6.1.5 Control Persistent Memory Usage for Specific Databases

This feature introduces pmemcache and pmemlog, which are two new directives for the interdatabase IORM plan. With these directives, you can control persistent memory usage for specific databases and ensure that valuable persistent memory resources are reserved for mission-critical databases, especially in consolidated environments.

You can set pmemcache=off to prevent the specified database from using the persistent memory (PMEM) cache. Likewise, setting pmemlog=off prevents the specified database from using the PMEM log. By default, all databases can use persistent memory for caching and logging.

You can check the current IORM plan settings by issuing the command LIST IORMPLAN DETAIL in CellCLI.

See Using IORM to Control Database Access to Flash and PMEM Resources and Controlling Access to PMEM Cache and PMEM Log in the Oracle Exadata System Software User's Guide for more information.

Minimum requirements:

• Oracle Exadata System Software release 20.1.0
• Oracle Exadata X8M