top of page
Writer's pictureHanh Nguyen

ORA-12528: TNS:listener: all appropriate instances are blocking new connections

There are 2 options to solve this problem

Option 1

Start rman from Auxiliary environment.

So you can connect to the auxiliary instance using OS authentication (as /) , then you need to  use sqlnet connection for target database.

For example make below connection in RMAN from auxiliary database server

E:>rman target sys/sys@original auxiliary /

Recovery Manager: Release 10.2.0.1.0 – Production on Thu Mar 15 23:57:08 2007

Copyright (c) 1982, 2005, Oracle. All rights reserved.

connected to target database: ORIGINAL (DBID=1451288337) connected to auxiliary database: DUPLICATE (not mounted)

Option 2

Create a static entry for the auxiliary database in the listener.ora file of the auxiliary database Oracle_home and restart the listener. For example

Listener.ora ————-

SID_LIST_LISTENER = (SID_LIST = (SID_DESC = (GLOBAL_DBNAME = SAIRAM) (ORACLE_HOME = G:oracleproduct10.2.0db_1) (SID_NAME = SAIRAM) ) )

Or

Use the Oracle10G feature ( specify (UR=A) in connect data ) Make below entry in the tnsnames.ora file of the auxiliary database Oracle_home

tnsnames.ora ————

SAIRAM = (DESCRIPTION = (ADDRESS = (PROTOCOL = TCP)(HOST = apadhi-idc)(PORT = 1521)) (CONNECT_DATA = (SERVER = DEDICATED) (SERVICE_NAME = SAIRAM)(UR=A) ) )

0 views0 comments

Recent Posts

See All

Comments


bottom of page