Restore backup and Archecker Failed...

Hi, IDS 7.31 FD2 HP-UX 11.00 first, sorry my poor english.. I tried restore a archive Level 0 and failed... When test the backup file with archecker , failed too... The backup file is create over file system: TAPEDEV /backup/L_backup TAPEBLK 1024 # Tape block size (Kbytes) TAPESIZE 400000000 # Maximum amount of data to put on tape (Kbytes) The size of backup file is approximate 270GB. This backup take 12 hours to execute (normally takes 4 hours) because a heavy user process are executed parallel... The execution of ontape -s -L 0 for this backup are return successfully... The ontape -r output : -------- ... Continue restore? (y/n)y Do you want to back up the logs? (y/n)n Physical restore failed - The archive backup is corrupted. Program over. /teste/arc > -------- the output of archecker: ------- ... Scan PASSED Control page checks PASSED Reserve page validation PASSED Table checks FAILEDt_tdi_refer BLOBChunk checks PASSED Tables/Fragments validated: 1889 Tables with missing data: 164 Total missing pages: 578325 ----------- look in ac_msg.log , show a lot of erros like: ------- ERROR: Table dbgestao:st_log_codigo partnum 0x03300002 missing physical page 0x0AA0ABC2 ERROR: Page 0x0aa0abc3 not found in bitmaps ----- Somebody have any tip what I can do to avoid this situation? Execute the backup without users process connected? Exists any CCFLAGS to solve this? Just a note , I already restored another backups successful with this database.... this is my first exception... Thanks Cesar Abra sua conta no Yahoo! Mail, o único sem limite de espaço para armazenamento! http://br.mail.yahoo.com/