Also, look for the dsierror.log file.
It sometimes has more understandable error messages.

> ----------
> From:         Andrew Raibeck[SMTP:storman AT us.ibm DOT com]
> Sent:         Wednesday, April 15, 1998 12:07 PM
> To:   ADSM-L AT vm.marist DOT edu
> Subject:      Re: FW: EBU Hot Backup Error
>
> I am not familiar with the EBU message layout (look up the EBU-503 message
> code
> to see what the error codes refer to) , but if that 137 is an ADSM API
> return
> code, then it means there was an authentication failure on your ADSM
> server.
> You can confirm this by checking the ADSM server activity log from the
> same
> timeframe as the error occurred; it should show an authentication error.
>
>
>
> Andy Raibeck
> IBM Storage Systems Division
> ADSM Client Development
> e-mail: storman AT us.ibm DOT com
>
>
>  ADSM-L AT VM.MARIST DOT EDU
>  04/15/98 09:00 AM
> Please respond to ADSM-L AT VM.MARIST DOT EDU
>
> To: ADSM-L AT VM.MARIST DOT EDU
> cc:
> Subject: FW: EBU Hot Backup Error
>
> >Do anyone know why I am getting this error message "Error calling sbtinit
> for
> tape management software"?  I have been backing up daily without
> problems.  Below is my EBU log file.
>
> Thanks,
>
> Larry
>
>   ================================================================
>
>
> >Oracle7 Enterprise Backup Utility: Release 2.2.0.5.0 - Production on Wed
> Apr
> >15 08:08:38 1998
> >
> >Copyright (c) Oracle Corporation 1979, 1996.  All rights reserved.
> >
> >CORE Version 3.5.4.0.0 - Production
> >NLSRTL Version 3.2.4.0.0 - Production
> >
> >
> >ORACLE_HOME = /iocfdw01/apps/oracle
> >System name:   AIX
> >Node name:     iocfdw01
> >Release:       3
> >Version:       4
> >Machine:       000911424C00
> >Error calling sbtinit for tape management software
> >
> >
> >BACKUP job started with pid=24962 on 04/15/1998 08:08:38
> >
> >  Starting parsing of command script "online_backup.ksh"
> >        backup online database
> >        db_name = "P008"
> >        log = "/iocfdw01/apps/oracle/scripts/online_backup.log"
> >  Ending parsing of command script
> >
> >
> >  Starting Catalog Database verification
> >    Catalog Database verified
> >  Ending Catalog Database verification
> >
> >
> >  Starting Instance Manager verification
> >    Found Instance Manager (brd) process running with pid = 16112
> >  Ending Instance Manager verification
> >
> >
> >  Starting Target Database state verification
> >    Connecting to Target Database
> >          ORACLE_SID: P008
> >         ORACLE_HOME: /iocfdw01/apps/oracle
> >              DBNAME: P008
> >            Username: internal
> >
> >    Target database state OK
> >  Ending Target Database state verification
> >
> >
> >  Database Backup job 67 started on 15-APR-98 08:08
> >
> >    Starting Database configuration verification
> >
> >
> >      No registration update is needed
> >      Target Database information is up to date in catalog
> >
> >    Ending Database configuration verification
> >
> >
> >    Starting Database job building, involved files are:
> >
> >      Parameter file "/iocfdw01/apps/oracle/dbs/configP008.ora"
> >      Parameter file "/iocfdw01/apps/oracle/dbs/initP008.ora"
> >
> >      Saving current control file
> >"/iocfdw01/ora00/oradata/P008/control01.ctl"
> >        as backup control file
> >"/iocfdw01/apps/oracle/dbs/control01.ctl.00067"
> >
> >      Datafile "/iocfdw01/ora00/oradata/P008/system01.dbf"
> >      Datafile "/iocfdw01/ora00/oradata/P008/rbs01.dbf"
> >      Datafile "/iocfdw01/ora00/oradata/P008/rbs02.dbf"
> >      Datafile "/iocfdw01/ora00/oradata/P008/temp01.dbf"
> >      Datafile "/iocfdw01/ora00/oradata/P008/temp02.dbf"
> >      Datafile "/iocfdw01/ora00/oradata/P008/tools01.dbf"
> >      Datafile "/iocfdw01/ora00/oradata/P008/users01.dbf"
> >      Datafile "/iocfdw01/ora03/oradata/P008/fwapt001a.dbf"
> >      Datafile "/iocfdw01/ora04/oradata/P008/fwapt002a.dbf"
> >      Datafile "/iocfdw01/ora05/oradata/P008/fwapt003a.dbf"
> >
> >    Ending Database job building
> >
> >
> >    Starting backup to tape
> >
> >      Number of parallel I/O streams: 1
> >                   Oracle block size: 4096 bytes
> >              Disk input/output size: 65536 bytes
> >               Maximum tape I/O size: 131072 bytes
> >          Buffer size per I/O stream: 524288 bytes
> >EBU-7111: Sbtinit: System error
> >  on 04/15/1998 08:08:41 [ 24538 : britcon ]
> >EBU-503: Additional Operating System information, error 137: Error 137
> >occurred.
> >  on 04/15/1998 08:08:41 [ 24538 : britcon ]
> >EBU-4300: Error occured while initializing Media Management Layer
> >  on 04/15/1998 08:08:41 [ 24538 : britcon ]
> >
> >    Ending backup to tape
> >
> >
> >  Ending backup to tape
> >
> >  This backup spawns archive sequence numbers 5493 to 5493
> >  This backup comprises SCN 11999272 to 11999272
> >EBU-2012: Job 67 failed due to tape management error
> >  on 15-APR-98 08:08 [ 24962 : brcdodbfil ]
> >
> >Database Backup job 67 FAILED on 15-APR-98 08:08
> >
> >  BACKUP job FAILED on 15-APR-98 08:08
> >
> >
>
>
>
>