11 Dec
2004
11 Dec
'04
4:20 p.m.
They also made SCSI ZIPs - used on Macs and SGIs, etc. The parallel models
used a proprietary SCSI over parallel protocol, at least on the early ones, and
were slower than snails. I've never popped one open to see if it is possible
to revert to SCSI, though (probably not). I think I heard that later models
used an encapsulated IDE protocol. I'm not sure if it is still the case, but I
think some of the old (2.2.x) Linux kernels had some documentation about the
protocol.
It could be possible to hack together a similar interface for floppies,
though (encapsulate over parallel port)
11 Dec
11 Dec
4:28 p.m.
They also made SCSI ZIPs - used on Macs and SGIs, etc.
Mine is SCSI. Some of the later ones worked on both - you could plug
them into either parallel port or SCSI port (using the same cable,
even, if your SCSI is the old Mac DB25F SCSI) and they'd Just Work.
Given, of course, appropriate software, which they supplied for a few
mainstream OSes but as far as I know didn't give any help for those
wanting to write it for others...as usual. :-?
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10:30 p.m.
On Sun, 2004-12-12 at 01:20 -0500, Saquinn624(a)aol.com wrote:
It could be possible to hack together a similar
interface for floppies,
though (encapsulate over parallel port)
I think I kicked off a similar discussion a while back as I wanted to be
able to hook a floppy drive up to the parallel port to read / write raw
data and do all the processing in software (so I could read alien format
disks).
Problem was that the parallel port is way too slow for the data stream
needed for the floppy - so yes it could be done, but you need a
reasonably intelligent interface which buffers data at the track level
though and oversamples the data stream on reading.
cheers
Jules
10:35 p.m.
actually I have a scsi ZIP drive
and it is possible to run it on straght scsi.. I do here.
basically you just need the scsi card and a standard external scsi cable to
fit.
the only propriety bit was the stupid little dongle that you had attached to
either end of the cable. i've run it fine here on standard scsi using a
normal scsi pc-card.
the other thing, watch out for the head crashing problem. as it tends to
knacker the disks.... if u start getting a clunking sound then look up on
google. there was a site which had a fix for it, but i forget what it was.
regards
charles
----- Original Message -----
From: <Saquinn624(a)aol.com>
To: <cctalk(a)classiccmp.org>
Sent: Sunday, December 12, 2004 6:20 AM
Subject: Re: Iomega ZIP drives
They also made SCSI ZIPs - used on Macs and SGIs, etc.
The parallel models
used a proprietary SCSI over parallel protocol, at least on the early
ones, and
were slower than snails. I've never popped one open to see if it is
possible
to revert to SCSI, though (probably not). I think I heard that later
models
used an encapsulated IDE protocol. I'm not sure if it is still the case,
but I
think some of the old (2.2.x) Linux kernels had some documentation about
the
protocol.
It could be possible to hack together a similar interface for floppies,
though (encapsulate over parallel port)
---
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12 Dec
12 Dec
12:26 a.m.
In message <002501c4e047$1231f420$0c650750@gamemachine>
<charlesb(a)otcgaming.net> wrote:
the other thing, watch out for the head crashing
problem. as it tends to
knacker the disks.... if u start getting a clunking sound then look up on
google. there was a site which had a fix for it, but i forget what it was.
Ohh yes. The Zip drive Click-o'-Death. My, that brings back memories.
Painful, painful memories...
I've got a Zip Plus that needs a new PSU, but I have no intention of spending
any money on it. The media is far too expensive, especially in comparison to
CD-Rs and DVD-Rs. That and the drives aren't particularly reliable. Optical
media (especially DVD) tends to be a fair bit more robust. CDs are at the low
end - a scratch on the label side will convert any CD into a coaster. DVDs
don't tend to suffer from that problem to the same degree (CDs have the data
layer on top of a layer of plastic; DVDs have two layers of plastic on the
outside with the data layer sandwiched in the middle).
Punched paper or mylar tape would probably last a lot longer than any CD
though :)
Later.
--
Phil. | Acorn Risc PC600 Mk3, SA202, 64MB, 6GB,
philpem(a)philpem.me.uk | ViewFinder, 10BaseT Ethernet, 2-slice,
http://www.philpem.me.uk/ | 48xCD, ARCINv6c IDE, SCSI
... We all have failures. The question is, what do we do with them?
12:37 a.m.
charlesb(a)otcgaming.net wrote:
actually I have a scsi ZIP drive
and it is possible to run it on straght scsi.. I do here.
basically you just need the scsi card and a standard external scsi cable
to fit.
the only propriety bit was the stupid little dongle that you had
attached to either end of the cable. i've run it fine here on standard
scsi using a normal scsi pc-card.
the other thing, watch out for the head crashing problem. as it tends to
knacker the disks.... if u start getting a clunking sound then look up
on google. there was a site which had a fix for it, but i forget what it
was.
regards
charles
The site you are thinking of is Gibson Research, I suspect.
http://grc.com/tip/clickdeath.htm
Is the "stupid little dongle" you are talking about the thing that
changed a standard 50-pin high density scsi connector to a 25-pin D
connector? That is a somewhat standard kind of a dongle. You can buy
cables that do the same translation.
9:43 p.m.
----- Original Message -----
From: "Dave Mabry" <dmabry(a)mich.com>
To: <charlesb(a)otcgaming.net>et>; "General Discussion: On-Topic and Off-Topic
Posts" <cctalk(a)classiccmp.org>
Sent: Sunday, December 12, 2004 2:37 PM
Subject: Re: Iomega ZIP drives
<CUT>.
The site you are thinking of is Gibson Research, I
suspect.
http://grc.com/tip/clickdeath.htm
Is the "stupid little dongle" you are talking about the thing that changed
a standard 50-pin high density scsi connector to a 25-pin D connector?
That is a somewhat standard kind of a dongle. You can buy cables that do
the same translation.
yea that's the one dave, couldnt think of it off hand. but yea that was what
I meant and was the easiest way for me to describe it. :D
regards
charles
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6 comments
6 participants
participants (6)
-
charlesb＠otcgaming.net -
dmabry＠mich.com -
julesrichardsonuk＠yahoo.co.uk -
mouse＠Rodents.Montreal.QC.CA -
philpem＠dsl.pipex.com -
Saquinn624＠aol.com