Media test is failing

Hi,

A month ago, we set rman backups from OEM. It was working fine. All of a sudden it is stopped working.

Following script is working on the AIX/UNIX side.

rman target / <<EOF

RUN

{

allocate channel t1 device type sbt parms='ENV=(TDPO_OPTFILE=/c8c/product/tivoli/prodcdcs.opt)';

allocate channel t2 device type sbt parms='ENV=(TDPO_OPTFILE=/c8c/product/tivoli/prodcdcs.opt)';

backup as compressed backupset archivelog all delete all input FORMAT='%d_arch_%I_%U_%t.bkp';

crosscheck backup;

DELETE NOPROMPT EXPIRED BACKUP;

DELETE NOPROMPT OBSOLETE RECOVERY WINDOW OF 7 days;

release channel t1;