[comp.sys.amiga.tech] SCSI device software question

limonce@pilot.njin.net (Tom Limoncelli) (05/30/89)

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