Hi Morris,
It's a long time since you post this message below
however maybe you're still there or maybe someone on
the mailing list can also help me with the same
questions as Morris Siegel asked.
I have the same tape drive (HP Colorado 5GB), it works
fine however, I have the same doubts that you had in
your mail. I couldn't find the answers in the mailing
list that's why I'm writing, maybe you or anyone on
the mailing list already know them.
I don't know how can I add new files to the end of the
tape data and also I did read in the paride
documentation that pt driver works better with the
parallel port delay to 0 however, I don't know either
how I can set this parameter.
Also I did read that pt driver have a best performance
with a block size of 32Kb, which can be done with the
-b 64 option in the tar command. I couldn't make
backup copy of large files without this option
however, with this option there is no problem. ("tar
-b 64 -cvf /dev/pt0 /" works great for large amount of
data.)
Thanks in advance for any reply.
Fernando Ruza
email: fruza@yahoo.com
======================================================
Morris Siegel wrote on
Tue, 8 Feb 2000 18:17:12 -0500 (EST):
I have used my HP Colorado 5GB parallel-port tape
drive under
Red Hat 6.0, but still have some problems and
questions.
I loaded the modules as follows:
insmod parport
insmod paride
insmod epat
insmod pt verbose=1
/dev/pt[0123] already existed; I had to manually do
(cd /dev; ./MAKEDEV -v pt) to create /dev/npt[0123],
the non-rewinding equivalents.
(1) The commands "mt -f /dev/pt0 eod" elicits the
error message
"/dev/pt0: Invalid argument", and similarly for
/dev/npt0.
Is there some way to persuade mt to recognize
/dev/{,n}pt0?
Is there any other command to allow writing a file to
the
end-of-tape-data instead of to the beginning-of-tape?
(2) I have seen some references to setting the port
delay
to 0 to speed up the drive. Is the proper way to do
this
insmod pt verbose=1 drive0=0,,,,,0
or is there some other way? (I tried this latter
invocation of
insmod, and the tape drive worked, but I'm not sure it
ran faster
than when I did the initial insmod.)
Thanks for any replies.
===================================================
=====
---------------------------------------------------------
Fernando Ruza Rodríguez
fruza@yahoo.com
Tfno curro:0034 91 8877051
Tfno movil:649 020078
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This archive was generated by hypermail 2b29 : Tue May 29 2001 - 13:04:46 EDT