PAC Requirements

Your Performance and Availability Cluster (PAC) must conform to the following requirements:

• All enterprise server instances in a PAC must be the same bitism.
• All machines participating in the PAC must have the same product version installed.

  This will avoid using inconsistent program versions between enterprise server instances.

• All machines participating in the PAC must be using the same version of the same operating system.
  Note: This is enforced when an enterprise server instance in a PAC is cold started, it determines the operating system version for the rest of the PAC members. If any enterprise server instance attempts to warm start and the version does not match it will be rejected.

  This minimizes the chance of a user programs failing to run on some of the enterprise server instances due to differences in OS-related functionality support.

• Set configuration files and environment variables that are used within a PAC. See Reference chapter for more information.