[comp.sys.att] ATT6300, ST225 and me

virgil@plx.UUCP (08/17/87)

I am a bit confused and would appreciate any help understanding the following.

I have a fairly new 6300 (1.43 bios) and bought an ST225 with controller for
it.  This was a generic "ibm" compatible kit and although the more significant
chips on the controller have "DTC" stamps, the prom has a Seagate sticker on
it.  Anyway, I got it working after positioning the "external-indigenous"
switch to "external" and using debug to jump to the low level format on prom.
Everything appear to be fine until I had filled half the disc and several 
programs claimed that the disc was full at only 10meg.  I ran customer.exe
and it claimed it only saw a 10meg drive too.  Oh well, so futzaround time
again.  I removed the prom from the controller (there was no obvious way
to disable the chip) and reset the "external-indigenous" switch to "indigenous"
and it also booted fine (actually much better than with the controller prom)
but now FDISK showed that I had only 305 cylinders allocated for C: instead
of the previous 614 even though it also said the the 305 cylinders went from
0 to 613.  Huh???  Does anyone have an idea as to what is wrong with this
picture?  Also, is there something from ATT to do a low level format with
the bios routines?  I appologize if this has been discussed before and hope
some kind person would pass it along.  I am pretty lost in the uucp world but
if you can get to "sun" I should be reachable via "...!sun!plx!virgil"

thanks much
virgil champlin
-- 
"I got it! I got it! ... I ain't got it."