HP XP Array Manager Software User Manual
Page 162
Requirements for the copy type when creating a cascade configuration
Copy type of the pair group to be connected by group addition
Copy type of
the original pair
group
Continuous Ac-
cess Journal
Continuous Access
Asynchronous
Continuous Ac-
cess Synchron-
ous
Snapshot
Business
Copy
Y
Y
Y
N
Y
Business Copy
N
N
N
N
N
Snapshot
Y
N
N
Y
Y
Continuous Ac-
cess Synchronous
N
N
N
Y
Y
Continuous Ac-
cess Asynchron-
ous
N
N
N
Y
Y
Continuous Ac-
cess Journal
Legend:
Y: This type of pair group can be connected.
N: This type of pair group cannot be connected.
Requirements for the copy type when creating a cascade configuration (mainframe systems)
Copy type of the pair group to be connected by group addition
Copy type of the
original pair
group
Continuous Ac-
cess Journal
Continuous Access
Asynchronous
Continuous Access
Synchronous
Business Copy
Y
Y
Y
N
Business Copy
Y
N
N
Y
Continuous Access
Synchronous
N
N
N
Y
Continuous Access
Asynchronous
N
N
Y
Y
Continuous Access
Journal
Legend:
Y: This type of pair group can be connected.
N: This type of pair group cannot be connected.
Permitted topologies for cascade and multi-target configurations
The following restrictions apply when creating cascade or multi-target configurations or deleting copy
groups in cascade or multi-target configurations:
•
When creating a cascade configuration, it is necessary to first create a higher-level copy group.
Higher-level copy groups cannot be added to lower-level copy groups
Managing pair life cycle
162