Path: utzoo!utgpu!watserv1!watmath!att!rutgers!mailrus!uwm.edu!genbank!ames!sun-barr!newstop!texsun!texbell!merch!cpe!adaptex!neese
From: neese@adaptex.UUCP
Newsgroups: comp.periphs
Subject: Re: Hard disk controller information wa
Message-ID: <9700003@adaptex>
Date: 2 Dec 89 18:24:00 GMT
References: <11979@psuvax1.cs.psu.edu>
Lines: 66
Nf-ID: #R:psuvax1.cs.psu.edu:11979:adaptex:9700003:000:3083
Nf-From: adaptex.UUCP!neese    Dec  2 12:24:00 1989


>/* ---------- "Hard disk controller information wa" ---------- */
>I am looking for information on hard disk controllers. My PC is *not* IBM
>*not* IBM compatible (It is domestic model - i.e., Japanese model - from NEC).
>So I am building an SCSI host adaptor for it and am going to put an
>SCSI<->ST506 adaptor for my CDC 94205-51.
>
>This PC, NEC 9801F, is supposed to work with DTC 510B - It has driver in the
>rom using vendor specific command set of DTC 510B. So my primary concern is
>where can I get this controller? (This one seems to support SASI only, though.)
>
>However, I am also interested in other SCSI to ST506 adaptors, so that I can
>compare the capabilities and etc. Of my special interests are to acquire the
>specs for the controllers. Maybe, then, the first places to try are the
>technical assistance people at various controller manufactuerers, but I
>do not know what numbers to call.
>
>If you know any sources of such information, would you please e-mail me?
>Pointers to magazines, BBS phone numbers, technical assistance phone numbers,
>etc. are all welcome.
>
>BTW, I've dialed Western Digital BBS to see if they have such an adaptor only
>to find that almost all the controllers they have are for IBM compatibles.
>Living in an IBM world, but I am not an IBM guy. 8-(

I have seen these type of questions often enough that I thought I would post
the numbers and info on our line of SCSI bridge controllers.  To get
more information, you need to call 408-945-8600 and ask for such.

Model Number	Description
ACB-3530A	SCSI->QIC-36 SCSI Rev 17B compitible, bus arbitration,
		disconnect/reconnect, buffered writes w/immediate command
		completion support, QIC-24/QIC-11 media support, automatic
		tape defect handling

ACB-4000A	SCSI->ST506/412 4000A supports MFM encoding, 4070 supports
ACB-4070	RLL 2,7 encoding
		Supports two drives, hard/soft sector support, SCSI Rev 17B
		compatible, 1:1 interleave, 1K dual ported buffer, trans-
		parent flaw management, 32 Bit ECC on ID and data fields,
		wedge servo support, supports drives up to 16 heads/2048
		cylinders

ACB-4520A	SCSI->ESDI Supports 2 ESDI drives, track skewing, 1:1
		interleave, bus arbitration, disconnect/reconnect, trans-
		parent flaw handling, 8K dual ported buffer

ACB-5500	SCSI->ST506 Supports 4 ST506 drives, bus arbitration,
		disconnect/reconnect, transparent flaw management, 2K
		dual ported buffer, link commands supported, SCSI Rev 17B
		compatible.

ACB-5580A	10Mbit/sec SMD Controller w/single ended SCSI drivers
ACB-5580AD	10Mbit/sec SMD Controller w/differential SCSI drivers
ACB-5585	15Mbit/sec ESMD Controller w/single ended SCSI drivers
ACB-5585D	15Mbit/sec ESMD Controller w/differential SCSI drivers
		SCSI Rev 17B compatible, supports 4 (E)SMD drives, bus
		arbitration, disconnect/reconnect, concurrent command
		support for multiple drives, transparent flaw managemment,
		4K dual ported buffer, 32Bit ECC on ID and data fields


			Roy Neese
			Adaptec Central Field Applications Engineer
			UUCP @ {texbell,attctc}!cpe!adaptex!neese
				merch!adaptex!neese


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