As of Rational® ClearCase® 7.0.1,
the lock manager process has been eliminated on hosts running the UNIX system
and most versions of Linux. On those hosts, database access to each VOB is
controlled by that VOB's db_server process, and lock manager
startup options are read by the db_server when it starts.
On Windows and some versions of Linux, VOB server hosts still run a single
lock manager process, which controls database access for every VOB on the
host.
Regardless of whether locking is managed by the
db_server or
a lock manager, locking behavior is controlled by default parameters, which
we refer to as lock manager startup options. The default values of these parameters
are intended to deliver good performance under a wide range of loads. However,
you might want to experiment with changing some of them on hosts that support
many VOBs or VOBs that have many users.
Note: After you change any lock manager
startup option, you must stop and restart Rational ClearCase on
the host before the change takes effect.