[3676] in linux-scsi channel archive
Re: Buslogic & expensive cables...
daemon@ATHENA.MIT.EDU (Brendan Miller)
Fri Apr 10 14:51:43 1998
Date: Thu, 9 Apr 1998 11:47:07 -0700
From: Brendan Miller <brmiller@wco.com>
To: "Leonard N. Zubkoff" <lnz@dandelion.com>
Cc: fredl@dutchie.org, linux-scsi@vger.rutgers.edu
Reply-To: Brendan Miller <brmiller@wco.com>
In-Reply-To: <199804072151.OAA07880@dandelion.com>; from Leonard N. Zubkoff on Tue, Apr 07, 1998 at 02:51:07PM -0700
On Tue, Apr 07, 1998 at 02:51:07PM -0700, Leonard N. Zubkoff wrote:
> Date: Tue, 7 Apr 1998 14:35:21 -0700 (PDT)
> From: Fred Leeflang <fredl@dutchie.org>
>
> [25-pin scanner on mostly 68-pin bus...]
>
> That must be a FlashPoint DW.
>
> Mixing 25 pin pseudo-SCSI devices with any real high performance SCSI devices
> is generally a bad idea and likely to be quite unreliable. Using a separate
> SCSI card is a very good idea in this case.
This sparks interest here. I have one UW disk, 3 narrow dsks, a CDROM,
and a ZIP drive on my BT-958. Because I want my UW disk and my CDROM
internal (and I don't want to spend a fortune on cables), I am using
the internal 68pin connector and the internal 50pin connector. This means
I *cannot* use the external 68pin connector. But how to connect my ZIP
drive? (I wouldn't purchase all the cabling to make the 25pin ZIP
attach to the external 68pin BusLogic anyway...)
So this is what I have done. Prepare for the cheeziest solution yet:
The UW disk is the only one on the 68pin connector of the BT-958. From
the internal 50pin connector, I have my internal CDROM, two of the three
narrow disks, then a 50-pin male ribbon cable connector to an external
HD50 female connector. On the *outside* of the case, I have the third
narrow disk drive followed by my ZIP drive. Today, my internal CDROM
is broken and in the midst of RMA hell, so I have an external CDROM hooked
up to the external chain as well.
But I have this super-long chain which may very well cause problems I
am not aware of yet. (Most of the important stuff is on the UW disk
anyway.) But I was consdering this thread, and I thought I could probably
move the external narrow disk interal, and put my ZIP drive on its own
controller, and shorten my SCSI chain. Does this sound like a better
idea?
I have two choices for a SCSI card for the ZIP. I have an Adaptec 1502E
(I think) that could have originally been a ZIP zoom type card. It's
a 16bit ISA card that has a AIC-6360 or somesuch chip on it that I think
I've used under Linux before. I also have a Trantor 130B. This card
is somewhat cool because it even has BIOS on it!! I doubt I can boot
off it usefully, though. It has a whole bunch of jumpers and dipswitches
that I haven't always figured out. It's an 8 bit card too. Which of
these would be better? The Iomega/Adaptec? Probably. Or neither, should
I get something else?
Feedback appreciated.
Brendan Miller
P.S. I still haven't solved my BusLogic module "does not match 2.0.33"
problem I posted a few days ago as a result of a kernel upgrade to 2.0.33,
so if anyone wants to help, let me know. Dave has been very kind and
helpful so far, but the problem still persists.
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