Tape drives

[Dave Olson]

In <1991Jun13.102527 at crocus.medicine.rochester.edu> ajp2o at crocus.medicine.rochester.edu (Anthony J. Persechini) writes:

| O.K. I looked in the system administrator's guide under "disk and cartridge
| tape devices" and find no discussion of cartridge tape devices. So
| perhaps some kind soul can give me a hand. I recently installed
| a new WREN 380 meg disk, which seemed to want to be in the
| bottom slot of my 4D20G (under 3.3.1). This necessitated moving the tape drive
| to the upper one. I now cannot figure out how to get it working. 
| It appears that the machine cannot find it; shouldn't it
| have found it automatically on boot up? Perhaps the problem
| is the way the tape drive is jumpered. Any suggestions, especially
| from those who have dealt with this problem would be
| appreciated greatly.

This almost certainly means that you didn't get the drive all the way
seated.  Shut the system down, power it off, pop the drive back out,
and then push it in until you get a good solid click.  You can then
power up, press ESC to go to maintainence mode, and them from the >>
prom prompt (after pressing 5), you can type 'hinv'.

You should see all the scsi devices listed.  If not, either something
isn't seated, or somehow you have more than one device at the same scsi
ID.  The tape drive is slow to respond on the scsi bus compared to many
disks, so sometimes you don't even see errors when a disk and tape have
the same ID.
--

	Dave Olson

Life would be so much easier if we could just look at the source code.