NetBackup adn Oracle 9i on HP failure

One hit on this seemed to indicate it may be a problem with NetBackup. Someone know where one would dig next. NetBackup folks not positive what it message is trying to tell them or where to look.  

Does NetBackup maintain a staging area, and if so, where is that?  

Anyone, "Been there, done that, easy fix.....?"  

Thanks.  

channel ch00: specifying datafile(s) in backupset

input datafile fno=00010 name=/u010/oradata/clsdwp/ACAPS_HIST_01.dbf

input datafile fno=00095
name=/u004/oradata/clsdwp/il_extract_monthly_indx_10105_01.dbf

input datafile fno=00099
name=/u004/oradata/clsdwp/il_extract_monthly_indx_10109_01.dbf

input datafile fno=00028 name=/u005/oradata/clsdwp/dm_risk01.dbf

input datafile fno=00260
name=/u001/app/oracle/oradata/clsdwp/sl_monthly_idx_10012_01.dbf

channel ch00: starting piece 1 at 2007-03-05:20:03:57

released channel: ch00

released channel: ch01

RMAN-00571: ===========================================================

RMAN-00569: =============== ERROR MESSAGE STACK FOLLOWS ===============

RMAN-00571: ===========================================================

RMAN-03009: failure of backup command on ch01 channel at 03/05/2007 20:07:22

ORA-19506: failed to create sequential file, name="FULL_26924_1_616428761", parms=""

ORA-27028: skgfqcre: sbtbackup returned error

ORA-19511: Error received from media manager layer, error text:

   VxBSACreateObject: Failed with error:

   Server Status: Communication with the server has not been iniatated or the server status has not been retrieved from the server.  

RMAN> RMAN>   Recovery Manager complete.

logout  

Script /u001/app/oracle/admin/rman/hot_database_backup_clsdwp.sh

• ended in error on Mon Mar 5 20:08:07 EST 2007 ====

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