5.1 Understanding I/O Resource Management (IORM)

IORM manages the storage server I/O resources on a per-cell basis. Whenever the I/O requests start to saturate a cell's capacity, IORM schedules incoming I/O requests according to the configured resource plans.

• About I/O Resource Management (IORM) in Exadata Database Machine
  IORM provides many features for managing resource allocations. Each feature can be used independently or in conjunction with other features.
• About Database Resource Management Within a Database
  Oracle Database Resource Manager enables you to manage workloads within a database.
• About Interdatabase Resource Management
  Interdatabase resource management enables you to manage resources for multiple databases using the same shared storage.
• About Cluster Resource Management
  Cluster resource management enables you to manage resources for multiple clusters using the same shared storage.
• About Category Resource Management
  Categories represent collections of consumer groups across all databases.
• About Consumer Groups and Resource Plans
  Oracle Exadata provides out-of-the-box consumer groups and resource plans specifically designed for data warehouses that use Oracle Exadata System Software.
• About CDB Plans and Pluggable Databases
  The container database (CDB) can have multiple workloads within multiple PDBs competing for resources.