Veritas Storage Foundation 5.1 SP1 for Oracle RAC Administrator"s Guide (5900-1512, April 2011)

Tunable parameters

This chapter includes the following topics:

■ About SF Oracle RAC tunable parameters

■ About GAB tunable parameters

■ About LLT tunable parameters

■ About LMX tunable parameters

■ About VXFEN tunable parameters

■ Tuning guidelines for campus clusters

About SF Oracle RAC tunable parameters

Tunable parameters can be configured to enhance the performance of specific SF

Oracle RAC features. This chapter discusses how to configure the following SF

Oracle RAC tunables:

■ GAB

■ LLT

■ LMX

■ VXFEN

Symantec recommends that the user not change the tunable kernel parameters

without assistance from Symantec support personnel. Several of the tunable

parameters preallocate memory for critical data structures, and a change in their

values could increase memory use or degrade performance.

Chapter