32-Bit Mode or 64-Bit Mode

Before you decide which architecture to use for the Oracle UDLM and the Oracle relational database management system (RDBMS), note the following points.

• The architecture of both Oracle components must match. For example, if you have 64-bit architecture for your Oracle UDLM, you must have 64-bit architecture for your RDBMS.

• If you have 32-bit architecture for your Oracle components, you can boot the node on which the components reside in either 32-bit mode or 64-bit mode. However, if you have 64-bit architecture for your Oracle components, you must boot the node on which the components reside in 64-bit mode.

• You must use the same architecture when you boot all of the nodes. For example, if you boot one node to use 32-bit architecture, you must boot all of the nodes to use 32-bit architecture.