ASM:发现磁盘
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:
1 2 3 4 5 6 |
SQL> show parameter asm_diskgroups NAME TYPE VALUE ------------------------------------ ----------- ------------------------------ asm_diskgroups string DATA01 SQL> |
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:
1 2 3 4 5 6 |
SQL> show parameter asm_diskstring NAME TYPE VALUE ------------------------------------ ----------- ------------------------------ asm_diskstring string SQL> |
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:
1 2 3 4 5 6 |
SQL> show parameter asm_power_limit NAME TYPE VALUE ------------------------------------ ----------- ------------------------------ asm_power_limit integer 1 SQL> |
————————————
Done。