HP XP Array Manager Software - Manual (Page 172)

• The primary and secondary DADIDs defined in the copy group definition file at the origin must
be defined in the copy group definition file at the destination.
• The disk configuration definition files must already be distributed to the distribution destination
host before the copy group definition files can be distributed.
• The distribution destination BCM or P9000 mainframe agent host has required access permissions.
Conditions for changing copy group distribution primary host
The following condition must be satisfied before a copy group distribution primary host can be
changed:
• The copy group definition file must be previously distributed from the primary host by Replication
Manager. (This implies a distribution relationship must already exist between the copy groups.)
The following conditions occur when a copy group distribution primary host is changed:
• Alert monitoring for the copy group by the previous primary host is stopped. To continue alert
monitoring after the primary host is changed, it is necessary to create an alert setting for the copy
group of the new primary host.
• Copy group status is not displayed on the My Copy Groups view. To display the copy group status
after changing the primary host, you must replace the copy group of previous primary host with
that of new primary host on the Edit My Copy Groups window.
Conditions that disrupt copy group distribution relationships
Copy group linkage is disrupted if either of the following conditions occur:
• The distribution relationship of the primary side DADID and secondary side DADID used by the
copy group is deleted
• The primary host of the copy group is deleted from the information source
If either of the conditions occur, the relevant copy group cannot be a distribution target. In order to
perform distribution again it is necessary to delete the distribution destination copy group and clear
the copy group definition file.
About pre-distribution of copy group definition files
Pre-distribution of copy group definition files involves distribution of the latest copy group definition
file from the current primary host to the copy group that will be the next primary host. This distribution
occurs when the primary host is being changed and the copy group definition of the original primary
host does not match the copy group definition of the new primary host. During this distribution, the
file can be distributed to only one user-selected primary host (destination).
Pre-distribution of copy group configuration definition files prevents the following problems:
• A copy group definition is no longer current because the primary host has changed.
• The primary host and copy group definition file are changed concurrently resulting in the primary
host's configuration definition file being inconsistent before and after the change. In this case, if
distribution of the copy group definition file starts after the primary host has been changed, the
old copy group definition file is distributed.
Managing pair life cycle 172