Oracle RMAN Backup failed daily

[rahulpawar]

I am facing daily problem during oracle rman backup.

Please find the log

channel d1: starting piece 1 at 21-FEB-10
released channel: d1
RMAN-00571: ===========================================================
RMAN-00569: =============== ERROR MESSAGE STACK FOLLOWS ===============
RMAN-00571: ===========================================================
RMAN-03002: failure of backup command at 02/21/2010 07:00:56
ORA-19502: write error on file "3rl6i1j7_1_1", blockno 1 (blocksize=512)
ORA-27030: skgfwrt: sbtwrite2 returned error
ORA-19511: Error received from media manager layer, error text:
ANS1235E (RC-72) An unknown system error has occurred from which TSM cannot
recover.

please help me

 

[GregE]

Earlier in your rman log, is there something else showing anything about this error that occurs later? Post that if you have it.

 

[Harry_Redl]

Hi,

is it LANFree backup?
RC -72 - it is network related. Check your logs for timed out/terminated session messages and increase your commtimeout, idletimeout and resourcetimeout values (start with idletimeout and resourcetimeout at 120, commtimeout at 600 - we had to go even higher!).
Do not forget to set these parameters on both sides (TSM server AND Storage Agent)
Harry