WTB: Emulex MT-02 controller
jules.richardson99 at gmail.com
Wed Apr 23 13:29:37 CDT 2008
Chuck Guzis wrote:
>> Date: Wed, 23 Apr 2008 09:30:23 -0500
>> From: Jules Richardson
>> Sigh.. no. I had it in my head that one of the OMTI 5300 / 5400 boards
>> would do it - I checked though and they *are* QIC-02, but the interface is
>> only SASI, not SCSI :-(
> Or "brain dead" SCSI, in the case of the 7400.
I don't think I've ever had any of the 7xxx-series boards, just the 5xxx ones.
"brain dead" in what way? Just the lack of Identify that you mentioned in
reply to Al?
I've found so many "SCSI" devices of that era which lack Identify but appear
to be otherwise SCSI-compatible. I'm yet to find a way (or find anyone who's
done it) of working around that limitation in Linux - it'd solve a lot of
problems (even if I had to somehow hard-code fake Identify responses into the
kernel driver and compile different kernels for talking to different devices!)
I *think* the way it worked was that there was SASI, then SCSI, then SCSI with
the Common Command Set - and it's the latter which dictates Identify support
(and that modern hardware/software expects). Anything from the "just SCSI"
days doesn't quite cut it...
>> Hazy memory says that one vendor did do a QIC-02 - QIC-36 bridge, but
>> including one of those *and* a suitable SCSI bridge in whatever you're
>> doing might be a bit silly.
> I think the QIC-bridges go the other way. I've got a Wangtek QIC-36-
> to-QIC-02 bridge board (QIC-36 is the "basic stupid" interface, while
> QIC-02 is the "intelligent buffered" interface).
Entirely possible. I've got various QIC drives that I use occasionally, but
nothing that's '02 or '36.
I suppose in theory the protocol/interface might be documented somewhere such
that a suitable high-speed parallel port (of sufficient data width) might be
able to talk to a QIC-02 drive - but that's a lot of effort for something that
then wouldn't be particularly portable.
> Ah, well. Time to look for a nice SCSI QIC drive. Personally, I
> like Tandberg over Wangtek. Anyone have any other preferences?
Can't comment on those two, but I've got a pair of SCSI-interfaced Archive
ones (such as Al mentioned) which have always done me proud (plus a 'just in
case' dead one in the junk pile for a source of donor bits)
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