SQL> startup nomount ORA-01012: not logged on SQL> startup ORA-01012: not logged onSQL> shutdown immediate ORA-24324: service handle not initialized ORA-24323: value not allowed ORA-01089: immediate shutdown in progress - no operations are permitted查看alert日志：NOTE: Instance updated compatible.asm to 11.2.0.0.0 for grp 3 SUCCESS: diskgroup SYS_DG was mounted SUCCESS: ALTER DISKGROUP ALL MOUNT NOTE: diskgroup resource ora.DATA_DG.dg is online NOTE: diskgroup resource ora.DG_FRA.dg is online NOTE: diskgroup resource ora.SYS_DG.dg is online Sat Feb 22 19:38:59 2014 Shutting down instance （immediate） Shutting down instance: further logons disabled Stopping background process MMNL Stopping background process MMON License high water mark = 4 Sat Feb 22 19:44:02 2014 SHUTDOWN: Active processes prevent shutdown operation Sat Feb 22 19:49:04 2014 SHUTDOWN: Active processes prevent shutdown operation [grid@myrac1 trace]$ date Sat Feb 22 21:07:46 PST 2014 [grid@myrac1 trace]$ tail -f alert_+ASM.log Sat Feb 22 19:38:59 2014 Shutting down instance （immediate） Shutting down instance: further logons disabled Stopping background process MMNL Stopping background process MMON License high water mark = 4 Sat Feb 22 19:44:02 2014 SHUTDOWN: Active processes prevent shutdown operation Sat Feb 22 19:49:04 2014 SHUTDOWN: Active processes prevent shutdown operation Sat Feb 22 21:09:49 2014 License high water mark = 4从日志可以发现是实例出现异常，导致无法启动shutdown，尝试强行停止SQL> shutdown abort ASM instance shutdown SQL> startup ASM instance startedTotal System Global Area 284565504 bytes Fixed Size 1336036 bytes Variable Size 258063644 bytes ASM Cache 25165824 bytes ASM diskgroups mounted更多Oracle相关信息见Oracle 专题页面 http://www.linuxidc.com/topicnews.aspx？tid=12本文永久更新链接地址
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