DBCA Reports ORA-00304, During ASM Instance Creation On RAC.

(Doc ID 955204.1)

Last updated on MARCH 22, 2018

Applies to:

Oracle Server - Enterprise Edition - Version: to - Release: 11.1 to 11.1
Information in this document applies to any platform.


1) Unable to connect to the +ASM1 instance since it shows:

SQL> connect / as sysdba
Connected to an idle instance.


3) CRS services are up and running:

HA Resource                                   Target     State             
-----------                                   ------     -----             
ora.ugatcomp07.ASM1.asm                       ONLINE     ONLINE on ugatcomp07
ora.ugatcomp07.LISTENER_UGATCOMP07.lsnr       ONLINE     ONLINE on ugatcomp07
ora.ugatcomp07.gsd                            ONLINE     ONLINE on ugatcomp07
ora.ugatcomp07.ons                            ONLINE     ONLINE on ugatcomp07
ora.ugatcomp07.vip                            ONLINE     ONLINE on ugatcomp07
ora.ugatcomp08.ASM2.asm                       ONLINE     ONLINE on ugatcomp08
ora.ugatcomp08.LISTENER_UGATCOMP08.lsnr       ONLINE     ONLINE on ugatcomp08
ora.ugatcomp08.gsd                            ONLINE     ONLINE on ugatcomp08
ora.ugatcomp08.ons                            ONLINE     ONLINE on ugatcomp08
ora.ugatcomp08.vip                            ONLINE     ONLINE on ugatcomp08 

3) But the affected ASM instance (+ASM1) alert.log reports the next error (which does not make sense):

ORA-00304: requested INSTANCE_NUMBER is busy


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