I'm actually thinking about buying a D510 motherboard, not a Netbook. The Intel motherboard includes a Gigabit NIC, and a PCI slot. I'd probably put an Intel 10/100 NIC in the PCI slot specifically for SIMH. With a couple Seagate 500GB SATA drives, Optical Drive, and 2-4GB RAM I think I'd have a fairly usable 'low-power' system. Though the drives and 2nd NIC would definitely bump up the power it would pull.
I would hope to see performance somewhere between my MicroVAX III and VAXstation 4000/vlc. Actually that brings up another question, how RAM intensive is SIMH? If I can do this under OpenBSD, I know it's very light on its memory usage. Zane On Wed, 9 Jun 2010, Hittner, David T (IS) wrote: > Be careful if you are using the wireless NIC of the netbook. Read the > SIMH FAQ about wireless Ethernet, particularly the info about Decnet > Phase IV compatibility, and be prepared to adjust cluster timeouts as > required; significant delays can occur during wireless disruptions. > > As to VUPs, the netbook can't be worse than a VAX-780 :-) > > Dave > >> -----Original Message----- >> From: [email protected] [mailto:simh-boun...@trailing- >> edge.com] On Behalf Of Zane H. Healy >> Sent: Wednesday, June 09, 2010 4:56 PM >> To: Marc Chametzky >> Cc: [email protected] >> Subject: Re: [Simh] Questions on SIMH VAX >> >> >> >> On Wed, 9 Jun 2010, Marc Chametzky wrote: >> >>> I can give some input from my experience on a few of these things... >> >> Thank you, it tends to indicate what I am considering is doable. >> >>>> Does anyone happen to know what kind of performance this would > give? >>>> How many VUPS would such a setup offer? >>> >>> I don't know how it would perform on your system as I'm not familiar >> with the >>> performance characteristics of the Atom processor. On my SIMH setup, >> which is >>> a virtualized Linux system running on an ESXi host using an AMD >> Phenom II X3 >>> 710 processor (limited to 2 GHz on a single processor), I get 13 > VUPs >> (using >>> SRI's PT_VAX.EXE). >> >> I've no idea what that CPU is, as I'm not familiar with AMD products, >> but a >> quick google would seem to indicate that's more than 3x the CPU power. >> Of >> course the Atom isn't designed for this sort of workload. Even if it >> isn't >> practical to run WASD, I could still do pretty much everything else on >> SIMH. >> >>> I will note that I got better idle handling once I started running >> DECnet. I >>> think that SIMH dealt better when there was some occasional activity >> (such as >>> handling network packets) rather than a truly idle system. >> >> It would definitely be running DECnet Phase IV, as I'd want to be able >> to >> talk to my PDP-11's, and have it on HECnet. >> >>>> I assume that Volume Shadowing is supported, so that I can place >> disk >>>> images >>>> on seperate physical hard drives and turn on shadowing? >>> >>> That should work just fine. There might be an issue with SIMH > working >>> properly if one of its virtual drive volumes becoming unavailable, >> though, so >>> an advantage of volume shadowing (system reliability) probably goes >> away. >> >> My thought was to have redundancy should I loose a physical HD. Which >> is >> why I use Volume Shadowing on my Alpha. >> >>>> What about >>>> clustering with real physical VMS systems if I desire it? >>> >>> I've done it in the past using SIMH VAX clustered with a hardware >> Alpha box. >>> It worked just fine. >> >> Perfect, as if I were to use it, I'd want to be able to cluster with a >> MicroVAX III and an Alpha at a minimum. >> >>>> How large of >>>> virtual disks does SIMH support? >>> >>> Big. :-) Using a command like "set rqb0 rauser=N" in vax.ini, I'm >> able to use >>> large drives including one that's 15 GB. I did need to tweak my >> sources in >>> order to get large volumes working properly at some point in the > past >> (an >>> issue with the large file APIs), but that was some time ago and I >> don't >>> recall whether it was still needed with the current sources. >> >> My Alpha currently runs with 3 36GB drives, and 1 50GB drive. Though > I >> could trim down the required space. >> >> Zane >> >> >> _______________________________________________ >> Simh mailing list >> [email protected] >> http://mailman.trailing-edge.com/mailman/listinfo/simh > _______________________________________________ Simh mailing list [email protected] http://mailman.trailing-edge.com/mailman/listinfo/simh
