Kevin, a Nice, I have one too (an UC08, which is just a dual-port version of the '7). Yup.. come to Holland, attend one of the 6-weekly "dump" shows, and find yourself loaded with 1 and 2GB drives for a couple of bucks... from Ultrix will think it is an RA81, most likely. The controller will be seen as either an RQDX3 (MFM QBUS) or an UDA50 (MFM Unibus). Never tried that, 'cos the controller is still on my "todo shelf". Drives attached to either will report as RAxx'es... I have a kernel with "RA99" compiled in. That is a test for my experimental support for Ultrix-32-like "partition tables" (/etc/chpt et al). Works OK so far... Anyway. Uhm, your drive most probably should work fine when referred to as an RA81 on an RQDX or similar.. UDA50 comes to mind. Cheers, Fred ********************************************************************** This email and any files transmitted with it are confidential and intended solely for the use of the individual or entity to whom they are addressed. 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This footnote also confirms that this email message has been swept by MIMEsweeper for the presence of computer viruses. www.mimesweeper.com ********************************************************************** Received: (from major@localhost) by minnie.cs.adfa.edu.au (8.9.3/8.9.3) id JAA58983 for pups-liszt; Sat, 24 Mar 2001 09:49:41 +1100 (EST) (envelope-from owner-pups(a)minnie.cs.adfa.edu.au) Received: from Tempo.Update.UU.SE (IDENT:0@Tempo.Update.UU.SE [130.238.19.17]) by minnie.cs.adfa.edu.au (8.9.3/8.9.3) with ESMTP id JAA58979 for &lt;pups(a)minnie.cs.adfa.edu.au&gt;; Sat, 24 Mar 2001 09:49:36 +1100 (EST) (envelope-from bqt(a)update.uu.se) Received: from localhost (bqt@localhost) by Tempo.Update.UU.SE (8.11.2/8.11.2/Update-Iltempogigante) with ESMTP id f2NMhLt31294; Fri, 23 Mar 2001 23:43:21 +0100 Date: Fri, 23 Mar 2001 23:43:20 +0100 (CET) From: Johnny Billquist &lt;bqt(a)update.uu.se&gt; To: "Fred N. van Kempen" &lt;Fred.van.Kempen(a)microwalt.nl&gt; cc: "'Kevin Murrell'" &lt;kevin(a)xpuppy.freeserve.co.uk&gt;, Pups Mailing List &lt;pups(a)minnie.cs.adfa.edu.au&gt; Subject: RE: [pups] Disk query on Ultrix 3.1 In-Reply-To: &lt;6F63E31101C6D41196490008C7B2BFC3020A54(a)mwnt4.microwalt.nl&gt; Message-ID: &lt;Pine.LNX.4.21.0103232340070.25398-100000(a)Tempo.Update.UU.SE&gt; MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-pups(a)minnie.cs.adfa.edu.au Precedence: bulk On Fri, 23 Mar 2001, Fred N. van Kempen wrote: > Kevin, > > > from > > my setup. I made an 'educated' guess of RA81 for the moment, and that > > works. > Ultrix will think it is an RA81, most likely. The controller will be seen > as > either an RQDX3 (MFM QBUS) or an UDA50 (MFM Unibus). Never tried that, 'cos > the > controller is still on my "todo shelf". Drives attached to either will > report > as RAxx'es... Actually, the UDA-50 isn't MFM, it's SDI. The QBUS equivalent is the KDA-50. There is no MFM controller for Unibus. That is, no equivalent of the RQDXn exists for Unibus. Disks on the RQDXn reports as RDxx or RXxx, while disks on the [KU]DA-50 reports as RAxx (from a hardware point of view). They're both MSCP controllers though. Johnny Johnny Billquist || "I'm on a bus || on a psychedelic trip email: bqt(a)update.uu.se || Reading murder books pdp is alive! || tryin' to stay hip" - B. Idol Received: (from major@localhost) by minnie.cs.adfa.edu.au (8.9.3/8.9.3) id LAA59471 for pups-liszt; Sat, 24 Mar 2001 11:29:20 +1100 (EST) (envelope-from owner-pups(a)minnie.cs.adfa.edu.au) Received: from mwnt5.microwalt.nl (mwnt5.microwalt.nl [195.86.89.38]) by minnie.cs.adfa.edu.au (8.9.3/8.9.3) with ESMTP id LAA59467 for &lt;pups(a)minnie.cs.adfa.edu.au&gt;; Sat, 24 Mar 2001 11:29:15 +1100 (EST) (envelope-from Fred.van.Kempen(a)microwalt.nl) Received: from mwnt4.microwalt.nl (unverified) by mwnt5.microwalt.nl (Content Technologies SMTPRS 4.1.5) with ESMTP id &lt;T0a005f26527aa2a507(a)mwnt5.microwalt.nl&gt;; Sat, 24 Mar 2001 01:19:57 +0000 Received: by mwnt4.microwalt.nl with Internet Mail Service (5.5.2650.21) id <HLMQJ1WA>; Sat, 24 Mar 2001 01:16:22 +0100 Message-ID: &lt;6F63E31101C6D41196490008C7B2BFC3020A55(a)mwnt4.microwalt.nl&gt; From: "Fred N. van Kempen" &lt;Fred.van.Kempen(a)microwalt.nl&gt; To: "'Johnny Billquist'" &lt;bqt(a)update.uu.se&gt;, "Fred N. van Kempen" &lt;Fred.van.Kempen(a)microwalt.nl&gt; Cc: "'Kevin Murrell'" &lt;kevin(a)xpuppy.freeserve.co.uk&gt;, Pups Mailing List &lt;pups(a)minnie.cs.adfa.edu.au&gt; Subject: RE: [pups] Disk query on Ultrix 3.1 Date: Sat, 24 Mar 2001 01:16:13 +0100 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2650.21) Content-Type: text/plain; charset="iso-8859-1" Sender: owner-pups(a)minnie.cs.adfa.edu.au Precedence: bulk Johnny, Ahhh, i knew it was something-50 :) Twas a while ago since I last touched a Unibus box.. can you tell? :) Yup. The UC0x talks MSCP (and/or TMSCP, if configured) on the Qbus side, and SCSI on the device side. I have an UC08 which is configured for MSCP on bus 0, and TMSCP on bus1. The attached Exabyte 8200 (2GB) is seen as a giant TK50 :) That was on the MVII, though.. havent used it since. Was going to put it in the 11/83, _if_ I can find a BA123. Anyone got one of those laying around? :) Cheers, Fred ********************************************************************** This email and any files transmitted with it are confidential and intended solely for the use of the individual or entity to whom they are addressed. If you have received this email in error please notify the system manager. This footnote also confirms that this email message has been swept by MIMEsweeper for the presence of computer viruses. www.mimesweeper.com **********************************************************************