Oracle RAC 实例不能启动解决方案
[oracle@rac1 bin]$ crs_stat -t
Name Type Target State Host
------------------------------------------------------------
ora.orcl.db application ONLINE OFFLINE
ora....oltp.cs application ONLINE OFFLINE
ora....cl1.srv application ONLINE OFFLINE
ora....cl2.srv application ONLINE OFFLINE
ora....l1.inst application ONLINE OFFLINE
ora....l2.inst application ONLINE OFFLINE
ora....SM2.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....SM1.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
二. 定位问题
tail -f /rac/app/oracle/admin/+ASM/bdump/alert_+ASM1.log
连上ASM实例后，查看磁盘组状态，为DISMOUNTED, 应该就是这个原因导致实例无法启动了。 手动启动磁盘组后，在用crs_start 命令启动相关进程(记住 不能用crs_stop -all 或者 crs_start -all)
export ORACLE_SID=+ASM2
[oracle@rac2 racg]$ sqlplus / as sysdba
SQL*Plus: Release 10.2.0.1.0 - Production on Wed Sep 15 03:53:18 2010
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> select name,state from v$asm_diskgroup;
NAME STATE
------------------------------ -----------
DATA DISMOUNTED
FLASH_RECOVERY_AREA DISMOUNTED
SQL> alter diskgroup DATA mount;
Diskgroup altered.
SQL> alter diskgroup FLASH_RECOVERY_AREA mount;
Diskgroup altered.
SQL> select name,state from v$asm_diskgroup;
NAME STATE
------------------------------ -----------
DATA MOUNTED
FLASH_RECOVERY_AREA MOUNTED
SQL>
开机自动挂载
困扰我一周的问题了，
oracle RAC 每次启动后 库实例启动不了，搜了很多文章终于解决了
/rac/app/oracle/product/10.2.0/db_1/dbs/ init+ASM1.ora
增加asm_diskgroups='×××' ×××名字为select name,state from v$asm_diskgroup的名字;
asm_diskgroups=‘ORCL:VOL*’ 或者asm_diskgroups=‘ORCL:VOL1’