ORA -12514 or ORA -12528 - While Attempting Cold Backup from RMAN or EM Grid Console
Last updated on JUNE 21, 2017
Applies to:Oracle Net Services - Version 10.2.0.1.0 to 184.108.40.206 [Release 10.2 to 11.2]
Information in this document applies to any platform.
* You have connected to the instance remotely via listener. While performing shutdown and the startup from the same session.
* You are trying to take cold backup from RMAN or EM Grid console, which involves shutdown and startup of the instance.
You may get the below errors:
ORA-12514 : TNS:listener does not currently know of service requested in connect descriptor
ORA-12528 : TNS:listener: all appropriate instances are blocking new connections
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