GC_DB_LOCKS (Oracle7 Only)
Values:1 to unlimited
Default:0
Multiple Instances:Must have identical values
Specifies the total number of PCM locks covering data blocks cached in the multiple SGAs of a parallel server. This parameter must be set to a value greater by at least 1 than the sum of the locks set with the GC_FILES_TO_LOCKS initialization parameter. GC_DB_LOCKS is always rounded up to the next prime number in order to ensure that PCM locks are available for datafiles not specified in GC_FILES_TO_LOCKS.