HECnet

hecnet@lists.dfupdate.se

2 participants
15583 discussions

by fcoffey＠misernet.net

Hi ... With a spat of warm weather approaching I think it's time to refresh some fans in my XP900 system - one of them (front left, closest to the faceplate) was very noisy last evening so I shut things down and broke out the canned air for a cleaning. Now she's quiet for the moment. Looking at the normal sources for made-for-Alpha parts, a fan kit runs $250! Whoa. That's about what I paid for the XP900 and a bit steep for a hobbyist... :( Any specs where I could find out what type of fans they are and just purchase them from the local electronics wholesaler? Size, pins, etc. Thanks, Fred (who is hoping this isn't too offtopic since a good percentage of us here run DEC gear) :) ---- Lets call it for what it is - "legacy" is a term that people use in a polite but derogatory manner to imply that the future direction they prefer is not that which they view as the current direction.

11 years, 8 months

RSTS/E tapes, was Re: [HECnet] two dumb RSX questions

by bob＠jfcl.com

No, the letter suffix is a patch kit identification. So it means release 10.1, patch kit L. That's what I thought. Is patch kit L for 10.1 around anywhere? Thanks, Bob

11 years, 8 months

RSTS/E tapes, was Re: [HECnet] two dumb RSX questions

by Paul_Koning＠Dell.com

No, the letter suffix is a patch kit identification. So it means release 10.1, patch kit L. In the notation used by some other organizations, it would be V10.1.12. paul On Feb 17, 2014, at 8:57 PM, Steve Davidson <jeep at scshome.net> wrote: I am guessing the "Last" version. That is what it says... -Steve -----Original Message----- From: owner-hecnet at Update.UU.SE [mailto:owner-hecnet at Update.UU.SE] On Behalf Of Bob Armstrong Sent: Monday, February 17, 2014 20:44 To: hecnet at Update.UU.SE Subject: RE: RSTS/E tapes, was Re: [HECnet] two dumb RSX questions RSTS/E 10.1L .... "L" ?? What's version 10.1L? Bob

11 years, 8 months

RSTS/E tapes, was Re: [HECnet] two dumb RSX questions

by jeep＠scshome.net

Good question! I have no idea. Paul K may know better. -Steve -----Original Message----- From: owner-hecnet at Update.UU.SE [mailto:owner-hecnet at Update.UU.SE] On Behalf Of Bob Armstrong Sent: Monday, February 17, 2014 21:07 To: hecnet at Update.UU.SE Subject: RE: RSTS/E tapes, was Re: [HECnet] two dumb RSX questions I am guessing the "Last" version. That is what it says... Is this different from just RSTS 10.1? I'm just wondering if there's a later version than plain old 10.1. Thanks, Bob

11 years, 8 months

RSTS/E tapes, was Re: [HECnet] two dumb RSX questions

by bob＠jfcl.com

I am guessing the "Last" version. That is what it says... Is this different from just RSTS 10.1? I'm just wondering if there's a later version than plain old 10.1. Thanks, Bob

11 years, 8 months

RSTS/E tapes, was Re: [HECnet] two dumb RSX questions

by jeep＠scshome.net

I am guessing the "Last" version. That is what it says... -Steve -----Original Message----- From: owner-hecnet at Update.UU.SE [mailto:owner-hecnet at Update.UU.SE] On Behalf Of Bob Armstrong Sent: Monday, February 17, 2014 20:44 To: hecnet at Update.UU.SE Subject: RE: RSTS/E tapes, was Re: [HECnet] two dumb RSX questions RSTS/E 10.1L .... "L" ?? What's version 10.1L? Bob

11 years, 8 months

RSTS/E tapes, was Re: [HECnet] two dumb RSX questions

by bob＠jfcl.com

RSTS/E 10.1L .... "L" ?? What's version 10.1L? Bob

11 years, 8 months

RSTS/E tapes, was Re: [HECnet] two dumb RSX questions

by jeep＠scshome.net

RSTS/E 10.1L will run nicely on a PDP-11/23+. I do it all the time. That is what PLUTO:: is. -Steve -----Original Message----- From: owner-hecnet at Update.UU.SE [mailto:owner-hecnet at Update.UU.SE] On Behalf Of Cory Smelosky Sent: Sunday, February 16, 2014 21:22 To: hecnet at Update.UU.SE Subject: Re: RSTS/E tapes, was Re: [HECnet] two dumb RSX questions On Sun, 16 Feb 2014, Dave McGuire wrote: On 02/16/2014 09:15 PM, Cory Smelosky wrote: What're the requirements for RSTS/E 10.1? I think I managed to fit it in 40M very carefully in simh once... It will not fit on a single RL02, unfortunately. ;) I should get that UDA50, order a replacement drive, pickup the PSU and run it on the 11/44, then. ;) I'll find another solution for the 11/23+. The {11/03,11/23} can be RT-11 or RSX-11M+. It fits nicely on am RM02/RM03 (~70MB), with languages etc. I don't know what the strict requirements are for the OS itself, offhand. Ahh. -Dave -- Cory Smelosky http://gewt.net Personal stuff http://gimme-sympathy.org Projects

11 years, 8 months

RSTS/E tapes, was Re: [HECnet] two dumb RSX questions

by b4＠gewt.net

On Mon, 17 Feb 2014, Paul_Koning at Dell.com wrote: On Feb 16, 2014, at 9:15 PM, Cory Smelosky <b4 at gewt.net> wrote: What're the requirements for RSTS/E 10.1? I think I managed to fit it in 40M very carefully in simh once? 40 MB of disk? That?s almost an RM03 worth of space. 10.1 certainly wants more than older releases, but that sounds like plenty. I seem to recall I got it to fit "comfortably" in 40M in simh. It took a bit of fiddling and I didn't have endless free disk, but I had enough. Come to think of it, my PRO has less than that. As for memory, I think 124 kW (max memory on 18 bit machines) is required. Hey, I have more than that! paul -- Cory Smelosky http://gewt.net Personal stuff http://gimme-sympathy.org Projects

11 years, 8 months

OS X (lack of) tape support, was Re: [HECnet] tape image manipulations...

by clemc＠ccc.com

below (in blue) On Sun, Feb 16, 2014 at 11:00 PM, Dave McGuire <mcguire at neurotica.com> wrote: On 02/16/2014 10:54 PM, John Wilson wrote:> > Does it have any kind of raw SCSI interface, like /dev/sg* on Linux? *BSD, Linux, Darwin, Mach, Tru64, and SVR4/Solaris all used a different ways to splice SCSI support into the kernel I/O system and user namespace [actually I liked the way Tru64 did the best - thank you Fred if you are listening]. > It'd be easy to work around the lack of real tape drivers if so ... I think maybe it did not, but it's been awhile since I messed with OS X. If you note when you run "system info" the parallel SCSI kernel sub-system is still listed in the I/O section. Like Dave, it's been a while since I played with the Mach/Darwin kernel, but last I checked some of the pieces seem to be still there, i.e. a complete eradication of SCSI was not done by Apple. But at the time, I realized it was more than I wanted to mess with it. I have had some of the Darwin sources on my file server, and I'll try to take a peek later to see what is there. The issue I ran into is that since you are pulling the >>kernel<< support in, the support for the driver has to be in the key of that kernel which takes some messing around. The good news is from the user space all of them supported many of the same ioctl's and in particular used the *BSD tape interface - so I agree that in theory it should not be too hard. Clem

11 years, 8 months

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