Enables or disables whether or not the database system will
    automatically maintain as few locks as possible on database
    resources. The default is ENABLED, and results in fewer locks
    against the database. However, if contention for database
    resources is high, the automatic adjustment of locks can become a
    CPU drain. Such databases can trade more restrictive locking for
    less CPU usage by disabling adjustable lock granularity.

    Disabling adjustable locking granularity may require that the
    OpenVMS SYSGEN parameters for locks be increased.