Hi,

when EBU invokes my Agent OBA to backup online a database,  the following
error occurs:

Any idea ?

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Oracle7 Enterprise Backup Utility: Release 2.2.0.3.0 - Production on Mon
Oracle7 Enterprise Backup Utility: Release 2.2.0.3.0 - Production on Mon
Mar 08 11:51:34 1999

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


System Name: Windows NT
Node Name:   frpard099pdc
Release:     4.
Version:     101.
Machine:     586
Tape Management Software: Release 2.2.2.2
Tape API: Release 1.1

BACKUP job started with pid=53 on 03/08/1999 11:51:35

  Starting parsing of command script "D:\SysAppl\Scripts\bkpADSM.txt"
        backup online
        db_name = "ADSM"
        tablespace = "TBS1"
        log="D:\SYSAPPL\ADSM\LOG\bkpADSM.log"
        trace="D:\SYSAPPL\ADSM\LOG\bkpADSM.trc"
  Ending parsing of command script

  Starting Catalog Database verification
    Catalog Database verified
  Ending Catalog Database verification

  Starting Instance Manager verification
    Previous Instance Manager (BRD, pid=270) was terminated
    Instance Manager not running, starting a new one
    New Instance Manager (brd) process started with pid = 256
  Ending Instance Manager verification


  Starting Target Database state verification
    Connecting to Target Database
          ORACLE_SID: ebu
         ORACLE_HOME: D:\SYSAPPL\ORANT
              DBNAME: ADSM
            Username: sys
      Connect String: ADSM

    Target database state OK
  Ending Target Database state verification

  Database Backup job 23 started on 08-MAR-99 11:51
    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:
      Saving current control file "D:\SYSAPPL\ORANT\DBDATA\CTL1ADSM.ORA"
        as backup control file
"D:\SYSAPPL\ORANT\DATABASE\CTL1ADSM.ORA.00023"
      Datafile "D:\SYSAPPL\ORANT\TBS1.ORA"
    Ending Database job building

    Starting backup to tape
      Number of parallel I/O streams: 1
                   Oracle block size: 2048 bytes
              Disk input/output size: 32768 bytes
               Maximum tape I/O size: 65536 bytes
          Buffer size per I/O stream: 262144 bytes
      Issuing Statement: ALTER TABLESPACE "TBS1" BEGIN BACKUP;
      Statement processed.
 =========================================================================
=====
      Starting BFS "39920890306" on 08-MAR-99 11:51 (20.002 MB)
        "D:\SYSAPPL\ORANT\TBS1.ORA" for 20.002 MB
EBU-3516: Operating System error while peeking at a message
  on 08-MAR-99 11:52 [ 53 : brsmrecv ]
EBU-503: Additional Operating System information, error 10054: Unknown
error
  on 08-MAR-99 11:52 [ 53 : brsmrecv ]
      Issuing Statement: ALTER TABLESPACE "TBS1" END BACKUP;
      Statement processed.
      BFS in progress "39920890306" cancelled on 08-MAR-99 11:52

EBU-3515: Operating System error while writing to a connection
  on 08-MAR-99 11:52 [ 53 : brsmsend ]
EBU-503: Additional Operating System information, error 10054: Unknown
error
  on 08-MAR-99 11:52 [ 53 : brsmsend ]

    Ending backup to tape

    This backup spawns archive sequence numbers 197 to 197
    This backup comprises SCN 6975 to 6988
EBU-2001: Job 23 failed due to Operating System error
  on 08-MAR-99 11:52 [ 53 : brcdodbfil ]

  Database Backup job 23 FAILED on 08-MAR-99 11:52

BACKUP job FAILED on 08-MAR-99 11:52