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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