The log control file

The log control file contains information needed to describe the state of log extents, such as their size and location and the name of the next available extent.

Important: The log control file is for internal queue manager use only.

The queue manager keeps control data associated with the state of the recovery log in the log control file and you must not modify the contents of the log control file.

The log control file is in the log path and is called amqhlctl.lfh. When backing up or restoring your queue manager, ensure that the log control file is backed up and restored, along with your log extents.