RMAN Troubleshooting

                    Troubleshooting RMAN

Run the following command to find if RMAN sessions exist in the database instance (format the output for readability):

SELECT     p.SPID, 
    s.EVENT, 
    s.SECONDS_IN_WAIT AS SEC_WAIT, 
           sw.STATE, 
    s.CLIENT_INFO
FROM       V$SESSION_WAIT sw, 
    V$SESSION s, 
    V$PROCESS p
WHERE      sw.EVENT LIKE '?ckup%'
AND        s.SID=sw.SID
AND        s.PADDR=p.ADDR;

If the sessions are "WAITING" for resources, then kill the sessions using OS command "kill -9" at OS level (prompt). 

Some platforms include a command-line utility called orakill that enables you to terminate a specific thread. From a command prompt, run the following command, where sid identifies the database instance to target, and the thread_id is the SPID value from the query. 

orakill sid thread_id

And restart the backup process.