Options for propagating a PowerHA SystemMirror file collection

Use one of the following methods to propagate a PowerHA® SystemMirror® file collection:

• Propagate the file collection at any time manually. You can propagate files in a file collection from the PowerHA SystemMirror File Collection SMIT menu on the local node (the node that has the files you want to propagate).
• Set the option to propagate the file collection whenever cluster verification and synchronization is executed. The node from which verification is run is the propagation node. (This is set to No by default.)
• Set the option to propagate the file collection automatically after a change to one of the files in the collection. PowerHA SystemMirror checks the file collection status on each node (every 10 minutes by default) and propagates any changes. (This is set to No by default.)

  One timer is set for all file collections. You can change the timer. The maximum is 1440 minutes (24 hours) and the minimum is 10 minutes.

You can set up and change file collections on a running cluster. However, note that if you add a node dynamically, the file collection on that node may have files that are not in sync with the files on the other cluster nodes. If the file collection on the node being added is set for automatic propagation upon cluster verification and synchronization, the files on the node just added are updated properly. If this flag is not set, you must manually run the file collection propagation from one of the other nodes.