Path: utzoo!utgpu!jarvis.csri.toronto.edu!cs.utexas.edu!swrinde!zaphod.mps.ohio-state.edu!usc!apple!sun-barr!newstop!texsun!alanya.Sun.COM!lupe
From: lupe@alanya.Sun.COM (Lupe Christoph  Sun Germany Consulting)
Newsgroups: comp.sys.amiga
Subject: Re: "Standard SCSI"
Message-ID: <1990@texsun.Central.Sun.COM>
Date: 16 Jan 90 17:48:47 GMT
References: <8267@nigel.udel.EDU>
Sender: news@texsun.Central.Sun.COM
Lines: 40

jones@eglin.af.mil (Calvin Jones, III) writes:

>Jukka Lindgren <toweri@clinet.fi> writes:

>> Is anyone out there able to tell, how "standard" the "standard"
>> SCSI-drives are?

>> In my work, I am seeing a lot of >300Mb SCSI-drives, and sometimes I
>> have wondered, if it would be possible to connect them to my Amiga.  
>> I have GVP 42Mb drive with GVP controller.  It has an external connector
>> (25 pins) and it draws its power from Amigas own power supply.  Is the
>> external connctor ONLY for Amiga-SCSI-drives, or is it universal?
>> (More or less, at least...)

I believe the external connector is MAC compatible. Anyway, there is
the pinout in the manual. I just did a cable for my GVP. Haven't tested
it yet, since I don't have the 2x25 connectors for the drive and the
box yet. (Fry's in Silicon Valley sells IBM-look boxes for two half-height
drives. I haven't checked if a full-height drive mounts OK. They have a
universal PS for 110/220V. All for $90. Not too bad).

If you want to use TERMPWR on the external connector to power your drive,
please don't. It's meant to supply power for the terminators only.
Your drive will need +12V anyway.

Some experience with OEMs connecting assorted drives to Sun Workstations
shows that the only problems can come from the Mode Select command of
the drive (rare) and the bad block information. The Sun format program
can only do one of the three possible formats.

A bad thing about the GVP controller is that the software that comes
with it is virtually undocumented. Fortunately I have not needed anything
yet, so I can't tell about support by their German distributor (DTM)
or GVP themselves.


| lchristoph@Sun.COM     (Internet)              | 		Disclaimer: |
| ...!unido!sunmuc!lupe  (German EUNet, "bang")  | 	  My employer has a |
| lupe@sunmuc.UUCP       (German EUNet, domain)  |    non-exclusive license |
| ...!suninfo!lchristoph (Sun Germany customers) | 	     to my opinion. |