At 05:31 PM 97/11/03 +0300, you wrote:
>I'm going to attach this to the QD21, so I need to reset the jumpers.
>IBM 115MB ESDI drive, type 0669, sequence # 104040108
>There are 6 DIP switched behind the drive terminator. I'm told I have to
>use a straight-through cable, so I went and got one.
Yep, you need one. You can use a standard PC cable and ignore the twisted
connector, or simply cut and resolder the twisted portion. This works for me.
>The drive does nothing. With a crossover cable (Where the pins are
>crossed, a normal PC cable) it went click-clunk, click-clunk, and did
>nothing. The drive is known good. (I pulled it from a PS/2 which we
>upgraded to a SCSI drive)
Here's the plan. Get the drive specs from the IBM web site (this will be
tough, their sites are, in my experience, very hard to navigate), and grab
a copy of the QD21 manual that explains each of the required parameters.
There are copies available online, I can email it to you if necessary.
Boot your machine to the chevron prompt, then start up the QD21 firmware.
Hopefully you'll have the "newer" menu driven version, if not then you'll
have to set up some tables in memory as described in the manual.
The QD21 has a "read disk parameters from device" setting, I'd try that
first to see if it works for your drive. I've have mixed success with
non-DEC drives on this one. If it works then you're away to the races, just
format from the QD21 menus and then INIT DUxx from VMS or whatever's on
your VAX.
If not then you'll have to enter a bunch of parameters from the drive
specs, plus some that you can calculate from the specs as stated in the
manual.
The drive select jumper on the drive must generally be set to "drive select
2". If you're getting no response this may be the problem. The cable must
not be of the twisted variety. Make sure your cable polarity is right, etc.
etc.
I have had success with IBM ESDI drives and the QD21, just keep fiddling
and you'll get it going!
I hope this helps,
Kevin
---
Kevin McQuiggin VE7ZD
mcquiggi_at_sfu.ca
Received on Sat Nov 08 1997 - 10:49:59 GMT