Under which condition(s) does IORM manage Exadata cell resources?

Question

Options

• AAll the time
• BWhen there are IORM resource plans In place
• CWhen there are more than one resource group for a cell
• DWhen I/O requests start to saturate the cell
• EWhen I/O requests start to saturate the cell and there is more than one resource group defined for the cell

• A
  84% (27)
• B
  3% (1)
• C
  9% (3)
• E
  3% (1)

Explanation

The inter-database I/O allocations are defined within the software in the Exadata cell and managed by the I/O Resource Manager (IORM). The Exadata cell software ensures that inter- database I/O resources are managed and properly allocated within, and between, databases. Overall, DBRM ensures each database receives its specified amount of I/O resources and user defined SLAs are met. In essence, Exadata I/O Resource Manager has solved one of the challenges traditional storage technology does not address: creating a shared grid storage environment with the ability to balance and prioritize the work of multiple databases and users sharing the storage subsystem. Exadata I/O resource management ensures user defined SLAs are met for multiple databases sharing Exadata storage. This ensures that each database or user gets the correct share of disk bandwidth to meet business objectives.

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