Multi Tape support on Solaris 8 (DDS 4)

[Ted Stuchberry]

Hi,

 

I am trying to tar information to a DDS 4 Tape drive to Multiple tapes on an Sun Solaris 8 OS (E4500) using GNU Tar 1.13

 

I am getting an I/O error when it is to change tapes. It continues on with the second tape, but It appears the first tape becomes corrupt. Is there a fix to this? Is this a Bug, or something I am doing wrong?

 

Also I noticed that the Tar added close to 100G on a tape that is rated to hold 20G (40G if hardware compression was enabled)

 

Here are the commands I ran…

# /usr/local/bin/tar -cMf /dev/rmt/0 compOneMtestdir

/usr/local/bin/tar: WARNING: Cannot close /dev/rmt/0 (3, -1): I/O error

Prepare volume #2 for /dev/rmt/0 and hit return:

#

 

compOneMtestDir was a Directory with 100,000 1M compressed files for a total of ~100G the first tape made it to

 

The second tape finished OK, but when I try to retrieve the data, the first tape will only make it to record compOneMtestdir/oneM98509

And the second tape starts on record ~ compOneMtestdir/oneM98540 (I can’t remember exactally as I have written over the tape now…)

 

Here is what my extraction received:

# /usr/local/bin/tar -xvMf /dev/rmt/0

compOneMtestdir/

compOneMtestdir/oneM1

compOneMtestdir/oneM2

compOneMtestdir/oneM3

…

compOneMtestdir/oneM98507

compOneMtestdir/oneM98508

compOneMtestdir/oneM98509

Prepare volume #2 for /dev/rmt/0 and hit return:

/usr/local/bin/tar: compOneMtestdir/oneM98509 is not continued on this volume

Prepare volume #2 for /dev/rmt/0 and hit return:

/usr/local/bin/tar: compOneMtestdir/oneM98509 is not continued on this volume

Prepare volume #2 for /dev/rmt/0 and hit return:

/usr/local/bin/tar: compOneMtestdir/oneM98509 is not continued on this volume

Prepare volume #2 for /dev/rmt/0 and hit return:

/usr/local/bin/tar: compOneMtestdir/oneM98509 is not continued on this volume

Prepare volume #2 for /dev/rmt/0 and hit return:

/usr/local/bin/tar: compOneMtestdir/oneM98509 is not continued on this volume

Prepare volume #2 for /dev/rmt/0 and hit return: (I just hit <ctrl-c> here)

#

# ls

compOneMtestdir

# du . -k compOneMtestdir

101662664       compOneMtestdir

 

(this is all the info extracted from the first volume which was ~100G)

 

So using the –M option I lost ~30files in my test.

 

Any help is greatly appreciated

 

Thanks,

 

Ted Stuchberry

Nortel Networks

972 685 2440

address@hidden

Richarson Tx, USA

 

PS here is the output from the version command…

 

# /usr/local/bin/tar --version

tar (GNU tar) 1.13

 

Copyright (C) 1988, 92,93,94,95,96,97,98, 1999 Free Software Foundation, Inc.

This is free software; see the source for copying conditions.  There is NO

warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

 

Written by John Gilmore and Jay Fenlason.