From: davem@col.hp.com (Dave K. Martin)
Date: Fri, 7 Jun 1991 15:07:38 GMT
Subject: Re: Need Quantum Q250 Specs
Message-ID: <18730007@col.hp.com>
Organization: HP Colorado Springs Division
Path: utzoo!utgpu!news-server.csri.toronto.edu!rpi!zaphod.mps.ohio-state.edu!sdd.hp.com!hp-col!col!davem
Newsgroups: comp.sys.amiga.hardware
References: <1991Jun6.203652.20963@cbnewsm.att.com>

I don't know if these are useful for what you need but you might want to try 
these settings:


QUANTUM        408-262-1100
------------------------------------------------------------------------------
MODEL                            CAP   CYC  H  RWC  WPC ENC  RATE ACCESS  
	SCSI
	Q-250            5.25 HH  53   823  4  -    -   R    10   26 MS
	Q-280            5.25 HH  80   823  6  -    -   R    10   26 MS
	Q-160            5.25 HH  200  -   12  -    -   R    10   26 MS
	PRO40             3.5"    42   -    -  -    -   -    -    19 MS
	PRO80             3.5"    84   -    -  -    -   -    -    19 MS
	PRO120            3.5"    120  -    -  -    -   -    -    19 MS
	PRO170            3.5"    168  -    -  -    -   -    -    19 MS
------------------------------------------------------------------------------
-----------------------------------------------------------10/2/89-----------
|       CAP   = CAPACITY IN FORMATTED MEGABYTES
|       CYC   = MAXIMUM NUMBER OF CYLINDERS
|       H     = NUMBER OF DATA HEADS
|       RWC   = START REDUCED WRITE CURRENT
|       WPC   = START WRITE PRECOMP
|               IF IT'S = CYC + 1 THEN IT IS NOT USED
|       ENC   = ENCODING METHOD R=RLL, M=MFM
|       RATE  = TRANSFER RATE IN MEGABITS/SEC
|       HH    = HALF HIGH FORM FACTOR
|       R     = RLL (run length limited)
|       N     = NRZ (non return to zero)
|       M     = MFM (modified frequency modulation)
|       SA    = STAND ALONE
|       Z     = ZBR
------------------------------------------------------------------------------

This was extracted from a list of many different hard drives and parameters
that I pulled off of SCI.ELECTRONICS recently so I make no claims of accuracy 
or useability.  If there is enough interest, I can post the entire list which
covers arount 250 different drives.

hope this is useful...
davem