Backing up Oracle ora-27206 error handling using Netback

Today, the colleague's database backup problems, help to view, the error message is as follows:

Channel ch01:starting piece 1 at 2015-01-12:22:06:56rman-03009:failure of Backup command on CH01 channel at 01/12/2015 2 2:11:51ora-19513:failed to identify sequential fileora-27206:requested file not found in media management Catalogcontinu ing other job steps, job failed is not being Re-runchannel ch01:starting incremental level 0 datafile backup Setchannel Ch 01:specifying DataFile (s) in Backup setincluding current control file in Backup Setchannel ch01:starting piece 1 at 2015 -01-12:22:11:52rman-03009:failure of Backup command on CH01 channel at 01/12/2015 22:12:27ora-19513:failed to identify s Equential fileora-27206:requested file not found in media management catalogcontinuing Other job steps, Job failed would n OT be re-runchannel ch01:starting incremental level 0 datafile backup Setchannel ch01:specifying datafile (s) in backup S  Etincluding current SPFILE in Backup Setchannel ch01:starting piece 1 at 2015-01-12:22:12:27rman-03009:failure of backup command on CH01 Channel At 01/12/2015 22:12:52ora-19513:failed to identify sequential fileora-27206:requested file isn't found in media managemen T catalogcontinuing other job steps, job failed won't be re-runreleased channel:ch00released channel:ch01rman-00571: ===========================================================rman-00569: =============== ERROR MESSAGE, STACK FOLLOWS = ==============rman-00571: ===========================================================rman-03009:failure of Backup command on ch00 Channel at 01/12/2015 23:23:57ora-19513:failed to identify sequential fileora-27206:requested file not f Ound in Media management catalog

Online inquiry information is as follows:

View MOS discovery [ID 558993.1] provides the cause and resolution of the error
Cause of error : RMAN Backup to tape using Veritas netbackup,the MML parameters like Nb_ora_client and Nb_ora_serv were not given in P Roper case and configuring channel in RMAN backup.
Workaround : The nb_ora_client and nb_ora_serv MML parameters is case sensitive. So-sure to give-these parameters in same case while allocating or configuring RMAN channel as it's configure in Veri Tas server.

Look at the server configuration, sure enough hostname configuration is not correct, one is the case does not match well, the second is the hostname of the number 0 is written as the letter O. Change it, observe the backup result, everything is OK

Use the target database control file instead of the channel to recover directory allocations: C1 channel c1:sid=601 device type =sbt_tape channel C1:veritas NetBackup for Oracle-release 7.1 (20110203) Start Backup In 1 March-January-15 CH C1: Starting all data files backup set Channel C1: The data file backup set in the specified backup set includes the current control file channel C1: Starting segment 1 in 1 March-January-15 channel C1: Completed segment 1 in 1 March-January-15 segment handle =1HP Skim5_1_1 Tag =tag20150113t155029 Note =API version 2.0,mms version 5.0.0.0 Channel C1: Backup set completed, elapsed time: 00:00:26 completed backup released in 1 March-January-15 Channel: C1

Backing up Oracle ora-27206 error handling using Netback