o  The RMU Reclaim command runs on-line and does not require
       exclusive access. However, if there are any users connected
       to the database in DBKEY SCOPE IS ATTACH mode, the RMU/RECLAIM
       operation has greatly reduced effect. In order to release all
       possible locked space, there should be no users attached to
       the database in DBKEY SCOPE IS ATTACH mode.

    o  To allow database page locked space to be reclaimed, the
       database session that controls the locked space must be
       detached from the database. This can be accomplished by
       having each attached session disconnect and reconnect to the
       database.