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15580 discussions

by wilson＠dbit.com

From: Johnny Billquist <bqt at softjar.se> >I'm curious on exactly how a DEUNA/DELUA works in a KS-10. Does anyone >know? Does it do 8-bit-byte DMA to the 18-bit memory, leaving the top >two bits alone. Or does it only work if it do word DMA (would be >strange, as the controller itself can send and receive odd byte length >ethernet packets). This is what the BLTBU and BLTUB instructions are for in the later microcode (converting between sensible PDP-10 memory and the mishmash you get as a result of DMA through the UBA to a 16-bit peripheral). Since a DELUA is not 18-bit-data-aware, it ignores the high two bits of each 18-bit halfword when doing DMA. >Is there some potential problem with regards to a PDP-11, which have two >parity bits for data, which are used for actual data on a KS? (If I >remember right.) IIRC you're OK as long as you don't set those bits in memory that the DELUA will read. I feel like the Unibus documentation changed at some point, between whether PA/PB are actual parity bits (I think that's what the very early doc said), vs. being parity *error* bits (and I think PB isn't even really used -- PA asserted means there's been a parity error detected in the current DATI/DATIP). I could be wrong about all of this. John Wilson D Bit

10 years, 4 months

Last month's Ebay auction for DEC VAX Ultrix, NETBSD software, TK50 cassettes, DECDirect Disks

by jim＠deitygraveyard.com

With all the recent Ultrix talk I guess it's safe to assume nobody here won this auction last month: http://www.ebay.com/itm/321694487216 . Right? (I think) I downloaded an Ultrix 4.5 CD a while back so I'm really hoping to get the Software Products Library CD. Among other things I want DECNET-Plus. And I want the Documentation CDs. And... I really wish I had gotten in on that auction. :( Jim

10 years, 4 months

ULTRIX DECNET LMF?

by sampsa＠mac.com

Any of you happen to know what the correct LMF code for ULTRIX-32 4.0 DECNET happens to be? I know a guy who knows a guy with pakgen *cough* so I could get the necessary licenses but we don't know what the product codes are.... Sampsa

10 years, 4 months

Ultrix

by mcguire＠neurotica.com

By the way, since we're discussing Ultrix...I just remembered that I have 4.3 and 4.4 CDROMs for VAX. I just made images of them. Let me know if you want 'em.. -Dave -- Dave McGuire, AK4HZ/3 New Kensington, PA

10 years, 4 months

VCF East

by system＠TMESIS.COM

Steve Davidson <steve at davidson.net> writes: >All, > >For those who did not attend VCF East you missed a great time! On >Saturday, the keynote speaker was none other than Brian Kernighan. You >really missed a treat - right Dave! > >Next year, I plan to bring even more stuff (not nearly as much as Dave >did) but more than this year. Dave's island of equipment included the >following: > >PDP-8 >PDP-11/34 >PDP-11/44 >DECserver-200 >multiple terminals >I'm sure I have forgotten something... > >I added: > >VAXstation 4000/60 >DEChub-90 backplane with a DECserver-90TL and a 16-port DEChub >VT320 >a gateway (actually bridge) machine to connect to HECnet only the link >was pathetic > >Brian (aka VAXman) added: > >VAXstation 4000/30 (aka VLC) > >In addition to the "island" Dave had other "exhibits" that I will defer >to Dave for discussion. > >Next year we NEED more stuff! This is the official challenge to anyone >on the East coast. We want to see many more of you. If is is DEC it is >needed. > >I would also like to personally add my thanks to Dave and Brian for >making this such a treat. Dave is nuts (in a good way) and very >generous. Brian was there for me when my brain could not content with >the sheer volume of noise - helping me to configure the DECservers and >dealing with my fat fingering the keyboard and the license management >facility (LMF). For a while we were Frick and Frack but we managed to >get it together. Thanks guys! 'Twas great to meet you Steve. Dave has often spoken of creating an uber-cluster at VCF East. Let's do it! As for me, I reside about 12 miles away, so it's no issue for me to get to InfoAge. In the later '80s and early '90s, I provided VMS support at Camp Evans when the Army was still in active occupation of the site. I would love to see a huge DEC presence at VCF next year; especially, VMS kit. I also, albeit Alpha and Itanium are not vintage in the mindset of those running VCF, would love to demonstrate the seamless integration of VMScluster across the different architectures. But, regardless, I would very much contribute DEC kit for next year's VCF. -- VAXman- A Bored Certified VMS Kernel Mode Hacker VAXman(at)TMESIS(dot)ORG I speak to machines with the voice of humanity.

10 years, 4 months

VCF East

by system＠TMESIS.COM

Dave McGuire <mcguire at neurotica.com> writes: >On 04/24/2015 09:35 AM, Steve Davidson wrote: >> I think we could get away with adding Alpha circa 92' - after all it was STILL DEC at that point. > > The way to get away with it would be to show real relevance. I don't >consider Alphas to be "vintage" in the least, but showing full >interoperability between related machines that evolved along a family >line going back more than thirty years is, in my view, a highl relevant >exhibit. > > Further, keep in mind that a lot of this is marketing. It's marketing >for the museum, and for our "hobby" (using the term very loosely). An >exhibit as massive as the one we've got in mind will deeply impress a >lot of people. ... and it may deeply depress the local power grid. ;) -- VAXman- A Bored Certified VMS Kernel Mode Hacker VAXman(at)TMESIS(dot)ORG I speak to machines with the voice of humanity.

10 years, 4 months

VCF East

by system＠TMESIS.COM

Steve Davidson <steve at davidson.net> writes: > > >On 04/23/2015 09:34 PM, Johnny Billquist wrote: >> On 2015-04-24 03:21, Sampsa Laine wrote: >>> On 24 Apr 2015, at 02:17, Steve Davidson <steve at davidson.net> wrote: >>> >>>> VAXstation 4000/60 >>>> DEChub-90 backplane with a DECserver-90TL and a 16-port DEChub >>>> VT320 >>>> a gateway (actually bridge) machine to connect to HECnet only the >>>> link was pathetic >>> >>> >>> Next year let me know, I've got a bridge sitting on a gigabit pipe >>> doing nothing. >> >> I don't think that will help, unless that pipe happens to have one end >> somewhere on the US east coast I suspect... >> >> Update itself sits on even more bandwidth. Not helping either... >> >> Johnny >> >The issues were local to the VCF East site. Everyone had issues with >it. Dave is working this one for next year. The other end is my site >with plenty of bandwidth and even more coming. It will be a 100 megs >down / 40 megs up shortly. I have other passions outside of computing too. One is music. For more than a decade, I've been hosting the Aural Moon Progressive Rock internet radio site and doing many/most of the technical efforts to keep it going. My title there is: Janitorial Services and Restroom Supplies; as I keep it all neat and tidy, and free of the script kiddies and forum SPAMmers. Anyway, a Philadelphia FM DJ has a show which Aural Moon rebroadcasts on Saturday evenings and replays on Tuesday. He has also, as an Aural Moon exclusive, done live concert feeds. For this, I've contacted the local cable internet providers and have had cable internet drops installed for the duration of these events -- typically, weekends. With a little bit of preparation, I've had sufficient bandwidth via these carriers for the up-feed to Aural Moon. The installation and fee for the last three-day event's internet was less then $100!!! I have a 4U portable rack with a Cisco router, APC UPS and sundry other bits I've needed for doing remote site live gigs. Think about it! I don't know who is providing internet to InfoAge but I've found it to be slow and unreliable; at least, the wireless on the campus seems to be. -- VAXman- A Bored Certified VMS Kernel Mode Hacker VAXman(at)TMESIS(dot)ORG I speak to machines with the voice of humanity.

10 years, 4 months

VCF East

by system＠TMESIS.COM

Steve Davidson <steve at davidson.net> writes: >AGENA:: (19.11) is part of the STARS:: cluster. All of the nodes have >the names of stars. Ask Dave (or Brian) what the message from >SYLOGIN.COM said... :-) :) Star and Starlet; I know it well. ;) FYI, I used to have a Sheltie. Her registered name was Starlet-dot.MLB. We called her Starlet for short. >The DECserver-90TL was brought up by Brian and myself. The >DECserver-200 was brought up by Dave and myself after Dave was able to >do a hardware reset on the unit. Prior to that it was VERY confused. >We spent a great deal of time trying to get files off the USB stick, in >fact much more time than anything else. The ISL configuration was easy >(as usual with DEC). The DECserver-90TL came right up - no issues. >Everything was loaded from AGENA::. Brian's machine was a "hot" backup >should we have needed it. The beauty of the 90TL was not only LAT but >telnet. Unfortunately we did not have time to make use of it. > >Also... I did manage to get our wireless link up long enough for both >Dave and I to VMS/Phone Fred Coffee in Ohio. The MACbook did the best >job holding the link. Far better than the Linux or Windows system could >manage. Next year it will be a dedicated NetBSD platform just like what >I use in my DEClab to support the bridge. I would like to experiment >with using LAT just like we do today between my network and the rest of >the backbone. If the link is robust enough then MOM/MOP might also be a >possibility. Imagine... DECservers be loaded "remotely"! I'll just bring a DEChub-900 and DECserver-90Ms for you next year. Also, some DECswitch-90FE for 100MB connects to the 900 hub. -- VAXman- A Bored Certified VMS Kernel Mode Hacker VAXman(at)TMESIS(dot)ORG I speak to machines with the voice of humanity.

10 years, 4 months

VCF East

by system＠TMESIS.COM

Steve Davidson <steve at davidson.net> writes: >I think we could get away with adding Alpha circa 92' - after all it was STI= >LL DEC at that point.=20 I have an ES45 in a short rack with 32GB 4-way interleaved memory, 4 CPUs and it's configured as a Galaxy (2 instances) which is a way cool thing to demo. However, the ES is tagged with Compaq. I do have several DEC "tagged" Alphas. -- VAXman- A Bored Certified VMS Kernel Mode Hacker VAXman(at)TMESIS(dot)ORG I speak to machines with the voice of humanity.

10 years, 4 months

Galaxy question

by system＠TMESIS.COM

"Hans Vlems" <hvlems at zonnet.nl> writes: >Brian, > >do you know whether it is possible to configure a 2-instance galaxy >on an Alpha Server 1200 (or possibly a DS20E)? >That is the only hardware with more than 1 cpu that have. >Hans I had a 1200 (as the d|i|g|i|t|a|l Ultimate Workstation); it died. I have 2 dual CPU DS20Es (and one single CPU DE20E). I've not looked into setting up a Galaxy on ANY dual CPU setup. It seems kind of pointless. You would, more likely than not, have the best chance on the DS20E if it's supported. Give it a try; it couldn't hurt. > -- VAXman- A Bored Certified VMS Kernel Mode Hacker VAXman(at)TMESIS(dot)ORG I speak to machines with the voice of humanity.

10 years, 4 months

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