Hi all,
Last week I posed the following question:
>
>Hi All,
>
>I have one machine with an 8 mm tape-drive
>and another with a 4 mm tape drive.
>
>Now, I'd like to make a copy from a 44 mm
>tape to an 8 mm tape.
>
>Can I do that without using disk as
>intermedium ?
>
I got many answers - see list of contributors at
end of this summary.
Anyway, the general answer was to use the program
'dd', and I've done it thus:
dd if=/dev/<local 4 mm device> bs=20b | \
rsh <remote host> dd of=/dev/<remote 8mm device> pbs=20b
It worked without problems. Probably one could optimize
on the blocking factor.
Some suggested me to try with tar, but I just can't make that
work. The problems are:
1: tar doesn't allow you to specify a remote tape-drive.
2: So the way to do it would be similar to the one above.
Now, here you'd want the (local) tar command to take input
from a tape and write it to the standard-output. As far as
I can see, that is not possible. I do believe that there's
a GNU tar which will allow you to do this.
Some suggested to connect both drives to the same workstations
and use the tcopy-command. Thanks, I didn't know the command,
still it's to much of a hazzle to have to move the drives, and
it works only locally.
David Markowitz included a tape-copying tool, that he has made
himself. I found it easier to use the inbuilt commands, but haven't
tried out his tool quite yet.
So, thanks to all you guys and girls:
-------------------------------------
drc@amherst.com,
Peter.Marelas@fulcrum.com.au,
jgotobed@LPL.Arizona.EDU,
pilonm@CCG.RNCan.gc.ca,
jmfranco@campus.cem.itesm.mx,
bleck@zephyr.eng.hou.compaq.com,
roy@bluestone.com,
thimm@idiap.ch,
steve@epic.co.uk,
kandy@illustra.com,
mickey@intr.net,
des@cs.duke.edu,
sweh@mpn.com,
stanley@OCE.ORST.EDU,
gerhard@jason.nl,
stevee@sbei.com,
dav@jasmine.litronic.com,
roddy@visual-ra.SWMED.EDU,
mattias@txc.com,
prijoto@jakarta.geoquest.slb.com,
friedel@wise.tau.ac.il,
jak@arcadis.be,
andrea.bellinzaghi@jrc.it,
peter.allan@aear.co.uk,
nleroy@norland.idcnet.com,
Peter.Bestel@uniq.com.au,
James.Ashton@keating.anu.edu.au
David Willard at SRC-Home_Office@mailhost.scires.com
(- what a list - people from about 10 nations !)
Regards:
Morten Krabbe Barfoed
Danish Space Research Institute phone: +45 35 32 58 30 (switch-board)
Juliane Maries Vej 30 phone: +45 35 32 57 20 (me directly)
DK 2100 Copenhagen East FAX: +45 35 36 24 75
Denmark e-mail: morten@dsri.dk
This archive was generated by hypermail 2.1.2 : Fri Sep 28 2001 - 23:10:56 CDT