HP StorageWorks XP Remote Web Console Software - Manual (Page 115)

For detailed information about the 3DC cascading configuration, see “XP Continuous Access
Synchronous (3DC Cascading Configuration)” (page 82) . For detailed information about the 3DC
multi-target configuration, see “Data Volume Pairs” (page 18) .
Performing Remote Copy Between an XP12000/XP10000 Disk Array and an XP24000/XP20000 Disk Array 115