多选题Immediately after adding a new disk to or removing an existing disk from an Automatic StorageManagement (ASM) instance, you find that the performance of the database decreases initially, until the addition or removal process is completed. Performance then gradually returns to normal levels. Which two activities could you perform to maintain a consistent performance of the database while adding or removing disks?()Aincrease the number of checkpoint processesBdefine the POWER option while adding or removing the disksCincrease the number of DBWR processes by setting up a higher value for DB_WRITER_PROCESSESDincrease the number of slave database writer processes by setting up a higher value for DBWR_IO_SLAVESEincrease the number of ASM Rebalance processes by setting up a higher value for ASM_POWER_LIMIT during the disk addition or removal process
多选题
Immediately after adding a new disk to or removing an existing disk from an Automatic StorageManagement (ASM) instance, you find that the performance of the database decreases initially, until the addition or removal process is completed. Performance then gradually returns to normal levels. Which two activities could you perform to maintain a consistent performance of the database while adding or removing disks?()
A
increase the number of checkpoint processes
B
define the POWER option while adding or removing the disks
C
increase the number of DBWR processes by setting up a higher value for DB_WRITER_PROCESSES
D
increase the number of slave database writer processes by setting up a higher value for DBWR_IO_SLAVES
E
increase the number of ASM Rebalance processes by setting up a higher value for ASM_POWER_LIMIT during the disk addition or removal process
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单选题Your database is configured on non-ASM disk storage. You need to migrate your database to ASM disk storage. Which statement is true about migrating from non-ASM disk storage to ASM disk storage?()A You can use the operating system utility to migrate from non-ASM disk storage to ASM disk storage.B You cannot perform a database backup from non-ASM disk storage to tape and then move it to ASM disk storage.C You can use the SWITCH DATABASE TO COPY Recovery Manager (RMAN) command to switch back to non-ASM disk storage if you have not deleted your original datafiles.D You cannot use Recovery Manager (RMAN) to migrate from non-ASM disk storage to ASM disk storage if you are not using RMAN for your backup and recovery strategies.
多选题Immediately after adding a new disk to or removing an existing disk from an ASM instance, you find that the performance of the database goes down initially until the time the addition or removal process is completed, and then gradually becomes normal. Which two activities would you perform to maintain a consistent performance of the database while adding or removing disks?()ADefine the POWER option while adding or removing the disksBIncrease the number of ARB processes by setting up a higher value for ASM_POWER_LIMIT.CIncrease the number of DBWR processes by setting up a higher value for DB_WRITER_PROCESSESDIncrease the number of slave database writer processes by setting up a higher value for DBWR_IO_SLAVES
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