From edith!cmcl2!nrl-cmf!think!snorkelwacker!usc!cs.utexas.edu!uunet!bywater!acheron!archet!larouch!jparnas Tue Feb 27 10:19:42 EST 1990
Article 2210 of comp.sys.ibm.pc.rt:
Path: edith!cmcl2!nrl-cmf!think!snorkelwacker!usc!cs.utexas.edu!uunet!bywater!acheron!archet!larouch!jparnas
>From: jparnas@larouch.uucp (Jacob Parnas)
Newsgroups: comp.sys.ibm.pc.rt
Subject: Re: 3rd Party Drive in IBM RT
Message-ID: <1990Feb25.233908.1196@larouch.uucp>
Date: 25 Feb 90 23:39:08 GMT
References: <91.25dc43cf@venus.ycc.yale.edu>
Reply-To: jparnas@larouch.UUCP (Jacob Parnas)
Organization: Larouch Headquarters, Hopewell Junction, NY
Lines: 34


In article <91.25dc43cf@venus.ycc.yale.edu> newman@suncis.ycc.yale.edu (Andrew N
ewman) writes:
>Ok:
>
>Now I've really done it.  I went ahead and got one of those zippy HUGE
>EESDI drives that cost hardly anything from CDC.  I intend to put it in
>my RT Workstation running ACIS.  The drive I bought is a WREN VI with the
>EESDI controller.  Pertinent specs I have are:
>
>               # of Sectors Per Track: 53
>               # of heads              15
>               # of cylinders          1632
>...

The problem is that the Wren VI ESDI is a 15 Mhz drive.  The EESDI card
only supports up to 10 Mhz.

Wren V's are (to the best of my knowledge) the biggest ESDI disks that
the EESDI card supports (442 MB unformatted).  If you want bigger
disks, get the Adaptek SCSI controller (around $300) and you can
use Wren VI SCSI or Wren VII SCSI.  There is a public domain driver
for the Adaptek SCSI adapter.  The (Seagate/Imprimis/CDC) Wren VI is
766 MB and the Wren VII is 1.2 GB (unformatted).

Note:  This driver only exists for 4.3 BSD/AOS.  No AIX support.

------------------------------------------------------------------------------
| Jacob M. Parnas                    | DISCLAIMER: The above message is from |
| IBM Thomas J. Watson Research Ctr. | me and is not from my employer.  IBM  |
| Arpanet: jparnas@ibm.com           | might completely disagree with me.    |
| Bitnet: jparnas@yktvmx.bitnet      \---------------------------------------|
| Home: ..!uunet!bywater!acheron!larouch!jparnas | Phone: (914) 945-1635     |
------------------------------------------------------------------------------


From edith!cmcl2!phri!sci.ccny.cuny.edu!rpi!zaphod.mps.ohio-state.edu!uakari.primate.wisc.edu!aplcen!uunet!mcsun!sunic!chalmers!afs-news!utcrt2.utc.chalmers.se!bernerus Thu Mar  1 14:00:05 EST 1990
Article 2216 of comp.sys.ibm.pc.rt:
Path: edith!cmcl2!phri!sci.ccny.cuny.edu!rpi!zaphod.mps.ohio-state.edu!uakari.primate.wisc.edu!aplcen!uunet!mcsun!sunic!chalmers!afs-news!utcrt2.utc.chalmers.se!bernerus
>From: bernerus@utcrt2.utc.chalmers.se (Christer Bernerus)
Newsgroups: comp.sys.ibm.pc.rt
Subject: Adaptec SCSI driver available (AOS only)
Keywords: Device driver
Message-ID: <725@vice2utc.chalmers.se>
Date: 28 Feb 90 16:04:08 GMT
Sender: news@vice2.utc.chalmers.se
Reply-To: bernerus@utcrt2.utc.chalmers.se (Christer Bernerus)
Organization: Chalmers University of Technology, Gothenburg, Sweden.
Lines: 25

Many of you try to connect 3:rd party disks to the RT, many seems to
have trouble.
There seems to be a rumor seeping out that there is a PD SCSI driver available,
and, in fact the rumor is true. We started using RT's for AFS file servers two
years ago. When our disk space ran out we didn't want to buy more IBM
9332's so we 
someone bought a pile of Maxtor XT4380S's for me. They just happened to be
single-ended SCSI and not diffrential as IBM's adapter was. Also,
someone bought
a SCSI streamer tape. The same week that Adaptec salesperson went by and .....

The driver can be ftp'd from wasp.ctp.se.ibm.com. Look in pub/ibm43/scsi.tar.Z.

The driver also contains that tape driver (at least useful for backing
up things)
If you use it, please let me know (via mail)

Chris.

------------------------------------------------------------------------
----------------
Christer Bernerus (SM6FBQ)			! E-mail:
Univerity Technology Center for Andrew (UTC)	! bernerus@utc.chalmers.se
Chalmers University of Technology		
S-412 96 Gothenburg  SWEDEN					


From edith!cmcl2!yale!think!snorkelwacker!spdcc!dyer Thu Mar  1 14:00:37 EST 1990
Article 2217 of comp.sys.ibm.pc.rt:
Path: edith!cmcl2!yale!think!snorkelwacker!spdcc!dyer
>From: dyer@spdcc.COM (Steve Dyer)
Newsgroups: comp.sys.ibm.pc.rt
Subject: Re: Adaptec SCSI driver available (AOS only)
Keywords: Device driver
Message-ID: <1880@ursa-major.SPDCC.COM>
Date: 28 Feb 90 19:25:02 GMT
References: <725@vice2utc.chalmers.se>
Reply-To: dyer@ursa-major.spdcc.COM (Steve Dyer)
Organization: S.P. Dyer Computer Consulting, Cambridge MA
Lines: 13

Let me just add that Christer's Adaptec driver is *the* answer
for anyone who needs more disk space.  I'm running a Newbury Data 4380S (300mb)
and a Wren VI (600+ mb) off the Adaptec controller.  Works like
a charm.

High capacity SCSI disks are cheap and seem to be getting cheaper
by the week.  I purchased the Wren VI last week from Arrow Electronics
for $2300.

-- 
Steve Dyer
dyer@ursa-major.spdcc.com aka {ima,harvard,rayssd,linus,m2c}!spdcc!dyer
dyer@arktouros.mit.edu, dyer@hstbme.mit.edu


From edith!cmcl2!uupsi!njin!jvncf!fulcomer Fri Mar  2 09:35:23 EST 1990
Article 2229 of comp.sys.ibm.pc.rt:
Path: edith!cmcl2!uupsi!njin!jvncf!fulcomer
>From: fulcomer@jvncf.csc.org (Samuel G. Fulcomer nac1280)
Newsgroups: comp.sys.ibm.pc.rt,comp.periphs.scsi
Subject: Re: [comp.sys.ibm.pc.rt] Re: Adaptec SCSI driver available (AOS only)
Message-ID: <686@jvncf.csc.org>
Date: 1 Mar 90 16:07:53 GMT
References: <11207@stag.math.lsa.umich.edu>
Reply-To: fulcomer@jvncf.csc.org.UUCP (Samuel G. Fulcomer nac1280)
Distribution: na
Organization: John Von Neumann Center, Princeton, N.J.
Lines: 9
Xref: edith comp.sys.ibm.pc.rt:2229 comp.periphs.scsi:45

In article <11207@stag.math.lsa.umich.edu> dyer@ursa-major.spdcc.COM (Steve Dyer) writes:
>
>High capacity SCSI disks are cheap and seem to be getting cheaper
>by the week.  I purchased the Wren VI last week from Arrow Electronics
>for $2300.

That's about the right price for the Wren VII. I prefer the HP-97548S because 
I like HP's 5 yr. warranty (optional extended warranty on the Wrens is 
~$30/yr.). Now that the 1+GB HP-97549S is available I'll buy it.


From edith!cmcl2!yale!cs.utexas.edu!usc!zaphod.mps.ohio-state.edu!uakari.primate.wisc.edu!aplcen!uunet!bywater!acheron!archet!wlm Thu Mar  8 10:45:15 EST 1990
Article 2252 of comp.sys.ibm.pc.rt:
Path: edith!cmcl2!yale!cs.utexas.edu!usc!zaphod.mps.ohio-state.edu!uakari.primate.wisc.edu!aplcen!uunet!bywater!acheron!archet!wlm
>From: wlm@archet.UUCP (William L. Moran Jr.)
Newsgroups: comp.sys.ibm.pc.rt
Subject: Re: Adaptec SCSI driver available (AOS only)
Keywords: Device driver
Message-ID: <344@archet.UUCP>
Date: 7 Mar 90 08:00:29 GMT
References: <725@vice2utc.chalmers.se> <1880@ursa-major.SPDCC.COM> <795@ns-mx.uiowa.edu>
Reply-To: wlm@archet.UUCP (William L. Moran Jr.)
Organization: A Desperate and Dedicated Crew
Lines: 54

In article <795@ns-mx.uiowa.edu> jnford@jay.weeg.uiowa.edu (Jay Ford) writes:
>
>
>Could somebody send me an address for Adaptec?  They aren't in any phone book
>around here, not even the AT&T 800 directory.
>

>From tha back of the docu-book which adaptec supplies:
691 South milpitas blvd.
milpitas, ca 95035
(408) 945-8600

>Also, are the Wren drives internal (in the RT disk bays) or external (separate
>cabinet)?  Is it necessary to retain at least one ESDI-type drive for booting?
>

Yes, the Wren SCSI disks are internal (they are standard form factor).
Yes, you need one esdi disk to boot and swap from. Although it should
be possible to swap from a scsi disk, it isn't working at the moment.

>I have some pending calls for info on Wren & HP drives, but in case they don't
>pan out I'd appreciate some info on the various drives: capacity (formatted),
>speed (seek, transfer rate, etc), etc.  Comments on service arrangements would
>also be appreciated: cost, responsiveness, turn-around time, etc.


The Wren VII formats to ->
/dev/xt0d     786186       4  707562     0%    /mnt4
/dev/xt0a     193865   78381   96097    45%    /mnt3
             =980051 M
The Wren VI formats to about 600M as I recall. As for speed, the Wren
VI gets slightly better throughput than the Wren VII, but the Wren VII
does much better than ESDI disks. There is also a Wren V SCSI, as I
recall it is in the range of 450M formatted, but I may be wrong.

For example, I have observed about 400k/sec read performance with a
Wren V running off of a (HESDI I think). The last time I looked, I was
getting about 800k/sec read performance from a Wren VII.

HP has announced a 1.6G disk which supposedly has a 150000 MTBF rate
and a five year warranty, but they aren't being delivered yet.
Seagate/Imprimis is also talking about bigger and better disks (the
Wren VIII) 

Bill


-- 
arpa: moran-william@cs.yale.edu or wlm@ibm.com
uucp: uunet!bywater!acheron!archet!wlm or decvax!yale!moran-william
-------------------------------------------------------------------------------
"Every man has his weakness." Pause. "Mine," added Doc, "is bestiality
and Baskin-Robbins girls."
		The Monkey Wrench Gang - Edward Abbey


From lori!cmcl2!yale!think!zaphod.mps.ohio-state.edu!brutus.cs.uiuc.edu!psuvax1!news Mon Apr  9 09:11:30 EDT 1990
Article 2357 of comp.sys.ibm.pc.rt:
Path: lori!cmcl2!yale!think!zaphod.mps.ohio-state.edu!brutus.cs.uiuc.edu!psuvax1!news
>From: ehrlich@cs.psu.edu (Daniel Ehrlich)
Newsgroups: comp.sys.ibm.pc.rt
Subject: Re: Non-IBM drives for RT PC
Message-ID: <E4wqs=4@cs.psu.edu>
Date: 6 Apr 90 18:19:59 GMT
References: <1834@zipeecs.umich.edu> <17750002@acf4.NYU.EDU>
	<27630@ut-emx.UUCP> <90096.101430ANKGC@CUNYVM.BITNET>
Sender: news@cs.psu.edu (Usenet)
Organization: Computer Science Department, Penn State University
Lines: 10

Just a point of information.  It seems that MAXTOR 4380Es come in at least
two flavors.  We discovered this when we tried added a 4380E onto a
6150/125.  Turns out that the RT controller requires the 4380E to have a
'Top Level Assembly' number of 1094508.  I do not know if all the digits are
significant or not.  What our distributor told us was that the RT's disk
adapter uses a shoter index pulse that `normal'.  If you are going to buy
4380Es make sure that you specify the TLA number above.
--
--
Dan Ehrlich <ehrlich@cs.psu.edu>/Voice: +1 814 863 1142/FAX: +1 814 865 3176


From lori!cmcl2!yale!cs.utexas.edu!uunet!bywater!acheron!archet!wlm Tue Apr 10 10:39:08 EDT 1990
Article 2363 of comp.sys.ibm.pc.rt:
Path: lori!cmcl2!yale!cs.utexas.edu!uunet!bywater!acheron!archet!wlm
>From: wlm@archet.UUCP (William L. Moran Jr.)
Newsgroups: comp.sys.ibm.pc.rt
Subject: Re: Non-IBM drives for RT PC
Message-ID: <352@archet.UUCP>
Date: 7 Apr 90 22:54:31 GMT
References: <1834@zipeecs.umich.edu> <2346@ursa-major.SPDCC.COM>
Reply-To: wlm@archet.UUCP (William L. Moran Jr.)
Distribution: na
Organization: A Desperate and Dedicated Crew
Lines: 17

The Wren V ESDI disk works fine in a BSD RT; the Wren VI ESDI will not
work. 

Steve is right, buy the Adaptec and a SCSI disk (I know Wren VIs and
VIIs work with it). Also, with a little bit of effort you can attach
an Exabyte to back everything up. 

Bill Moran

-- 
arpa: moran-william@cs.yale.edu or wlm@ibm.com
uucp: uunet!bywater!acheron!archet!wlm or decvax!yale!moran-william
-------------------------------------------------------------------------------
I've been told, when I get older
That I'll understand it all,
But I'm not sure if I want to.
			Kate Bush


From cmcl2!yale!cs.utexas.edu!samsung!zaphod.mps.ohio-state.edu!rpi!bu.edu!orc!inews!iwarp.intel.com!psueea!parsely!twiki!dalew Mon Jun 18 09:33:38 EDT 1990
Article 579 of comp.periphs.scsi:
Path: cmcl2!yale!cs.utexas.edu!samsung!zaphod.mps.ohio-state.edu!rpi!bu.edu!orc!inews!iwarp.intel.com!psueea!parsely!twiki!dalew
>From: dalew@twiki.PDX.COM (Dale A. Weber)
Newsgroups: comp.periphs.scsi
Subject: Adaptec 1540/42 Controller Info
Summary: From information received in E-Mail
Message-ID: <4ciwk3w162w@twiki.PDX.COM>
Date: 17 Jun 90 08:20:38 GMT
Organization: Experimenter's Anonymous - Portland, OR USA
Lines: 48


  Below is the reply I received to my posting here a week or so ago direct
from Roy Neese at Adaptec. I'll definitely be getting the 1542B, or
whatever the very latest release is when I convert my system to SCSI. One
of the main reasons is that the 1540/42 is the _only_ SCSI controller that
is currently supported by one of my favorite operating systems - QNX.

================================ Cut Here ===================================
>/* Written 8:01 am Jun 14,1990 by twiki.UUCP!dalew in adaptex:comp.periphs.s */
>/* ---------- "Adaptec 1542 (latest rev)" ---------- */
>
>   What is the latest revision/version of this controller?

AHA-1540B w/o floppy controller and AHA-1542B w/floppy controller

>   Will it support a SCSI tape drive as well as hard drives and floppy
>drives?

Under DOS 3.3 or 4.x;
	The first two hard drives are supported without drivers, tape
	requires a driver (ASW-210) and more than two hard drives requires a
	driver (ASW-1410).

Under SCO XENIX;
	Up to 7 drives (tape or hard) on each adapter.  2 adapters supported.

Under SCO UNIX;
	Up to 4 drives (tape or hard) on each adapter.  2 adapters supported.

Not sure what ISC supports or ESIX.

>   How many hard drives will it support?

Up to 7 controllers (targets) with up to 8 drives (LUNs) attached to each
controller (56).

>   What's a good street price and source for this controller?

About $276.00.  Major sources for this adapter are Hamilton-Avnet, Anthem
Electronics, and Wyle Labs.

			Roy Neese
			Adaptec Senior SCSI Applications Engineer

---
INTERNET: dalew@pdx.com OR dalew@twiki.pdx.com (Dale A. Weber)
UUCP: ..!uunet!twiki!dalew OR ..!{sun!nosun, tektronix}!tessi!twiki!dalew
 BBS: +1(503)239-4960, 24 Hours, 1200/2400 Bps MNP 1-5, PCPable via ORPOR


