen'ed volumes using a command device
For Business Copy Z, you do not need a command device to perform operations on Non Gen'ed
volumes because of using the Gen'ed volumes that are Business Copy Z pairs.
Figure 62 (page 109) presents an operational image of a copy group including Non Gen'ed volumes
using a Gen'ed volume that is a Business Copy Z pair.
108 Understanding Business Continuity Manager functions