74.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? (Choose two.)
A. Define the POWER option while adding or removing the disks.
B. Increase the number of ARB processes by setting up a higher value for ASM_POWER_LIMIT.
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.
Answer: AB
立即从一个ASM实例添加新的磁盘或删除现有的磁盘后，你发现最初数据库性能下降，直到时间的增加或删除进程完成，然后逐渐变为正常。
当增加或删除磁盘时你会执行哪两个活动以保持一致的数据库的性能？
添加或删除磁盘时定义POWER选项。
通过设立一个较高的ASM_POWER_LIMIT值来增加ARB进程数。
Which two activities would you perform to maintain a consistent performance of the database while adding or removing disks? (Choose two.)
A. Define the POWER option while adding or removing the disks.
B. Increase the number of ARB processes by setting up a higher value for ASM_POWER_LIMIT.
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.
Answer: AB
立即从一个ASM实例添加新的磁盘或删除现有的磁盘后，你发现最初数据库性能下降，直到时间的增加或删除进程完成，然后逐渐变为正常。
当增加或删除磁盘时你会执行哪两个活动以保持一致的数据库的性能？
添加或删除磁盘时定义POWER选项。
通过设立一个较高的ASM_POWER_LIMIT值来增加ARB进程数。
来自 “ ITPUB博客 ” ，链接：https://blog.itpub.net/81227/viewspace-2123174/ ，如需转载，请注明出处，否则将追究法律责任。
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