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From: Steinar.Haug@elab-runit.sintef.no (Steinar Haug)
Newsgroups: comp.sys.hp
Subject: dump aborts with 'bad sblock magic number'
Message-ID: <1991Mar22.160524*Steinar.Haug@elab-runit.sintef.no>
Date: 22 Mar 91 15:05:24 GMT
Sender: news@ugle.unit.no
Organization: SINTEF, Trondheim, Norway.
Lines: 42

I have a problem when using dump to backup an HP-97549 disk. The dump
goes to an Exabyte connected to a Sun workstation. I have used dump on
the same machine previously to backup an HP-97548 disk with no problem.
Btw, both disks have long filename file systems. The HP is a 9000/400s
running HP-UX 7.03.

Dump reports:

rsh faust -n /etc/dump 0usdf 90000 43200 aida:/dev/nrst8 /mnt
  DUMP: Date of this level 0 dump: Thu Mar 21 17:14:12 1991
  DUMP: Date of last level 0 dump: the epoch
  DUMP: Dumping /mnt to /dev/nrst8 on host aida
  DUMP: bad sblock magic number
  DUMP: The ENTIRE dump is aborted.

(while on the 97548 disk I get:

rsh faust -n /etc/dump 0usdf 90000 43200 aida:/dev/nrst8 /
  DUMP: Date of this level 0 dump: Sun Mar 10 15:08:14 1991
  DUMP: Date of last level 0 dump: the epoch
  DUMP: Dumping /dev/rdsk/0s0 (/) to /dev/nrst8 on host aida
  DUMP: This is an HP long file name filesystem
  DUMP: mapping (Pass I) [regular files]
  DUMP: mapping (Pass II) [directories]
  DUMP: estimated 187753 tape blocks on 0.01 tape(s).
  DUMP: dumping (Pass III) [directories]
  DUMP: dumping (Pass IV) [regular files]
  DUMP: 16.99% done, finished in 0:24

etc.)

I can use the filesystem, fsck with no errors, etc. Just not dump it. Why?

On a related note, does anybody know of software which will allow me to
use fbackup/frecover on the HPs for remote dumps to a Sun? I assume I need
a somewhat enhanced rmt driver... Using fbackup/frecover would presuambly
give me better speed than dump/restore.

Steinar Haug, system/networks administrator
SINTEF DELAB, University of Trondheim, NORWAY
Email: Steinar.Haug@delab.sintef.no, 
	sthaug@idt.unit.no, steinar@tosca.er.sintef.no