oracle ASM中ASM_POWER_LIMIT参数
ASM_POWER_LIMIT该初始化参数用于指定ASM例程平衡磁盘所用的最大权值，其数值范围为0~11，默认值为1。该初始化参数是动态参数，可以使用ALTERSESSION或ALTERSYSTEM命令进行修改。示例如下：
SQL>ALTERSESSIONSET Asm_power_limit=2;
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属性说明
参数类型Integer
默认值1
允许动态修改ALTER SESSION, ALTER SYSTEM
取值范围0 ~ 11
RAC相关多个实例可以有不同的值
Note:This Parameter May Only Be Specified In An Automatic Storage Management Instance.
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.
If The POWER Clause Of A Rebalance Operation Is Not Specified, Then The Default Power Will Be The Value Of ASM_POWER_LIMIT
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