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From: cmv@looney.UUCP
Newsgroups: unix-pc.general
Subject: Re: Miniscribe Drives for the unix-pc
Message-ID: <1100027@looney>
Date: Thu, 3-Dec-87 15:37:00 EST
Article-I.D.: looney.1100027
Posted: Thu Dec  3 15:37:00 1987
Date-Received: Wed, 9-Dec-87 22:22:58 EST
References: <1100025@looney>
Lines: 88
Nf-ID: #R:looney:1100025:looney:1100027:000:4415
Nf-From: looney!cmv    Dec  3 14:37:00 1987


Once again, I'm updating my list of ST-506 hard disk drives. This new info
came out of a table from Mini-Micro Systems Magazine  (p111, November 1987).
One thing to note, if you look at this table, there are a lot of listings
for drives with something greater than 191.2 MBytes. As far as I can tell,
these products really are drives from other companies that are modified in
some way (i.e. a different controller) to squeeze out the extra space. This
type of product will not work with the Western Digital controller in the
unix-pc, so take the information in table with a grain of salt.

Before I start, there are 2 things. First, I still don't understand much 
about how 2,7RLL encoding affects the st-506 interface. Can I drop a drive
into a stock unix-pc that has 2,7RLL encoding and have it work without any
other modification or not? Any help here would be appreciated! Secondly,
I want to mention that I don't if any of these drives actually work with
the unix-pc other than the fact that they are advertised as ST-506 copmatible.
If you KNOW that they work, let me know and I'll post results when appropriate.
By the way, the ST-506 drive that wins the capacity prize is Priam Corp's model
519 drive weighing in at 191.2MBytes (San Jose CA 408/946-4600), any
experience out in netland with this baby?

Anyway, here is the most complete list I can compile right now:

Model	Height	Size 		Ave Seek	Heads:		Recording
		unformatted	time		Cylinders	Method
=========================================================================
----------------------------CONTROL DATA---------------------------------
FWCDC48	Full	48.20MBytes	28msec		5:925		MFM
94205-51 Half	51.__MBytes	28msec		?		?
FWCDC85	Full	85.30MBytes	28msec		8:1024		MFM
94155-86 Full	86.__MBytes	28msec		9:925		MFM
-------------------------DIGITAL EQUIPMENT CORP--------------------------
RD32	Half	51.__MBytes	48msec		?		?
RD53	Full	85.__MBytes	38msec		?		?
RD54	Full	191._MBytes	38msec		?		?
-------------------------------FUJITSU-----------------------------------
M2243R	Half	129._MBytes	29msec		?		?
-------------------------------HITACHI-----------------------------------
DK521	Half	51.40MBytes	25msec		?		?
-------------------------------MAXTOR------------------------------------
XT1085	Full	85.30MBytes	28msec		8:1024		MFM
XT1120	Full	127.9MBytes	28msec		8:1024		2,7RLL
XT1140	Full	143.5MBytes	27msec		15:918		MFM
XT2190	Full	191.2MBytes	30msec		15:1224		MFM
-----------------------------MICROPOLIS----------------------------------
1333A	Full	53.30MBytes	30msec		5:1024		MFM
1335	Full	85.30MBytes	30msec		8:1024		MFM
----------------------------MICROSCIENCE---------------------------------
HH-1050	Full	53.35MBytes	28msec		?		?
HH-4050	Full	53.35MBytes	18msec		?		?
-----------------------------MINISCRIBE----------------------------------
		**formatted**
		*****size****
3212+	Half	12.75MBytes	53msec		2:615		MFM
3425+	Half	21.40MBytes	53msec		4:615		MFM
3438+	Half	32.70MBytes	53msec		4:615		2,7RLL
3650	Half	42.25MBytes	61msec		6:809		MFM
6032	Full	26.70MBytes	28msec		3:1024		MFM
6053	Full	44.60MBytes	28msec		5:1024		MFM
6079	Full	68.80MBytes	28msec		5:1024		2,7RLL
6085	Full	71.30MBytes	28msec		8:1024		MFM
6128	Full	110.1MBytes	28msec		8:1024		2,7RLL
---------------------------NEWBURY DATA INC------------------------------
NDR1000	Full	65.__MBytes	25msec		?		?
NDR2000 Full	190._MBytes	28msec		?		?
--------------------------------PRIAM------------------------------------
ID40	Full	51.10MBytes	28msec		5:981		MFM
ID45H	Half	53.20MBytes	28msec		5:1024		MFM
ID60	Full	71.50MBytes	28msec		7:981		MFM
ID130	Full	159.9MBytes	28msec		15:1024		MFM
519	Full	191.2MBytes	22msec		?		?
-----------------------------RODIME INC----------------------------------
RO5090	Full	89.__MBytes	28msec		?		?
-------------------------------SEAGATE-----------------------------------
ST225	Half	25.60MBytes	20msec		4:615		MFM
ST238R	Half	38.40MBytes	20msec		4:615		2,7RLL
ST251	Half	51.20MBytes	40msec		6:820		MFM
ST277R	Half	76.90MBytes	40msec		6:829		2,7RLL
ST4038	Full	38.20MBytes	40msec		5:733		MFM
ST4053	Full	50.90MBytes	40msec		5:1024		MFM
ST4096	Full	96.00MBytes	28msec		9:1024		MFM
-------------------------------TOSHIBA-----------------------------------
MK-56FB	Full	86.__MBytes	25msec		?		2,7RLL
=========================================================================

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