oracle 11gR2 rac grid和oracle所属的组信息

oracle 11gR2开始,安装grid集群和oracle软件分开两个用户安装
grid用户单独安装集群,比如包括asm实例,监听资源,节点资源等
oracle用户就只安装oracle代码
grid用户下面新增了三个组asmadmin,asmdba,asmoper
下面列出具体每个用户和组之间对应的关系

[td=187][align=RIGHT]用户组[td=216][align=RIGHT]所属该组的用户[td=270][align=RIGHT]用户组描述[td=102]
[td=187][align=RIGHT]oinstall[td=216][align=RIGHT]grid, oracle[td=270][align=RIGHT]Oracle Inventory and Software Owner[td=102]
[td=187][align=RIGHT]dba[td=216][align=RIGHT]grid, oracle[td=270][align=RIGHT]Database Administrator[td=102]
[td=187][align=RIGHT]asmadmin[td=216][align=RIGHT]grid[td=270][align=RIGHT]Oracle Automatic Storage Management Group[td=102]
[td=187][align=RIGHT]asmdba[td=216][align=RIGHT]grid, oracle[td=270][align=RIGHT]ASM Database Administrator Group[td=102]
[td=187][align=RIGHT]asmoper[td=216][align=RIGHT]grid[td=270][align=RIGHT]ASM Operator Group[td=102]
[td=187][align=RIGHT]oper[td=216][align=RIGHT]oracle[td=270][align=RIGHT]Database Operator[td=102]

如果对oracle用户没赋予asmdba组的话,则会导致oracle用户认不到diskgroup,启动对应节点实例失败。Thu Jul 08 18:04:18 2010
ASMB started with pid=29, OS id=21238
ORA-00210: cannot open the specified control file
ORA-00202: control file: '+TESTDG/racdb/controlfile/current.256.723833823'
ORA-17503: ksfdopn:2 Failed to open file +TESTDG/racdb/controlfile/current.256.723833823
ORA-15001: diskgroup "TESTDG" does not exist or is not mounted
ORA-15055: unable to connect to ASM instance
ORA-01031: insufficient privileges
Starting background process ASMB
通过id命令可以显示用户包含哪些组[oracle@rac1 trace]$ id
uid=502(oracle) gid=501(oinstall) groups=501(oinstall),502(dba),506(asmdba)
[oracle@rac1 trace]$