You administer an online transaction processing (OLTP) system whose database is stored
in Automatic Storage Management (ASM) and whose disk group use normal redundancy.
One of the ASM disks goes offline, and is then dropped because it was not brought online
before DISK_REPAIR_TIME elapsed. When the disk is replaced and added back to the disk
group, the ensuing rebalance operation is too slow. Which two recommendations should
you make to speed up the rebalance operation if this type of failure happens again?
A.
Set the DISK_REPAIR_TIME disk attribute to a lower value.
B.
Increase the number of DBWR_IO_SLAVES in the ASM instance.
C.
Increase the number of ASMB processes.
D.
Increase the value of the ASM_POWER_LIMIT parameter.
E.
Specify the statement that adds the disk back to the disk group.
DE
DB
?
C: ASM_POWER_LIMIT specifies the maximum power on an Automatic Storage
Management instance for disk rebalancing. The higher the limit, the faster rebalancing will
complete. Lower values will take longer, but consume fewer processing and I/O resources.
D:
* Normally a separate process is fired up to do that rebalance. This will take a certain amount of
time. If you want it to happen faster, fire up more processes. You tell ASM it can add more
processes by increasing the rebalance power.
* ASMB
ASM Background Process
Communicates with the ASM instance, managing storage and providing statistics