环境：
OS：OEL5.6
RAC：10.2.0.1.0
[root@rac2 ~]# crs_stat -t
Name Type Target State Host
------------------------------------------------------------
ora....B1.inst application ONLINE ONLINE rac1
ora....B2.inst application ONLINE OFFLINE
ora.RACDB.db application ONLINE ONLINE rac2
ora....SM1.asm application ONLINE ONLINE rac1
ora....C1.lsnr application ONLINE ONLINE rac1
ora.rac1.gsd application ONLINE ONLINE rac1
ora.rac1.ons application ONLINE ONLINE rac1
ora.rac1.vip application ONLINE ONLINE rac1
ora....SM2.asm application ONLINE ONLINE rac2
ora....C2.lsnr application ONLINE ONLINE rac2
ora.rac2.gsd application ONLINE ONLINE rac2
ora.rac2.ons application ONLINE ONLINE rac2
ora.rac2.vip application ONLINE ONLINE rac2
rac的第二个节点实例无法启动
尝试手动启动
[oracle@rac2 ~]$ export ORACLE_SID=RACDB2
[oracle@rac2 ~]$ sqlplus / as sysdba
SQL*Plus: Release 10.2.0.1.0 - Production on Thu Aug 21 14:34:44 2014
Copyright (c) 1982, 2005, Oracle. All rights reserved.
Connected to an idle instance.
SQL> startup
ORA-01078: failure in processing system parameters
ORA-01565: error in identifying file '+DATA/RACDB/spfileRACDB.ora'
ORA-17503: ksfdopn:2 Failed to open file +DATA/RACDB/spfileRACDB.ora
ORA-15056: additional error message
ORA-17503: ksfdopn:DGOpenFile05 Failed to open file +DATA/racdb/spfileracdb.ora
ORA-17503: ksfdopn:2 Failed to open file +DATA/racdb/spfileracdb.ora
ORA-15001: diskgroup "DATA" does not exist or is not mounted
ORA-06512: at line 4
显示diskgroup没有mount
那么去ASM下查看diskgroup的状态，并尝试mount
[oracle@rac2 ~]$ export ORACLE_SID=+ASM2
[oracle@rac2 ~]$ sqlplus / as sysdba
SQL*Plus: Release 10.2.0.1.0 - Production on Thu Aug 21 14:41:59 2014
Copyright (c) 1982, 2005, Oracle. All rights reserved.
Connected to:
Oracle Database 10g Enterprise Edition Release 10.2.0.1.0 - Production
With the Partitioning, Real Application Clusters, OLAP and Data Mining options
SQL> desc v$asm_diskgroup;
Name Null Type
----------------------------------------- -------- ----------------------------
GROUP_NUMBER NUMBER
NAME VARCHAR2(30)
SECTOR_SIZE NUMBER
BLOCK_SIZE NUMBER
ALLOCATION_UNIT_SIZE NUMBER
STATE VARCHAR2(11)
TYPE VARCHAR2(6)
TOTAL_MB NUMBER
FREE_MB NUMBER
REQUIRED_MIRROR_FREE_MB NUMBER
USABLE_FILE_MB NUMBER
OFFLINE_DISKS NUMBER
UNBALANCED VARCHAR2(1)
COMPATIBILITY VARCHAR2(60)
DATABASE_COMPATIBILITY VARCHAR2(60)
SQL> select NAME,STATE from v$asm_diskgroup;
NAME STATE
------------------------------ -----------
FRA DISMOUNTED
DATA DISMOUNTED
SQL> alter diskgroup DATA mount;
alter diskgroup DATA mount
*
ERROR at line 1:
ORA-00600: internal error code, arguments: [kfgFinalize_2], [], [], [], [], [],
[], []
报了ORA-600: [kfgFinalize_2]
上网查证之后：
ASM异常崩溃后，可能会导致ASM实例第一次重启出现异常，报ORA-600: [kfgFinalize_2]
最终的解决方法就是停止所有节点上的ASM，重启即可。