Using outboard policy management support, you can specify whether a Peer-to-Peer VTS makes a copy of a logical volume immediately or defers the copy operation to a later time. This is known as selective peer-to-peer copy mode. It allows greater flexibility in allocating system resources. This function overrides, on a volume-by-volume basis, the existing copy mode setting.
Use the library manager management class policy to specify whether a volume’s copy is made with the immediate or deferred copy mode.
If you do not predefine the management class policy construct at the PtP VTS library and the VTS system automatically assigns default actions to the policy, the selective peer-to-peer copy mode uses the current copy mode setting. If you update the management class policy construct to make an immediate or deferred copy of the volume, that management class policy setting overrides the current setting the next time the volume is written.