This is regarding the oracle dataguard setup b'n two oracle RAC datacenters:
I have two RAC setups, one is single node RAC and the other two node RAC and I need to create the dataguard setup from single node RAC to two node RAC. The communication between the two datacenters is through Network TCP/IP.
While duplicating the primary database(APPN) to create standby database(AUX), following error has been thrown:
Starting backup at 09-OCT-12
using channel ORA_DISK_1
channel ORA_DISK_1: starting datafile copy
copying standby control file
RMAN-00569: =============== ERROR MESSAGE STACK FOLLOWS ===============
RMAN-03002: failure of Duplicate Db command at 10/09/2012 03:09:03
RMAN-05501: aborting duplication of target database
RMAN-03015: error occurred in stored script Memory Script
RMAN-03009: failure of backup command on ORA_DISK_1 channel at 10/09/2012 03:09:03
ORA-17628: Oracle error 19505 returned by remote Oracle server
When i checked the oracle alert log, it says unable to access ASM instance. So i need help how to establish the connection between ASM instances between two RAC datacenters.
also if this is a newly created cluster where you used role separation and you never created a DB yet, make sure that you can connect as sysdba to the ASM instance (from the DB Home) as the oracle user creating the DB.