🚀 go-pugleaf

I've been asked for more information about hooking up a SCSI drive to
an S81.  This is from memory and is sketchy, so beware...

The QIC tape drive on the S81 is on a SCSI bus.  We connected our
drive to that bus.  

Before formating the drive we had to modify the kernal.  We allowed an
additional SCSI device (by uncommenting

device          sd0     at sec? req 4 doneq 4 bin 5 unit ? target ?

in the machine description file) and probably running MAKEDEV.

Further, our drive (a Fujitsu M2263S, appox.  760MB) was larger than
the max allowed size for a SCSI drive in our kernal so we had to
change the parameter SD_END in /usr/sys/sec/sd.h.  (we bumped it from
1400000 to 14000000).

To format the drive we used some combination of the sdformat command
and the format command. That sdformat command required rebooting the
machine and runnning from the monitor.  The format command could be
run in muli-user mode.  Just now looking at the format command I
can't even remember what all the options mean.  I do remember us
running it many times trying to get parameters right.

Sorry its not a cookbook, but I hope its helpful.

James S. Vera      |         Internet           |Standard Disclaimers
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