vdump/vrestore problem

From: Kent Adams <Kent.Adams_at_jcu.edu.au>
Date: Mon, 17 Jun 1996 14:47:28 +1000 (EST)

Running DUnix V3.2c with *** AdvFS CONSOLIDATED PATCH ***
PATCH ID: OSF350-163 installed.

We are using vdump/vrestore to afford backups. We are using an EXAbyte
210 tape stacker. Basically the script for each system takes the ADVFS
filesystems one by one and writes them to a tape eg

for BUHOST in ${BACKUP_SYSTEMS}
do
   for FS in ${ADVFS}
   do
      rsh ${BUHOST} -n vdump -0ub 60 -f - ${FS} | dd of=/dev/nrmt0h obs=60
   done
done

Some save sets are okay but we get the following problem with monotonous
regularity eg on a tape where the first two sets were ok looking at the
third:

314 lionfish:cckba # mt -f /dev/nrmt0h rewind
315 lionfish:cckba # mt -f /dev/nrmt0h fsf 2
316 lionfish:cckba # vrestore -ivf /dev/nrmt0h
vrestore: Date of the vdump save-set: Mon Jun 17 12:22:31 1996

RECORD HEADER (unknown/unexpected)
 record type : 593756160
 data offset : 5629501681762304
 record size : 0
 flags : <data-continued>

RECORD HEADER (unknown/unexpected)
 record type : 843317250
 data offset : 2550726239545786368
 record size : 0
 flags : <data-continued>

RECORD HEADER (unknown/unexpected)
 record type : 1310720
 data offset : -9223090561017970686
 record size : 0
 flags : <data-split>

RECORD HEADER (unknown/unexpected)
 record type : 0
 data offset : 0
 record size : 0
 flags : <none>
.
.
 above repeated many times
.
.
RECORD HEADER (unknown/unexpected)
 record type : 0
 data offset : 844424930131968
 record size : 0
 flags : <none>

RECORD HEADER (unknown/unexpected)
 record type : 0
 data offset : 1768507278679474176
 record size : 0
 flags : <none>

RECORD HEADER (unknown/unexpected)
 record type : 593973233
 data offset : 450078488863440896
 record size : 0
 flags : <data-split>

RECORD HEADER (unknown/unexpected)
 record type : 116588544
 data offset : 2306124479895437312
 record size : 0
 flags : <data-continued><data-split>

RECORD HEADER (unknown/unexpected)
 record type : 0
 data offset : 5428807877280464896
 record size : 12740
 flags : <data-continued><data-split>

RECORD HEADER (unknown/unexpected)
 record type : 961898
 data offset : 3570702675329527594
 record size : 25122
 flags : <data-split>
vrestore: ino_tbl_add_dir(9662); parent ino not found
 

Regards, Kent Adams, System Unit Manager, Computer Centre
snail: James Cook University of North Queensland, Townsville, Australia..4811
email: Kent.Adams_at_jcu.edu.au phone:+61 077 814255 fax:+61 077 815230
Received on Mon Jun 17 1996 - 06:55:08 NZST

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