DBCA Gives an ORA-12523 After Entering the Password for SYS for the ASM Instance
(Doc ID 738462.1)
Last updated on APRIL 24, 2018
Applies to:
Oracle Database Configuration Assistant - Version 10.2.0.1 to 11.1.0.6.0 [Release 10.2 to 11.1]Information in this document applies to any platform.
***Checked for relevance on 21-Jan-2011***
Symptoms
After entering the SYS password for the ASM instance under the "ASM Credentials" pop-up and clicking "OK", DBCA gives the following error via a pop-up:
"Error when connecting to ASM instance on local node: Listener
refused the connection with the following error:
ORA-12523, TNS:listener could not find instance appropriate
for the client connection
The Connection descriptor used by the client was:
(DESCRIPTION=(ADDRESS=(PROTOCOL=TCP(Host=adc1)
(Port=1549))(CONNECT_DATA=(SERVICE_NAME++ASM1)
(INSTANCE_NAME=+ASM1)(UR=A)))
refused the connection with the following error:
ORA-12523, TNS:listener could not find instance appropriate
for the client connection
The Connection descriptor used by the client was:
(DESCRIPTION=(ADDRESS=(PROTOCOL=TCP(Host=adc1)
(Port=1549))(CONNECT_DATA=(SERVICE_NAME++ASM1)
(INSTANCE_NAME=+ASM1)(UR=A)))
Cause
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