DG不能自动mount导致数据库不能正常启动：ORA-01157、ORA-01110、ORA-17503、ORA-15001、ORA-15001

DG不能自动mount导致数据库不能正常启动：ORA-01157、ORA-01110、ORA-17503、ORA-15001、ORA-15001

现象：

每次重启整个CRS之后，DB都不能自动开启到OPEN状态，查看alert日志报错：

SUCCESS: diskgroup UNID was mounted

Thu Nov 14 21:46:01 2013

Create Relation SWEEPERR

Setting recovery target incarnation to 1

Successful mount of redo thread 1, with mount id 2364838615

Database mounted in Exclusive Mode

Lost write protection disabled

Completed: ALTER DATABASE MOUNT

Thu Nov 14 21:46:05 2013

ALTER DATABASE OPEN MIGRATE

Errors in file /opt/app/diag/rdbms/nc/nc1/trace/nc1_dbw0_8399.trc:

ORA-01157: cannot identify/lock data file 21 - see DBWR trace file

ORA-01110: data file 21: '+INDX/nc/datafile/INDX.256.820323481'

ORA-17503: ksfdopn:2 Failed to open file +INDX/nc/datafile/INDX.256.820323481

ORA-15001: diskgroup "INDX" does not exist or is not mounted

ORA-15001: diskgroup "INDX" does not exist or is not mounted

Errors in file /opt/app/diag/rdbms/nc/nc1/trace/nc1_dbw0_8399.trc:

ORA-01157: cannot identify/lock data file 22 - see DBWR trace file

ORA-01110: data file 22: '+INDX/nc/datafile/INDX.257.820323659'

ORA-17503: ksfdopn:2 Failed to open file +INDX/nc/datafile/INDX.257.820323659

ORA-15001: diskgroup "INDX" does not exist or is not mounted

从alert日志可以看出，INDX DG的文件不能被读到，

查看发现INDX DG处于DISMOUNT状态。

分析：

ASM中创建了2个DG：UNID,INDX.每次只有UNID会被自动mount,而INDX不能被自动MOUNT。

查看asm_diskgroups参数发现只设置了UNID，这就是为什么每次INDX不会被自动MOUNT的原因了。

SQL>

SQL> show parameter asm

NAME TYPE VALUE

------------------------------------ ----------- ------------------------------

asm_diskgroups string UNID

SQL> show parameter pfile

NAME TYPE VALUE

------------------------------------ ----------- ------------------------------

spfile string

解决办法：

将INDX添加到asm_diskgroups参数中。

spfile:alter system set asm_diskgroups='UNID','INDX' scope=both;

pfile:修改pfile中asm_diskgroups参数。