Oracle Configuration Example

The following diagram shows examples of Oracle Active/Standby and Active/Active configurations in a LifeKeeper environment.

Active/Standby (Oracle Home Shared)

Installing Oracle Base, Oracle Home on a shared or replicated volume

• Configuration files (such as listener.ora) can be changed in one place, but services must be stopped during Oracle Home maintenance.
• Since Oracle Managed Files can be used, the Oracle database installation can also be used through Typical Configuration.
  

Active/Standby (Oracle Home not shared)

Install Oracle Base, Oracle Home on a non-shared disk such as a local disk

• Although changes to configuration files (such as listener.ora) are required on both servers, maintenance of the Oracle Home on the standby node is possible while it is running.
• “Typical Configuration” cannot be used at the Oracle database installation because Oracle Managed Files cannot be used. Perform this using the Advanced configuration.
  

Active/Active (Oracle Home Shared)

Prepare two sets of shared or replicated volumes and install Oracle Base and Oracle Home on each of them.

• Two SIDs can be run on each server, making effective use of the server.
• Other constraints are the same as Active/Standby (Oracle Home sharing).
  

Active/Active (Oracle Home not shared)

Install Oracle Base and Oracle Home in two locations on non-shared disks such as local disks

• Two SIDs can be run on each server, making effective use of the server.
• Creating two SIDs in one Oracle Home is currently not supported.
• Creating two Oracle Homes under one Oracle Base is currently not supported.
• Other constraints are the same as Active/Standby (Oracle Home not shared).