Unsupported configurations (mainframe systems), 165 unsupported configurations (mainframe systems) – HP XP Racks User Manual
Page 165
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
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.
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
•
When creating a cascade configuration, copy types and pair statuses of related copy groups must
be compatible
•
When deleting copy groups from a cascade configuration, you must first delete all lower-level
copy groups before deleting a higher-level copy group
•
The number of pairs that can be created varies depending on the storage system and copy type
Unsupported configurations (mainframe systems)
The following are a list of unsupported mainframe pair configurations. The Pair Configuration Wizard
cannot be initiated to perform operations to modify these configurations. The copy group definition
file should be edited directly because it is impossible to recover from these configurations using
Replication Manager.
Alternative configuration to im-
plement requirement
Requirement for configuration
Unsupported configuration
None
To create a backup of only some
volumes.
The number of pairs at the cascade
source and cascade destination is
different.
The number of pairs in multi-target
configurations is different.
Use different copy groups for each
S-VOL if there are copy pairs using
the same P-VOL in the copy group.
To set up a BC multi-target config-
uration.
Pairs in the copy group use the
same P-VOL.
User Guide
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