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解决方法如下，先利用grid用户重启has服务，
[grid@dga01 ~]$ crsctl stop has
CRS-2791: Starting shutdown of Oracle High Availability Services-managed resources on 'dga01'
CRS-2673: Attempting to stop 'ora.LISTENER.lsnr' on 'dga01'
CRS-2673: Attempting to stop 'ora.DATA.dg' on 'dga01'
CRS-2673: Attempting to stop 'ora.OCR.dg' on 'dga01'
CRS-2677: Stop of 'ora.DATA.dg' on 'dga01' succeeded
CRS-2677: Stop of 'ora.LISTENER.lsnr' on 'dga01' succeeded
CRS-2677: Stop of 'ora.OCR.dg' on 'dga01' succeeded
CRS-2673: Attempting to stop 'ora.asm' on 'dga01'
CRS-2677: Stop of 'ora.asm' on 'dga01' succeeded
CRS-2673: Attempting to stop 'ora.cssd' on 'dga01'
CRS-2677: Stop of 'ora.cssd' on 'dga01' succeeded
CRS-2677: Stop of 'ora.evmd' on 'dga01' succeeded
CRS-2793: Shutdown of Oracle High Availability Services-managed resources on 'dga01' has completed
CRS-4133: Oracle High Availability Services has been stopped.
[grid@dga01 ~]$ crsctl start has
CRS-4123: Oracle High Availability Services has been started.
[root@dga01 ~]# su - oracle
用 srvctl 重新注册 database
[oracle@dga01 ~]$ srvctl add database -d orcl -o /u01/app/oracle/product/11.2/db_1
执行以上命令完成后 dbca正常