ocp-v13-074

最新推荐文章于 2025-08-06 12:15:51 发布

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最新推荐文章于 2025-08-06 12:15:51 发布

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分类专栏： OCP-1Z0-053 文章标签： rman oracle ocp oracle11 数据库

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本文探讨了在ASM实例中添加或删除磁盘时，数据库性能下降的问题，并提供了两个关键活动建议来保持一致的性能：在操作过程中定义POWER选项和增加ARB进程数。

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QUESTION 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.

Correct Answer: AB

后立即添加新的磁盘或从ASM实例删除现有磁盘，你发现
数据库的性能在最初的时候就开始了，直到时间的增加或清除过程是
完成，然后逐渐变得正常。

其中2项活动将在数据库中保持一致的性能
添加或删除磁盘？

A. 在添加或删除磁盘时定义POWER选项。
B. 通过建立asm_power_limit高值增加ARB的进程数。