HP P9000 Business Continuity Manager User Guide

Grouping to simplify volume operations
Business Continuity Manager can group together copy pairs to improve the operability of managing
replicas of large-scale systems that handle substantial amounts of data. Copy pairs can be grouped
together and managed as a single entity. These group types are:
• Copy groups (see “Copy groups” (page 22))
• Consistency groups (see “Consistency groups” (page 23))
• Copy group containers (see “Copy group containers” (page 25))
CAUTION: If a consistency group is added to a copy group container, it can no longer be
operated on as a consistency group. The consistency group can then only be operated on by
performing operations on the copy group container.
Working with copy pairs in groups simplifies volume operation and reduces system administration
costs.
“Overview of volume operation” (page 22) shows an overview of volume operation.
Figure 3 Overview of volume operation
Copy groups
A copy group is a set of copy pairs that have the same copy type (Business Copy for Mainframe,
Continuous Access Synchronous for Mainframe, Continuous Access Asynchronous for Mainframe
or Continuous Access Journal for Mainframe), and is designated a copy group id for identification.
An operation performed on a copy group is performed on all of the copy pairs within that copy
group.
To define a copy group and assign a copy group id, see “Defining a copy group” (page 477).
22 Overview of HP P9000 for Business Continuity Manager Software