Thanks for the many responses! There were too many names to list!!!
Commands summarized below followed by original message.
tcopy (if drives on same system; may not work with all tape formats)
=====
tcopy source [ destination ]
EX:
tcopy /dev/rst0 /dev/rst1
tcopy /dev/rmt/xxx /dev/rmt/yyy
dd
==
Drives on Same System
---------------------
dd if=/dev/<tape drive 1 address> of=/dev/<tape drive 2 address>
EX:
dd if=/dev/rmt/0m ibs=126b | dd of=/dev/rmt/1m obs=126b
Drives on Different Systems
---------------------------
dd if=/dev/rmt/0m ibs=126b | rsh tapehost -n dd \ of=/dev/rmt/1m
obs=126b
dd if=/dev/rmt/0m bs=10240 | remsh host2 'cat | dd of=/dev/rmt/0m \
bs=10240'
Blocking size comments:
"The idea is to use a blocksize which streams well, in other words
both tapes running continuously, without constant stopping and
restarting."
Reminder to check validity of tape copied with:
mt -f /dev/rmt/1 rewind
tar tvf /dev/rmt/1n
** Other suggestions (which I did not try yet) are:
=========================================================
cp -r (if you're going from one Solaris 8mm to another of the
same size on the same system)
tar xf $TAPE1 - | tar cf $TAPE2 - (for tar tapes)
ORIGINAL QUESTION
=================
At 02:08 PM 5/13/98 GMT, you wrote:
> We are trying to copy the contents of one 8mm tar tape
> directly to another 8mm tape without going to disk in between.
This archive was generated by hypermail 2.1.2 : Fri Sep 28 2001 - 23:12:40 CDT