Hitachi ShadowImage for IBM z/OS User"s Guide (T5213-96002, June 2007)

1-4 Overview of ShadowImage™ for z/OS
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Hitachi ShadowImage™ for IBM
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z/OS
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User’s Guide
Feature Highlights
Consistency Groups. For Universal Storage Platform V storage systems, the
ShadowImage software consistency-group function allows a user-defined
group of ShadowImage volume pairs to be split simultaneously, at a precise
moment in time, with a single command. This copy method creates a
consistent point-in-time copy of an entire system, database, or any related
sets of volumes—a technique that can replicate data between a primary
system and secondary systems anywhere in the world, with full data integrity.