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Question 1/72
Which two are true concerning the allocation of I/O resources by the IORM within the CELLSRV process?
Correct Answer: A,E
Explanation/Reference:
Note:
* IORM Rules
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 queues.
/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.
Reference: Using IORM with Exadata
Note:
* IORM Rules
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 queues.
/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.
Reference: Using IORM with Exadata
- Question List (72q)
- Question 1: Which two are true concerning the allocation of I/O resource...
- Question 2: You must drop all celldisks on all the cells in a quarter ra...
- Question 3: Which four statements are true about Exadata Smart Flash Cac...
- Question 4: Which three are true about Exadata storage server alerts?...
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- Question 27: You are monitoring and evaluating a create index statement o...
- Question 28: You have configured a multi-rack Database Machine with two X...
- Question 29: You plan to migrate an existing production database supporti...
- Question 30: You configuring has two half racks, one with high capacity d...
- Question 31: Which three storage components are available after the stand...
- Question 32: Last weekend, an Exadata storage server flashdisk entered th...
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