Creating a 3dc multi-target configuration, 172 creating a 3dc multi-target configuration – HP XP P9000 Command View Advanced Edition Software User Manual
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Related topics
• Creating a 3DC multi-target configuration
• Limitations when performing 3DC configuration pair operations (mainframe systems)
Limitations when performing 3DC configuration pair operations (mainframe systems)
The following limitations and resolutions are to be noted when performing 3DC configuration pair
operations:
•
When operating Delta Resync, it is necessary to switch the direction of Continuous Access Syn-
chronous in advance. Because Replication Manager does not switch the direction automatically,
it is necessary to switch the direction manually.
•
The Force option cannot be added when executing Delta Resync.
•
Delta Resync can be executed for copy groups only. It cannot be executed for CTGs or copy pairs.
•
If a related Cnt Ac-J is deleted, the DeltaUR pair transitions to Simplex status. However the DeltaUR
pair information is not updated in Replication Manager. The DeltaUR pair information will be
deleted when a configuration update is performed. To resolve this, it is first necessary to delete
the DeltaUR and then delete the related Cnt Ac-J pair.
Defining copy groups in a multi-target or cascade configuration
To define copy groups in a multi-target or cascade configuration:
1.
Perform the pair group registration operations.
2.
To create a multi-target configuration, select a primary volume, and then click Add Group. To
create a cascade configuration, select a secondary volume, and then click Add Group.
3.
For each pair group, define a list of copy pairs that you want to include in the pair group.
4.
On the 3. Group Management page, create a copy group and assign a pair group to the copy
group.
5.
Repeat the operations for creating a copy group and assigning a pair group to the copy group.
Related topics
• Creating pairs and pair groups
• Copy type requirements for pair configuration definitions
• Permitted topologies for cascade and multi-target configurations
• About multi target and cascade copy pair configurations
Creating a 3DC multi-target configuration
To create a 3DC multi-target configuration that uses the delta resync function:
1.
Create Continuous Access Synchronous and Continuous Access Journal pair groups in a multi-target
configuration.
2.
With the secondary volume of the Continuous Access Synchronous pair selected, click Add Group.
3.
Specify the copy type option as Cnt Ac-J (3DC Delta).
Related topics
• Creating pairs and pair groups
Managing pair life cycle
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