[CentOS] backing up with dump and DLT

Hi, I have a CentOS 4.1 (with a two hdds RAID 1 using mdadm) running
some database system.... I connected a DLT device on its SCSI interface
(/dev/nst0) in order to make some external backup..... I dump several
filesystems (/, /boot /usr /var /home and others)....so and when I try
to dump manualy for expmple /boot I get this:

[root at Server ~]# dump -0vuf /dev/nst0 /boot
  DUMP: Date of this level 0 dump: Thu Sep 13 16:00:02 2007
  DUMP: Dumping /dev/md0 (/boot) to /dev/nst0
  DUMP: Excluding inode 8 (journal inode) from dump
  DUMP: Excluding inode 7 (resize inode) from dump
  DUMP: Label: none
  DUMP: Writing 10 Kilobyte records
  DUMP: mapping (Pass I) [regular files]
  DUMP: mapping (Pass II) [directories]
  DUMP: estimated 5706 blocks.
  DUMP: Volume 1 started with block 1 at: Thu Sep 13 16:00:02 2007
  DUMP: dumping (Pass III) [directories]
  DUMP: dumping directory inode 2
  DUMP: ACLs in inode #2 won't be dumped
  DUMP: dumping directory inode 11
  DUMP: dumping directory inode 14057
  DUMP: ACLs in inode #14057 won't be dumped
  DUMP: dumping (Pass IV) [regular files]
  DUMP: dumping regular inode 12
  DUMP: ACLs in inode #12 won't be dumped
  DUMP: dumping regular inode 13
  DUMP: ACLs in inode #13 won't be dumped
  DUMP: dumping regular inode 14
  DUMP: ACLs in inode #14 won't be dumped
  DUMP: dumping regular inode 15
  DUMP: ACLs in inode #15 won't be dumped
.
.
.
.
.
  DUMP: ACLs in inode #14072 won't be dumped
  DUMP: dumping regular inode 14073
  DUMP: ACLs in inode #14073 won't be dumped
  DUMP: Closing /dev/nst0
  DUMP: Volume 1 completed at: Thu Sep 13 16:00:06 2007
  DUMP: Volume 1 5710 blocks (5.58MB)
  DUMP: Volume 1 took 0:00:04
  DUMP: Volume 1 transfer rate: 1427 kB/s
  DUMP: 5710 blocks (5.58MB) on 1 volume(s)
  DUMP: finished in 1 seconds, throughput 5710 kBytes/sec
  DUMP: Date of this level 0 dump: Thu Sep 13 16:00:02 2007
  DUMP: Date this dump completed:  Thu Sep 13 16:00:06 2007
  DUMP: Average transfer rate: 1427 kB/s
  DUMP: DUMP IS DONE

So, I think I have some problem with dump and some other ACls  (maybe
selinux).... but the fact is that I can't restore nothing because it
seems to be dumping only / filesystem (/dev/md0).. all other filesystems
are not in the tape device....I disabled selinux on this server and
nothing... I always received this error when dumping (ACLs in inode
won't be dumped)

Please, I'm now looking in google but I'd like to hear your opinion
about this error...

Is the DLT devide broken?
Am I making somethig wrong with the command dump?


thanks in advance
Israel