SXPG_COMMAND_EXECUTE failed for BRBACKUP

My online backup has been scheduled in DB13
when its reach the backup time its showins error.

Status : Scheduled failed
JOB LOG:
30.11.2012 17:26:56 Job started
30.11.2012 17:26:56 Step 001 started (program RSDBAJOB, variant &0000000000672, user ID BASIS)
30.11.2012 17:26:56 No application server found on database host - rsh/gateway will be used
30.11.2012 17:26:56 Execute logical command BRBACKUP On host PRODORADB
30.11.2012 17:26:56 Parameters:-u / -jid ALLOG20121130172655 -c force -t online -m all -p initPDR.sap -a -c force -p initPRD
30.11.2012 17:26:56 offsite.sap -cds
30.11.2012 17:27:28 SXPG_STEP_XPG_START: is_local_host: rc = 403
30.11.2012 17:27:28 SXPG_STEP_XPG_START: host = ECCDB
30.11.2012 17:27:28 SXPG_STEP_XPG_START: is_local_r3_host: rc = 802
30.11.2012 17:27:28 SXPG_STEP_XPG_START: RFC_TCPIP_CONNECTION_OPEN: rc = 1003
30.11.2012 17:27:28 SXPG_STEP_COMMAND_START: SXPG_STEP_XPG_START returned: 1.003
30.11.2012 17:27:28 SXPG_COMMAND_EXECUTE(LONG)
30.11.2012 17:27:28 = 20121130172728
30.11.2012 17:27:28 COMMANDNAME = BRBACKUP
30.11.2012 17:27:28 ADDITIONAL_PARAMETERS =
30.11.2012 17:27:28 -u / -jid ALLOG20121130172655 -c force -t online -
30.11.2012 17:27:28 m all -p initPRD.sap -a -c force -p initIRP
30.11.2012 17:27:28 PRD.sap -cds
30.11.2012 17:27:28 LONG_PARAMS
30.11.2012 17:27:28 OPERATINGSYSTEM = ANYOS
30.11.2012 17:27:28 TARGETSYSTEM = PRODORADB
30.11.2012 17:27:28 DESTINATION
30.11.2012 17:27:28 SY-SUBRC = 1003
30.11.2012 17:27:28 SXPG_COMMAND_EXECUTE failed for BRBACKUP - Reason: program_start_error: For More Information, See SYS
30.11.2012 17:27:28 Job cancelled after system exception ERROR_MESSAGE

Solution:
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Refer to note 446172 : Note 446172 - SXPG_COMMAND_EXECUTE (program_start_error) in DB13
Note 34219 - DB13: CPIC error CM_RESOURCE_FAILURE_RETRY
Note 853610 - Configuring transaction DB13C for Oracle
http://help.sap.com/saphelp_nw70/helpdata/en/c4/3a7fbb505211d189550000e829fbbd/content.htm

The gw/remsh = rsh in rz11
SAP application server : ECCCI
Database server : ECCDB
From ECCCI I execute rsh ECCDB and it was giving error.
I activate rsh in ECCDB and execute rsh ECCDB date and it was successful.
RFC : SAPXPG_DBDEST_ECCDB was giving error
After activating rsh this rfc was successful.