HP XP P9500 Storage - Manual (Page 71)

12. At the primary site, establish consistency groups and create the Continuous Access Synchronous
pairs in the original direction. You may use the "none" initial copy option because all P-VOLs
and S-VOLs are synchronized. If there is any possibility that the volumes are not 100%
synchronized, use the Entire Volume initial copy option to be safe.
13. Vary the primary system and P-VOLs online, and start the host operations.
Transfer operations back to the primary site 71