Oracle Database 12c: RAC Administration — Question 12

You must replace a failed disk that was dropped from a disk group.
You want the rebalance operation to occur with minimal performance impact.
Which two options exist to achieve this? (Choose two.)

Answer options

• A. Make sure that the ASM_POWER_LIMIT parameter is set to 1 before rebalancing the disk group.
• B. Increase the value of the DISK_REPAIR_TIME attribute for the disk group.
• C. Use the WAIT clause with the ALTER DISKGROUP command.
• D. Decrease the value of the DISK_REPAIR_TIME attribute for the disk group.
• E. Set the POWER clause to 1 in the ALTER DISKGROUP command.

Correct answer: A, B

Explanation

Option A is correct because setting the ASM_POWER_LIMIT parameter to 1 minimizes resource usage during rebalancing. Option B is also correct since increasing the DISK_REPAIR_TIME allows for a more gradual and less performance-intensive rebalance. The other options do not effectively reduce performance impact during this operation.