Open/MF Consistency Groups
When the Open/MF Consistency Preservation Function is used for Continuous Access Synchronous
for Mainframe consistency groups, open-system copy groups and mainframe system copy groups
within the same consistency group can be suspended at the same time, to preserve consistency
between mainframe system copy groups and open-system copy groups within the same consistency
group. An Open/MF consistency group is a consistency group that uses the Open/MF Consistency
Preservation Function and contains open system and mainframe copy groups.
Figure 4 (page 25) shows the effect of suspending a consistency group that uses the Open/MF
consistency preservation function.
Figure 4 Effect of Suspending an Open/MF Consistency Group
When the YKSUSPND command is issued from Business Continuity Manager for a mainframe
system copy group, open-system copy groups and mainframe system copy groups within the same
consistency group are suspended at the same time.
For more information about defining the Continuous Access Synchronous Open/MF Consistency
Preservation Function, see “Defining a configuration so that the Open/MF Consistency Preservation
function can be used” (page 234).
Copy group containers
A copy group container (CG container) is similar to a copy group, although instead of grouping
a set of copy pairs that have the same copy type, it groups a set of copy groups composed of
Grouping to simplify volume operations 25
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