test-drb November 2001

test-drb@ccmp.vtda.org

247 participants
886 discussions

by jss＠subatomix.com

What kind of equipment/strategy do we use to lift heavy equipment into place in a rack so that it can be fastened to the rack? Is there some jack or hydraulic lift that can be used? Please tell me that the best method doesn't begin with "create a list of muscular friends". -- Jeffrey S. Sharp jss(a)subatomix.com

22 years, 8 months

FORTH for TRS Model 100

by dan＠ekoan.com

At 10:22 PM 11/12/01 -0500, you wrote: >I have AMPI (Amerifcan Micro Products, Inc.) FORTH with plastic case, >manual, and cassette tape (condition unknown) for the TRS Model 100. >Can anyone use this? I could! Cheers, Dan

22 years, 8 months

FORTH for TRS Model 100

by paul＠orchard.wccnet.org

I have AMPI (Amerifcan Micro Products, Inc.) FORTH with plastic case, manual, and cassette tape (condition unknown) for the TRS Model 100. Can anyone use this? Paul R. Santa-Maria Monroe, Michigan USA

22 years, 8 months

VAX (Was: Cromemco landmarks)

by ajp166＠bellatlantic.net

Carlos, Both have the FPU. It was optional only in the sense that it was not required for a minimal cpu. Allison -----Original Message----- From: Carlos Murillo <cmurillo(a)emtelsa.multi.net.co> To: classiccmp(a)classiccmp.org <classiccmp(a)classiccmp.org> Date: Sunday, November 11, 2001 11:16 PM Subject: Re: VAX (Was: Cromemco landmarks) >At 03:02 AM 11/12/01 +0100, Iggy wrote: >>Carlos Murillo skrev: >>>Didn't the uVax II implement some of the original VAX instructions >>>with emulation? I always wondered what the VUP rating would have >>>been were they not emulated. >> >>in order to reduce the architecture to a single (integer) chip, only 175 of >>the 304 instructions (and 6 of 14 native data types) were implemented >(through >>microcode), while the rest were emulated - this subset included 98% of >>instructions in a typical program. The optional FPU implemented 70 >>instructions and 3 VAX data types, which was another 1.7% of VAX >instructions. >>All remaining VAX instructions were only used 0.2% of the time, and this >>allowed MicroVAX designs to eventually exceed the speed of full VAX >>implementations > >Aha! So, if I were doing numerical linear algebra in a uVaxII w/o the optional >FPU, I could expect performance to be badly hit with respect to the 0.9 VUP >rating. > >(FYI, I always tend to benchmark machines using float performance, >because that's the kind of thing that I do for a living. I look at integer >performance only as something that has an impact on sparse linear algebra >blocks, as opposed to dense system methods). > >How do I know if my Vaxstation 2000 has the optional FPU? What is >its model number? > >What about the Vaxstation 4000/60? Does it have a built-in FPU? > >carlos. > >-------------------------------------------------------------- >Carlos E. Murillo-Sanchez carlos_murillo(a)nospammers.ieee.org > >

22 years, 8 months

Lifting stuff into racks

by CLASSICCMP＠enterprise.trailing-edge.com

For heavy things that *have* to be at the top of a 6-foot rack (like a front-loading tape drive), my recipe is: 1. Put the rack down on its side. 2. Put the tape drive down on its side, on top of some blocks of wood to align the holes with the rack. 3. Put similar-height blocks of wood in the rack. 4. Slide tape drive into rack, bolt it in. 5. Tilt rack up. Admittedly, step #5 there may not be easy, but at least as the rack stands more straight up you do less *lifting* and more *pushing*. Incredibly important thing when doing #5: make sure the rack isn't going to roll out away from you as you stand it up! Tim.

22 years, 8 months

New acquisitions: Suns, room

by mcguire＠neurotica.com

On November 12, Iggy Drougge wrote: > >> Well, I won't totally eliminate the possibility, but I think I'm going to > >> have somewhat different criteria from now on. So... does anyone here know > >> any single, female, pretty, smart computer geeks/nerds, someone that would > >> think of "writing a compiler" as spending time together? > > >Funny, my checklist reads remarkably similar. > > It would be a wonderful world if more computer geeks were homosexual. I think it would be an even more wonderful world if people could be comfortable enough with their sexual orientation (whatever it may be) to not have to drag it into EVERY UNRELATED CONVERSATION! (not that this happens here very often, but I just escaped from an area in which this sort of behavior was very much the norm) -Dave -- Dave McGuire St. Petersburg, FL

22 years, 8 months

WordPerfect <v5.2

by donm＠cts.com

Earlier in my reading the list today, I noted in passing an email by someone who was looking for an early version of WP - in the 3.x IIRC. If v4.2 would be of any use to you, please email me off list and it is yours for postage fees from 92037. - don

22 years, 8 months

RA81 problems, someone with a service manual can help?

by gunther＠aurora.regenstrief.org

Hi, today I moved the RA81 from the garage down into the Laundry/Computer- Room in the basement. Thanks to my straps and a hydraulic car jack- stand I was actually able to install it in my TU81+ cabinet without breaking my back or getting squished underneath the drive :-). It looks really cool in the TU81 rack. I powered it up and though no lights at these push-buttons come on, I could test it quite far. Thanks to Will Kranz' abridged service manual http://www.conknet.com/~w_kranz/pdp11/RA81.HTM I knew what I could do with the terminal and that CTRL-C will get it going (not CTRL-Z like with the TU81+) and after running diagnostics once, I could actually spin up the drive. Just seeking seems not to work. Spun up diagnostigs gets the error terminal plugged in, 300 b/s, 8 bit, 1 stop no parity ? ^C CTRL-C gets a prompt RA81> EUR^C RA81> EUR turn serial port to 7 bit instead of 8 removes the junk RA81> RA81> RUN DIAGNOSTICS %RA81-COMPLETED TEST:DIAG SUBTEST:02 %RA81-COMPLETED TEST:DIAG SUBTEST:01 %RA81-COMPLETED TEST:DIAG SUBTEST:07 %RA81-COMPLETED TEST:DIAG SUBTEST:08 %RA81-COMPLETED TEST:DIAG SUBTEST:0B %RA81-COMPLETED TEST:DIAG SUBTEST:03 %RA81-COMPLETED TEST:DIAG SUBTEST:0D %RA81-COMPLETED TEST:DIAG SUBTEST:19 %RA81-COMPLETED TEST:DIAG SUBTEST:1B %RA81-COMPLETED TEST:DIAG SUBTEST:1C %RA81-COMPLETED TEST:DIAG SUBTEST:1D %RA81-COMPLETED TEST:DIAG SUBTEST:1E %RA81-COMPLETED TEST:DIAG SUBTEST:1F %RA81-COMPLETED TEST:DIAG SUBTEST:20 this was diagnostics spun down, everything successful! Now I push the RUN/STOP switch in and there comes the sound of the drive spinning up, really impressive! RA81> FRONT PANEL FUNCTION IN PROGRESS then this message comes and a long time nothing, finally: %RA81-TEST: SUBTEST:1B ERROR:50 UNIT:001 %RA81-FRU-SLAVE RESPONSE FAIL- SERVO,MICRO not knowing what else to do I do diagnostics again in spun up mode RA81> RUN DIAG %RA81-COMPLETED TEST:DIAG SUBTEST:02 %RA81-COMPLETED TEST:DIAG SUBTEST:01 %RA81-COMPLETED TEST:DIAG SUBTEST:07 %RA81-COMPLETED TEST:DIAG SUBTEST:08 %RA81-COMPLETED TEST:DIAG SUBTEST:0B %RA81-COMPLETED TEST:DIAG SUBTEST:03 %RA81-COMPLETED TEST:DIAG SUBTEST:19 %RA81-TEST:DIAG SUBTEST:1B ERROR:50 UNIT:001 %RA81-FRU-SLAVE RESPONSE FAIL- SERVO,MICRO RA81> RUN SEEK ENDING CYLINDER? 1000 GROUP? 10 OPERATION FAILED RA81> RUN RECAL %RA81-TEST:RECA SUBTEST:2A ERROR:50 UNIT:001 %RA81-FRU-SLAVE RESPONSE FAIL- SERVO,MICRO At no time I heard any seeking activity. Will's service manual page says this: > D.28 TEST 1B (SERVO PLO TEST) > This test checks the servo module PLO circuitry. > Errors associated with this test are: 50, 7B, C6, FO to FE. I don't see any system fault code on the led bits in the front of the controller board with the hood open after the E7 "test in progress" status byte is cleared. (So I do see the blinkenlights, just there is no fault code besides the error message on the service terminal. Error 50: > 50 Ensure that positioner motor lock is in the unlock > position. If OK, then replace servo module, > microprocessor module So, sounds like there is once chance for me: to find this "positioner motor lock" and move it into the unlock position. However, I have no idea how to do that? It sounds reasonable that this thing may be locked for transport, I sure hope so, because otherwise all my moving and installing this thing would have been in vain. any help with this is appreciated. Not that I depend on the RA81 for operation, but I've got it and I believe in having a VAX collection with 100% functional stuff. regards -Gunther PS: Anyone having dead RA81's for parts? Anyone has spare SDI bulkheads? I need one or two 2- or 4- port bulkheads for the RA disks outside the SA600 cabinet. -- Gunther Schadow, M.D., Ph.D. gschadow(a)regenstrief.org Medical Information Scientist Regenstrief Institute for Health Care Adjunct Assistant Professor Indiana University School of Medicine tel:1(317)630-7960 http://aurora.regenstrief.org

22 years, 8 months

Lifting stuff into racks

by Innfogra＠aol.com

I have successfully used automotive floor jacks. I use a sheet of wood on top of the swivel part, mainly to avoid marking the drive. Once it is loose it takes two people to stabilize it (they are very awkward) and a third to move the jack. This can give you good height adjustment. For several years I had a transmission jack which worked the best. It dealt with the center of gravity better. Of course these only work in the bottom half of the rack and with rails. I had several roll around tables of different heights that worked for dealing with drives in the top of the equipment. We could generally use wood blocks to get the drives to the right heights. Most of those were tape drives and tended to be more awkward and not on rails. Most of the time I have used a pallet jack with wooden blocks. They roll real easy and have an easy height adjustment. Makes it easy to slide the drive onto a pallet after removal. You can block up one fork and balance the drive on that if you can get one fork inside the cabinet. I also have a small chain hoist that I got when I bought a JEOL electron microscope. However I rarely use it for lifting drives. Paxton Astoria, OR

22 years, 8 months

Lifting stuff into racks

by pete＠dunnington.u-net.com

On Nov 12, 8:30, Ethan Dicks wrote: > If you've ever seen a rack with three RA81 drives in it, you wouldn't > suggest that method - they are well over 100lbs each, IIRC. Yes, well over. > Unfortunately, most of the big stuff I load into racks (BA-11s, RL02s, > RA-81s) does involve using a couple of muscular friends. Little stuff > like BA-23s, RX02s, PDP-8/a boxes, etc., I do myself. Me too... > I think the heaviest thing I put in a rack by myself was a PDP-8/i I'd > removed to get the rack up to my bedroom when I was in high school. Since > it's so low in the rack and the rails are so large, I remember balancing > it on my foot to lift it up the few inches it needed. Still took several > tries to line it all up. That's what I've done for my RL02s, a few times. I can *just* manage one on my own. The heavier drives need at least two people, as does a BA11-K. > Moving the rack by myself was a treat - nearly > killed me... I stood *in* the H-960, with my feet sticking out the square > hole for cable access, then hopped it up the stairs one-at-a-time. That must have been quite a sight! I've just moved one myself, but on the flat (which is probably cheating ;-) even though it is rather full). They're heavy strong racks -- mine has an 11/40 right in the top, and the rest is so heavy that it doesn't topple or sway, even with the 11/40 fully extended out the front, and no extra extension legs. > I do *not* recommend anyone else try it. Indeed not! -- Pete Peter Turnbull Network Manager University of York

22 years, 8 months

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test-drb November 2001