You can archive audit log data for the entire farm or for individual Web applications from the ControlPoint application interface. This is especially useful before moving a site collection, because once a site collection has been deleted from the source location its audit log data remains in the content database and becomes "orphaned."
1From the Manage ControlPint tree, choose ControlPoint Management > Audit Log Archive.
In the Available items section, select either the farm node or the individual Web applications whose audit log data you want to archive.
2Select the Parameters tab then enter the Number of Days to Keep in Audit Logs (that is, any audit log data that has been captured before this time period will be archived). If you want to archive all audit log data before deleting or moving a site collection, enter 0.
Now you can either:
·run the operation immediately (by clicking the [Run Now] button)