test-drb December 1999

test-drb@ccmp.vtda.org

186 participants
742 discussions

by ethan_dicks＠yahoo.com

--- Bill Pechter <pechter(a)pechter.dyndns.org> wrote: > To the best of my memory... something like 3.4-3.5 was about right > for '84. My first exposure to VMS was around September, 1984. ISTR that it was 3.4. It was on an 11/750 w/8Mb+RA81. My employer paid $26,000 for that drive, too. > The RC25 disk was supposed to be the least reliable thing ever made. Hmm... I never had a lick of problem with mine. Maybe I was just lucky. I can say that it broke no speed records, though. -ethan ===== Infinet has been sold. The domain is going away in February. Please send all replies to erd(a)iname.com __________________________________________________ Do You Yahoo!? Thousands of Stores. Millions of Products. All in one place. Yahoo! Shopping: http://shopping.yahoo.com

24 years, 7 months

VMS 4.7 was VAXstation 3100 history (Was ... different)

by allisonp＠world.std.com

<Wow.... I HAD planned on putting hobbyist 7.2 on my recently acquired <3100/m76, 16Mb, RZ23(wiped). Guess I should set my sights on a bigger driv <or older OS. Hard to believe that this machine came with such a smallish <drive. the RZ23 is a tad small but the 3100/m76 16mb is otherwise fine for 7.2. Try and find a RZ24 or better yet a RZ25(1GB) scsi. The install really wants (full boat) a RZ56 (667mb) for comfort but there is easily 250mb free after your done so you can see it works. If you want to live only with a RZ23 then early V5 such as 5.4 or 5.5 is a good choice if you don't install DECwindows or the optional libraries. I've jammed 5.4 into a RD53(71mb) with 11,000 free blocks when done! Allison

24 years, 7 months

Solder Problems (PDP-8/m related)

by allisonp＠world.std.com

< I have heard all kinds of reasons why to not use my method. <The only one that I agree with is that once the grease is <on a part, you can't get stamped ink to stick to the surface. The only reason I know is that it's hard to remove the silicon oils and you cant solder through it. The contacts should be cleaned first, a little bit of silicon based grease or oil is ok to protect the surface but globs of it is not desireable. If you have solder problems keep the silicon grease away until fixed! Allison

24 years, 7 months

VMS 4.7 was VAXstation 3100 history (Was ... different)

by allisonp＠world.std.com

<> Well.... I dont know about those "minimum RAM requirements"... I've been <> getting away with running V7.2 on a VS3100/38 with 4 megs of RAM and a <> single RZ23 in it for a bit... can't do much with it though :) You can bet the system is slow though. It takes a lot of swapping to run at all in that little. get another 4mb and you'll be plesently surprized. <I don't know if I should be scared or impressed :^) I'm surprised the V7. <even let you do the install! What can I say, I'm impressed! VMS does have a minimum and it's somewhere between 2.5 and 3.2mb for V7 as that much ram must be present for the "core" system for the resident portion to run. The rest is swappable. Allison

24 years, 7 months

VMS 4.7 was VAXstation 3100 history (Was ... different)

by ndiablo＠diablonet.net

Yeah, probably for the long term, but if you want something to play around with _right now_ its not bad in terms of responsiveness and very basic usability.... I pretty much crammed the whole base OpenVMS 7.2 VAX system on there (sans DECnet) and still have about 8 megs to spare :) Personally, I was rather surprised that OpenVMS would fit (usably, albeit not much) on such a small drive in the first place :) -Sean Caron (root(a)diablonet.net)

24 years, 7 months

What did Ampex make that used core memory?

by aek＠spies.com

Ampex made core memory assemblies for a number of different companies A picture would make IDing it easier. 11x14 might be Varian or DG.

24 years, 7 months

Everyone here should read this.. I thought I'd seen everything.

by dylanb＠sympatico.ca

-----Original Message----- From: Lance Costanzo <lance(a)costanzo.net> To: Discussion re-collecting of classic computers <classiccmp(a)u.washington.edu> Date: Thursday, December 02, 1999 8:07 PM Subject: Re: Everyone here should read this.. I thought I'd seen everything. >At 05:41 PM 12/2/99 -0500, you wrote: ><big snip> >>he did not want to sell them at first as he was *required* to >>destroy them. ><snip> >>I *agree* to destroy anything I buy from him ;-) ><snip to end> > >Very sad story, but typical of our times. >I hope you can rescue some of it. > >FWIW: If he's under an "assured destruct" contract, and you're buying from >him, >then you both can be in a lot of hot water if the wrong people find out. > I don't know if he is under assured destruct. The boards I purchased from him today were from a University Research Center (a supercomputer in their lab) so that would not fall under it (I imagine). I do know he is willing to sell me some super computers and some must have serial numbers removed... I have no idea what the game is yet.. I've only known him for 4 hours. I do know he will have his staff remove serial numbers if I purchase certain super computers??? john >Lance. > >

24 years, 7 months

HP Apollo Series 400

by ndiablo＠diablonet.net

Wow, _very cool_ in my opinion :) Those are old HP/Apollo workstations. They run either HP-UX or Domain/OS UNIX. The Series 400 was the last 680x0 based series of workstations that were produced by Apollo shortly after they were purchased by Hewlett Packard. Definently interesting systems; especially if you got one running Domain... I believe you can run NetBSD on _some_ 400 series systems (perhaps just the 425t; I have not checked in a while) if you're looking for something a bit more current. They do need fixed frequency monitors to run; and I think the keyboard/mouse on them are HP-HIL (although there may be a second alternative interface also; i've never actually seen one; just read about them :) In any case, if you don't want one of them, and are willing to ship it, i'd pay a few bucks for one :) -Sean Caron (root(a)diablonet.net)

24 years, 7 months

VAXstation 3100 history (Was ... different)

by CLASSICCMP＠trailing-edge.com

>>I still wonder why. The only thing I can think of is that either the driver >>for the RC25 was removed or that VMS would no longer fit on an RC25 cartridge >>as a boot volume. The drives used two platters, one fixed, one removable, >>26Mb >Don't know about as a boot disk, but the RC25 is still supported. Definitely not for the boot disk. The most basic VMS kit (that is, without help pages, without libraries, certainly no DECWindows!) for VMS 6.1 won't fit in the 25 Mbytes available in a RC25. 6.2 "officially" requires more than 120 Mbytes for a basic installation, but if you fool its installation procedure you can shoehorn it onto a RZ23 (100 Mbytes) >I suspect it was a question of RAM. Looking at the configurations for the >11/725 and 11/730 it looks as if the 11/730 would hold at least a couple >more MB. Officially the 730 only holds 5 Mbytes. I don't know if there's any way of extending this. Remember also that the RC25, if the "fixed" platter is used as a system disk, can be spun down to change the removable data platter. The host OS needs to be aware that its system disk might be spun down, and it has to be patient enough to wait for it to come back up. The PDP-11 OS's know how to do this, and the last version of VMS to officially support the 725 with RC25 knows how to do this, but I don't know if they included support for this in the more modern versions of VMS. My 11/730, when I had it, ran VMS 4.6. >I'm wondering if it wouldn't be possible to replace the RC25 with a 3rd >Party SCSI controller. Though I'm not aware of any 11/725's in anyones >collection. I know of a 11/725 still running a monitoring/logging application at a nuclear power plant, booting from a RC25 under VMS 4.2. And yes, they could upgrade to a SCSI drive and Unibus SCSI host adapter. -- Tim Shoppa Email: shoppa(a)trailing-edge.com Trailing Edge Technology WWW: http://www.trailing-edge.com/ 7328 Bradley Blvd Voice: 301-767-5917 Bethesda, MD, USA 20817 Fax: 301-767-5927

24 years, 7 months

VMS 4.7 was VAXstation 3100 history (Was ... different)

by CLASSICCMP＠trailing-edge.com

>Well.... I dont know about those "minimum RAM requirements"... I've been >getting away with running V7.2 on a VS3100/38 with 4 megs of RAM and a >single RZ23 in it for a bit... can't do much with it though :) I'll be *really* impressed if you also tell us that you're running DECWindows in that tiny of a configuration :-). Keep in mind that "unsupported" doesn't mean "won't work". It just means "it might work, it might not, you can try it if you want, but if you have any problems don't blame us"! -- Tim Shoppa Email: shoppa(a)trailing-edge.com Trailing Edge Technology WWW: http://www.trailing-edge.com/ 7328 Bradley Blvd Voice: 301-767-5917 Bethesda, MD, USA 20817 Fax: 301-767-5927

24 years, 7 months

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test-drb December 1999