Oracle Real Application Clusters on IBM AIX – Best practices in memory tuning and configuring for system stability

Customers who experience Oracle Real Application Clusters (RAC) node evictions due to  excessive AIX kernel paging should carefully review and implement these recommended best practices. Testing and experience have found that memory over commitments may
cause scheduling delays for Oracle’s ‘oprocd’ process in Oracle RAC versions prior to 11.2 which may result in node evictions. Implementing all of these recommendations will reduce scheduling delays and corresponding oprocd initiated evictions for Oracle RAC versions prior to 11.2. For Oracle RAC versions 11.2 and later, implementing all of these recommendations will ensure optimal performance and scalability

 

http://www.oracle.com/technetwork/products/clusterware/overview/rac-aix-system-stability-131022.pdf

If link above is broke see below  click below:

rac-aix-system-stability-131022

Enjoy…

 

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