Article View: comp.sys.amiga.tech
Article #12907SCSI device software question (was Re: Autoboot Question)
From: Tom Limoncelli
Date: Mon, 29 May 1989 19:54
Date: Mon, 29 May 1989 19:54
22 lines
1464 bytes
1464 bytes
Well the program works, but I want to verify a couple things before I
send it out.
From the GVP documentation, SCSI Block numbers run 1..(whatever) and
MountList LowCyl minimum value is 1. All this starts-with-zero/
starts-with-one math works out, but do all hard drive controllers do
this? If the GVP controller calculates the first SCSI Block of a
partition to be (LowCyl-1) x Surfaces x BlocksPerTrack + 1
[compensating on the LowCyl and adds one at the end to map it to a
system where blocks run from 1 to (whatever)] should I assume that
they all do this? Do any other controllers have users set their
LowCyl to 0 so that the first SCSI Block of a partition is LowCyl x
Surfaces x BlocksPerTrack + 1 ?
Should I assume that they are all like GVP or should I make it a
user-selectable option?
-Tom
--
Tom Limoncelli -- tlimonce@drunivac.Bitnet -- limonce@pilot.njin.net
Drew University -- Box 1060, Madison, NJ -- 201-408-5389
Standard Disclaimer: I am not the mouth-piece of Drew University
Technical Details
Message-ID:
<May.29.15.54.49.1989.7769@pilot.njin.net>Path:
arc1-ca.pugleaf.net!utzoo!attcan!utgpu!jarvis.csri.toronto.edu!rutgers!njin!limonceReferences:
<May.27.18.08.11.1989.10818@pilot.njin.net>Show Full Headers
Complete Article Headers
Path: arc1-ca.pugleaf.net!utzoo!attcan!utgpu!jarvis.csri.toronto.edu!rutgers!njin!limonce From: limonce@pilot.njin.net (Tom Limoncelli) Newsgroups: comp.sys.amiga.tech Subject: SCSI device software question (was Re: Autoboot Question) Message-ID: <May.29.15.54.49.1989.7769@pilot.njin.net> Date: 29 May 89 19:54:49 GMT References: <May.27.18.08.11.1989.10818@pilot.njin.net> Distribution: na Organization: Drew University/NJIN Lines: 22