A common error. It happens when the datadomain host or mtree is unreachable.
For the first situation, contact the OS/Network administrator. Is can be a firewall limitation, DNS miss (if using DNS hosting) or, in some cases, networks physically unreachable.
For the second case, try to [re]send user/pass to access datadomain:
Starting backup at 24-OCT-15 using target database control file instead of recovery catalog allocated channel: ORA_SBT_TAPE_1 channel ORA_SBT_TAPE_1: SID=191 instance=almdbdw_1 device type=SBT_TAPE channel ORA_SBT_TAPE_1: Data Domain Boost API allocated channel: ORA_SBT_TAPE_2 input datafile file number=00001 name=+DGMYDB/almdbdw/datafile/system.267.849463017 channel ORA_SBT_TAPE_1: starting piece 1 at 22-JUL-15 RMAN-00571: =========================================================== RMAN-00569: =============== ERROR MESSAGE STACK FOLLOWS =============== RMAN-00571: =========================================================== RMAN-03009: failure of backup command on ORA_SBT_TAPE_1 channel at 10/24/2015 10:03:50 ORA-19506: failed to create sequential file, name="a4qcme1l_1_1", parms="" ORA-27028: skgfqcre: sbtbackup returned error ORA-19511: Error received from media manager layer, error text: sbtbackup: dd_rman_connect_to_backup_host failed channel ORA_SBT_TAPE_1 disabled, job failed on it will be run on another channel
Sending user/password to acess data domain as follow and, after that, re-run the your action.
RUN { ALLOCATE CHANNEL t1 TYPE SBT_TAPE PARMS 'BLKSIZE=1048576, SBT_LIBRARY=$ORACLE_HOME/lib/libddobk.so,ENV=(STORAGE_UNIT=$STORAGE_UNIT,BACKUP_HOST=$DATADOMAIN_HOST,ORACLE_HOME=$ORACLE_HOME)' FORMAT '%U-%d'; send 'set username $DDBOOST_USER password $PASSWORD servername $DATADOMAIN_HOST'; RELEASE CHANNEL t1; }
Hugs!
Matheus.
Hi,
In addition to the “send ‘set username …” command for me it was necessary to make a DDBoost disable / enable inside the Data Domain console, after that it worked successfully.
Adriano