Oracle Exadata System Software release 21.2.0 extends I/O Resource Management (IORM) to include the cluster plan. The IORM cluster plan specifies how storage server resources are allocated across multiple Oracle Grid Infrastructure clusters. Each directive in a cluster plan specifies an allocation to an Oracle Grid Infrastructure cluster, rather than an individual database or consumer group.

For example, consider a system hosting two clusters; clusterA and clusterB. Now, imagine a cluster plan with share-based resource allocation where clusterA has three shares, and clusterB has one share. In that case, and in the absence of any other IORM plans, all of the databases running in clusterA share 75% of the I/O resources, while the databases in clusterB share the remaining 25%.

Minimum requirements:

• Oracle Exadata System Software release 21.2.0
• To operate the IORM cluster plan, ASM-scoped security must be configured.