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Oracle 11G OCP 1Z0-053 156

原创 Oracle 作者:LuiseDalian 时间:2014-08-27 08:19:59 0 删除 编辑
(156)What is the effect of increasing the value of the ASM_POWER_LIMIT parameter?

A. The number of DBWR processes increases

B. The number of ASMB processes increases

C. The number of DBWR_TO_SLAVES increases

D. The rebalancing operation in an ASM instance completes more quickly,but can result in higher I/O overhead

答案:(D)

解析:

(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.

数值大再度平衡快,不过I/O开销也大。选D)

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