RMAN-00571: ===========================================================
RMAN-00569: =============== ERROR MESSAGE STACK FOLLOWS ===============
RMAN-00571: ===========================================================
RMAN-03009: failure of backup command on t1 channel at 12/04/2017 06:01:10
ORA-19506: failed to create sequential file, name="PEHAN_eesl8jl3_1_1_arch", parms=""
ORA-27028: skgfqcre: sbtbackup returned error
ORA-19511: Error received from media manager layer, error text:
ANS1017E (RC-50) Session rejected: TCP/IP connection failure.
Solution:
In my case TSM(Tivoli Storage Manager) died due to paging space. After started it again by Server responsible people it worked fine. If you have such problem check with server responsible people who are managing TSM.
Error in dsmerror.log file
$ cat /usr/tivoli/tsm/client/oracle/bin64/dsmerror_prdb_ora.log
12/04/17 06:10:08 ANS5216E Could not establish a TCP/IP connection with address 'TSMPROD.XYZ.SE:1500'. The TCP/IP error is 'A remote host refused an attempted connect operation.' (errno = 79).
12/04/17 06:10:08 ANS9201W LAN-free path failed.
12/04/17 06:10:08 ANS5216E Could not establish a TCP/IP connection with address 'TSMPROD.XYZ.SE:1500'. The TCP/IP error is 'A remote host refused an attempted connect operation.' (errno = 79).
12/04/17 06:10:08 ANS9020E Could not establish a session with a TSM server or client agent. The TSM return code is -50.
12/04/17 06:10:09 ANS5216E Could not establish a TCP/IP connection with address 'TSMPROD.XYZ.SE:1500'. The TCP/IP error is 'A remote host refused an attempted connect operation.' (errno = 79).
12/04/17 06:10:09 ANS9201W LAN-free path failed.
12/04/17 06:10:09 ANS5216E Could not establish a TCP/IP connection with address 'TSMPROD.XYZ.SE:1500'. The TCP/IP error is 'A remote host refused an attempted connect operation.' (errno = 79).
12/04/17 06:10:09 ANS9020E Could not establish a session with a TSM server or client agent. The TSM return code is -50.
12/04/17 06:10:09 ANS5216E Could not establish a TCP/IP connection with address 'TSMPROD.XYZ.SE:1500'. The TCP/IP error is 'A remote host refused an attempted connect operation.' (errno = 79).
12/04/17 06:10:09 ANS9201W LAN-free path failed.
12/04/17 06:10:09 ANS5216E Could not establish a TCP/IP connection with address 'TSMPROD.XYZ.SE:1500'. The TCP/IP error is 'A remote host refused an attempted connect operation.' (errno = 79).
12/04/17 06:10:09 ANS9020E Could not establish a session with a TSM server or client agent. The TSM return code is -50.
12/04/17 06:10:10 ANS5216E Could not establish a TCP/IP connection with address 'TSMPROD.XYZ.SE:1500'. The TCP/IP error is 'A remote host refused an attempted connect operation.' (errno = 79).
12/04/17 06:10:10 ANS9201W LAN-free path failed.
.
.
.
.