Backup scheduled through DB13 not working

Question

Hello,
We are trying to schedule backup through DB13.But it got failed due to below error.Backup scheduled through DB13 was working fine last week.
Job started
Step 001 started (program RSDBAJOB, variant &0000000000174, user ID KHJS199)
Execute logical command BRARCHIVE On host ppd-ora-ga2
Parameters:-u / -jid LOG__20100927040000 -c force -p initGA2.sap -sd
External communication error at program start (see system log)
SAPXPG_START_XPG_LONG: sy-subrc ne 0
destination = SAPXPG_DBDEST_PPD-ORA-GA2
SXPG_STEP_XPG_START: execute_sapxpg: rc = 1.003
SXPG_STEP_COMMAND_START: SXPG_STEP_XPG_START returned: 1.003
SXPG_COMMAND_EXECUTE(LONG)
<timestamp> = 20101014040033
COMMANDNAME = BRARCHIVE
ADDITIONAL_PARAMETERS =
-u / -jid LOG__20100927040000 -c force -p initGA2.
sap -sd
LONG_PARAMS
OPERATINGSYSTEM = ANYOS
TARGETSYSTEM = ppd-ora-ga2
DESTINATION = SAPXPG_DBDEST_PPD-ORA-GA2
SY-SUBRC = 1003
SXPG_COMMAND_EXECUTE failed for BRARCHIVE - Reason: program_start_error: For More Information, See SYS
Job cancelled after system exception ERROR_MESSAGE
We checked the RFC connection SAPXPG_DBDEST_PPD-ORA-GA2 and it is not working.
For target host and gateway host,we have maintained their corresponding virtual host.
Gateway is already installed on the server.
Could you please help me out on this.
Thanks,
Gopi L

Answer 1

Hello,
Just to add some more information.
We have 3 servers, X(Database + CI),Y(Dialog instance),Z(Dialog Instance).
Server  X is the primary node and Y is the failover node.
Gateway is already installed on Database server and I can verify it by giving ps -aef | grep gwrd.
Thanks,
Gopi L