Which two are true concerning the allocation of I/O resources by the IORM within the CELLSRV process?

Question

Options

• AControl File I/O is managed automatically at high priority by IORM.
• BControl File I/O is considered part of the SYSTEM resource Consume group by IORM.
• CLog Writer I/O to the Smart Flash Log is considered part of the SYSTEM resource consumer group
• DLog Writer I/O to the Smart Flash Log is managed automatically at high priority by IORM.
• EDatabase Writer I/O is managed automatically at normal priority by IORM.
• FDatabase Writer I/O is considered part of the SYSTEM resource consumer group by IORM.

• A
  81% (35)
• B
  2% (1)
• C
  9% (4)
• D
  2% (1)
• F
  5% (2)

Explanation

IORM is only "engaged" when needed. / (A) Redo and control file writes always take precedence. / (E) DBWR (database writer) writes are scheduled at the same priority as user IO. / IORM does not intervene if there is only one active consumer group on one database. / Any disk allocation that is not fully utilized is made available to other workloads in relation to the configured resource plans. / Background IO is scheduled based on their priority relative to user IO. / For each cell disk, each database accessing the cell has one IO queue per consumer group and three background / Background IO queues are mapped to "high", "medium", and "low" priority requests with different IO types mapped to each queue. / If no intradatabase plan is set, all non-background IO requests are grouped into a single consumer group called OTHER_GROUPS.

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