SUMMARY: rdump problem revisited

From: Aline H. Runde - MicroModule Systems (
Date: Mon Jun 13 1994 - 19:30:44 CDT

Original question

> Thank you so much to all who replies. I'm truly sorry that it is the SUN FAQ.
> But I forget to mention this previously. I would like to know if anyone can
> rdump sucessfully from a Sun to a 8MM DAT drive on DEC Ultrix system, if yes,
> would you please show me how. I'm currently using SunOS V4.1.3

> Rdump to the DEC machine failed with the command (similar error message
> Lost connection to remote host)
> # dump 0dsbfu 54000 13000 126 itchie:/dev/rmt0h /dev/sd2c
> but if I use this command:
> # dump 0uf itchie:/dev/rmt0h /dev/sd2c
> it works but it used up lot of tapes, and I don't think it's right. I gave up
> when it asked to mount volume 4.

Thanks again for all the help, Aline...

Thanks so much to all who replied. Ian MacPhedran sent me the solution to my
problem. Thanks a lot Ian.


> I think you mean 4mm DAT - the 8mm ones are the Exabyte style drives. I
> do not do exactly what you do, but I can dump from Ultrix to SunOS 4.1.3
> drives. I do have one suggestion ...

Ian, I mean 8mm DAT - that is a Mountain FileSafe 2100D tape drive.

> Try:
> # dump 0usf 31000 itchie:/dev/rmt0h /dev/sd2c
> ^^^^^
> some large number, this is just an example. Dump is fairly
> dumb about how long a tape is, and will ask for a new one when it gets to
> what it thinks is the end. The problem is likely with the blocking factor
> - you could try with both size and density specified to see if that also
> works.

> Ian.

Ian MacPhedran, Engineering Computer Centre, University of Saskatchewan.
2B13 Engineering Building, U. of S. Campus, Saskatoon, Sask., CANADA S7N 0W0
Phone: (306)966-4832 Fax: (306)966-8710 Email: Ian_MacPhedran@engr.USask.CA

I tried 31000 as Ian suggested but then it asked for more than one tape.

So a second try:

# dump 0usf 54000 itchie:/dev/rmt0h /dev/sd2c

and the dump finished without any error, in one tape.
To test my dump tape, I restored some files and it worked great.


This archive was generated by hypermail 2.1.2 : Fri Sep 28 2001 - 23:09:03 CDT