使用root创建的asm，oracle dbca无法创建数据库：报错如下：

[oracle@db2 ~]$cat /oracle/app/oracle/base/cfgtoollogs/dbca/db1.log
Could not find ASM configured under /oracle/app/grid/11.2/gi. Use ASMCA to configure ASM.

查看集群资源ora.asm无法启动，但是可以从grid，sqlplus / as sysasm直接startup

crs_stat -t

使用grid重建ora.asm，注意使用grid用户添加并启动[不要使用root]

su - grid
srvctl add asm -h
srvctl remove asm
srvctl add asm -l LISTENER -p ‘/oracle/app/grid/11.2/gi/dbs/spfile+asm.ora’ -d ‘/dev/raw/raw*’
srvctl start asm -h

使用 ASM已经起来了

srvctl start asm
srvctl enable asm

或者先创建再修改指定两个参数的值 ASM_DISKSTRING

srvctl add asm
crsctl modify resource “ora.asm” -attr “AUTO_START=1”
srvctl modify asm -h
srvctl modify asm -d ‘/dev/raw/raw*’
srvctl modify asm -p ‘/oracle/app/grid/11.2/gi/dbs/spfile+ASM.ora’;

使用grid重新创建ora.asm， 已经能识别，提示NOT MOUNT，MOUNT之后已经能使用了

DiskGroup “DATA” does not exist or not mounted.

[oracle@db2 ~]$dbca -silent -createDatabase -templateName General_Purpose.dbc -gdbname db -sid db1 -sysPassword oracle -systemPassword oracle -asmsnmpPassword oracle  -storageType ASM  -datafileDestination '+DATA/' -recoveryAreaDestination '+DATA/' -redoLogFileSize 50 -diskGroupName 'DATA' -responseFile NO_VALUE -characterset AL32UTF8 -nationalCharacterSet AL16UTF16 -sampleSchema false -automaticMemoryManagement true -totalMemory 1800
Copying database files
1% complete
3% complete
10% complete
17% complete
24% complete
31% complete
35% complete
Creating and starting Oracle instance
37% complete
42% complete
47% complete
52% complete
53% complete
56% complete
58% complete
Registering database with Oracle Restart
64% complete
Completing Database Creation
68% complete
71% complete
75% complete
85% complete
96% complete
100% complete
Look at the log file "/oracle/app/oracle/base/cfgtoollogs/dbca/db/db.log" for further details.
[oracle@db2 ~]$