HP StorageWorks XP Remote Web Console Software - Manual (Page 225)

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Chapter 7 Using Extended Consistency Groups 7-1
Hitachi Universal Replicator for z/OS User’s Guide
Using Extended Consistency Groups
This chapter explains how to perform remote copy operations between more
than one primary and secondary storage system, as well as how to register
journal groups in extended consistency groups (abbreviated as EXCTG):
Registering Journal Groups in an Extended Consistency Group
Manipulating Data Volume Pairs in Extended Consistency Groups
Removing Journal Groups from an Extended Consistency Group
Forcibly Removing Journal Groups from an Extended Consistency Group