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Porting To Parallel Server

Oracle Tips by Mike Ault


Problems With Parallel Server
 

Initialization Parameter

Version

Purpose

Lm_procs

8.x

Set number of lock manager processes

Lm_ress

8.x

Set number of resources for LM

Lm_locks

8.x

Set number of locks used by LM

Parallel_server

8.x

Startup in OPS if TRUE

Gc_lck_procs

7.x

Set number of OPS LM procs

Gc_releasable_locks

7.x

Releasable locks for OPS

Gc_rollback_locks

7.x

Undo locks for OPS

Gc_files_to_locks

7.x

Mapping between files and locks

Parallel_default_max_instances

7.x

Max number of instance for parallel rec.

Parallel_instance_group

8.x

Instance group to be used for all OPS operations

Ops_admin_group

8.x

Instance group to use for all V$ queries.

Table 1: PCM Initialization Parameters

 


For more information on this topic, I recommend Don Burleson's latest book "Oracle Tuning: The Definitive Reference". 

You can buy it direct from the publisher for 50%-off and get instant access to the code depot of Oracle tuning scripts:

http://www.rampant-books.com/book_1002_oracle_tuning_definitive_reference_2nd_ed.htm


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