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From: gn@rathe.cs.umn.edu
Newsgroups: comp.sys.next
Subject: Viper/Dump problem solved
Summary: ioctl(tape_drive_fid,MTIOCFIXBLK,pointer_to_(_int=512_));
Message-ID: <1991Apr6.214112.7436@rathe.cs.umn.edu>
Date: 6 Apr 91 21:41:12 GMT
Sender: gn@rathe.cs.umn.edu (Greg Noel)
Distribution: na
Organization: Rathe, Inc.
Lines: 29


After a short talk with NeXT (Thanks NeXT!), they
suggested the problem might be that the Viper 150
was a fixed block tape drive.

After tracking down the appropriate man page ( st (4))
I built a little program to set the archive to 
fixed block I/O.  If anyone wants this, let me know.

I then calculated how many feet of tape I would need
if this was 1600bpi tape ( ~8000 ) and dumped the hard 
disk with the command:

dump 0fs /dev/rst0 8000

This worked great!

--
Greg Noel			
uunet!umn-cs!rathe!maschine!gn
--
Just before Skylab re-entry:

TV Reporter: "Excuse sir, why are you wearing that odd aluminum hat?"

Man with Odd Hat:
"Well I figure the chances of a person getting hit by skylab falling
 is one in a million, but what are the chances of it hitting a person 
 wearing a funny aluminum hat....it's got to be in the billions!"