在Oracle RAC架构中,涉及到ASM发现磁盘的操作有三个参数是需要注意的:
ASM_DISKGROUPS,指定了ASM磁盘组:
ASM_DISKGROUPS = diskgroup [, diskgroup ] …
http://docs.oracle.com/database/121/REFRN/GUID-1C075796-76CC-43AD-BC06-A9B6BD9DCC2F.htm#REFRN10247

eg:

ASM_DISKSTRING,指定ASM可用的磁盘的位置:
ASM_DISKSTRING = discovery_string [, discovery_string ] …
http://docs.oracle.com/database/121/REFRN/GUID-BF533461-03CF-42B0-9D9E-1E0AA1190826.htm#REFRN10248

eg:

ASM_POWER_LIMIT,ASM对新加入的磁盘的Re-Balance的速度(0~11,0表示禁用,11表示:启用,且最快速的再平衡)
http://docs.oracle.com/database/121/REFRN/GUID-2190919A-C9C5-4072-8EE9-74D7E75302A0.htm#REFRN10246

eg:

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Done。

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