rmf%Janus.MRC.AdhocNet.CA%UNCAEDU.BITNET@cornellc.ccs.cornell.edu (Russ Forster) (10/07/88)
I have a Segate ST-412 10meg drive hooked up to an A2090 card.
As this type of drive wasn't on the PREP list of drives I used
ST-442 (which is an ST-506 20meg type of drive (i think)).
When I formatted DH0: I noticed that I had 323 cylinders (format
died with a 'Can't fine device' type of error). I've since defined
the drive as a 4 head generic 10meg drive and it works fine with
305 cylinders.
Since 10 meg = 305 cylinders, how can I make use of the other 18
cylinders?
/Russ
-----
Russell M. Forster, Systems Programmer II.
Mount Royal College DECnet: RMF @ Janus
Computer Operations BITnet: RForster @ UncaEdu.BITnet
4825 Richard Rd. S.W. ICBM: 51 03 N / 114 05 W
Calgary, Alberta Phone: (403) 240-6052
T3E 6K6dillon@CORY.BERKELEY.EDU (Matt Dillon) (10/08/88)
Russ Forster(rmf%Janus.MRC.AdhocNet.CA%UNCAEDU.BITNET@cornellc.ccs.cornell.edu)
Writes:
: I have a Segate ST-412 10meg drive hooked up to an A2090 card.
: As this type of drive wasn't on the PREP list of drives I used
: ST-442 (which is an ST-506 20meg type of drive (i think)).
: When I formatted DH0: I noticed that I had 323 cylinders (format
: died with a 'Can't fine device' type of error). I've since defined
: the drive as a 4 head generic 10meg drive and it works fine with
: 305 cylinders.
:
: Since 10 meg = 305 cylinders, how can I make use of the other 18
: cylinders?
:
: /Russ
Usually, extra cylinders exist on the inside or outside of the
disk to give a landing area when you power the drive down (most new drives
do not actually land on the disk surface, but this is a 'safety' or 'lock'
zone) *NEVER* use more cylinders than the drive specs show. Look at the
description for your particular drive and don't use more cylinders than it
says you can use.
10 meg ? Boy, that is small! Get a bigger drive!
-Matt