On 13 Jan 2013, at 16:04, Brian Schenkenberger, VAXman- wrote:
...but I don't BUY systems. ;)
You KNOW what I mean ;)
I have. There's quite an air volume but I would hessitate to call it a
toaster oven.
Okay try this comparison. Stick your hand behind a normal modern Intel PC. Now stick it behind a rx2600/zx6000. See what I mean. It's hot in comparison. It might be the flow is slower and hotter in a zx6000 but you can see where all that electrical energy is ending up :)
I'm not saying Itanium is inefficient as it has a LOT of raw CPU horsepower per Watt but I anm skeptical as to wether it's more efficient than a late Alpha on a per-MHz comparison. Both CPUs get very hot in operation. Both have a LOT of raw power for that draw and per MHz. It's not like comparing a Pentium 4 and an Alpha, for example.
I'm not in Florida. ;)
No, I know, You're in NY/NJ, I know what 'Sandy' was, 2 of my best friends live in Hoboken. I was using Florida as a comparison as a 'it's hot there most of the year' place. If you'd prefer I use Texas or Louisiana I can do ;)
With regards to performance, the VUPS.COM benchmark (which is probably wildly inaccurate on fast non-VAX hardware) considers my zx6000 (472 VUPs) to be 3 times as fast as my 500Mhz PWS500au (161 VUPs). Even so, that's probably one CPU only on the zx6000 so it's probably 6x faster if you multi-thread. Like I said, though, it's not that accurate on a fast VAX, I doubt it's accurate at all on non-VAX CPUs ;)
--
Mark Benson
http://DECtec.info
Twitter: @DECtecInfo
HECnet: STAR69::MARK
Online Resource & Mailing List for DEC Enthusiasts.
On 1/12/2013 4:02 PM, Peter Lothberg wrote:
I'm concurrently attacking it from three different directions: ssh,
snmp and mop remote console.
First one done wins. :)
You only have one alternative that works across all the cisco boxes in
HECnet, SNMP.
As I made a a image that works on 2500 with 8M flash and 16M ram,
there is not room for SSH....
Can you try MOP RC?
How would you get on the local Ethnernet?
-P
Mark Benson <md.benson at gmail.com> writes:
On 13 Jan 2013, at 15:26, Brian Schenkenberger, VAXman- wrote:
2x rx2600 1.5GHz/6.0MB with dual PSU, 16GB RAM run here in my =
basement. > They are, for their size, the fan-noisiest of the boxes.=20
The trick with those is to buy zx6000s - they have a quiet fan mod in =
them which makes them much quieter. I think the zx6000 has a side vent =
in it that the rx2600 lacks too maybe? It's in the lid behind the CPUs.
= The only problem is they are also designed to run stood vertically in
= pedestal config, not laid down in rack-ount mode. Mine is a zx6000
with = no skin. I bought (from HP!) a metal pedestal stand but don't
have any = other casings for it at all (including a front panel).
...but I don't BUY systems. ;)
To be fair, it's not surprising the rx2600 is loud when you look at what
= it's cooling. Have you stood behind one when it's running? It's like =
sticking your head in a toaster oven!!
I have. There's quite an air volume but I would hessitate to call it a
toaster oven.
Also, for what it's worth, I used to have 24GB of RAM and a (useless for
= VMS) FireGL AGP card in my zx6000 and it used about and extra 150W.
the = RAM seems to suck up a LOT of power. I knocked back to 8GB which
is = about what most consider minimum for a dual Itanium. Notably I
removed a = CPU from it and that only scrubbed about 40W off the power
at idle, but = I guess it uses a LOT more at full usage.
FWIW, it was incredibly quiet and COLD in my basement for about 10 =
days > late Oct. and early Nov. post Sandy without all of the space
heaters.
I have just the opposite issue. Small room with a LOT of gear in that I
= also have to sleep in comfortably. On COLD days it's not an issue. I =
just rely on my Mac Pro (2x dual-core Xeons and 6GB FB-DIMM RAM) to keep
= things warm. On hot days I have to have fan running and use my
MacBook = Air as it's too hot to do anything else! This is in the UK
too, not = Florida...
I'm not in Florida. ;)
--
VAXman- A Bored Certified VMS Kernel Mode Hacker VAXman(at)TMESIS(dot)ORG
Well I speak to machines with the voice of humanity.
For clarity, for those confused by it being a 1U DS20, it's probably one
of these beasties, a DS20L. I DREAD to think how loud the fans are and
the torrent of hot air that comes out of the back! ;)
http://mattst88.com/computers/ds20l/
Correct. This is the box.
If you are looking for new and shiny you can run 8.4 on it (if you can =
get an ISO), or 8.3 from the Hobbyist CD with the Hobbyist license.
Anyone that has 8.4 and Multinet and knew how to deal licences?
--P
On 13 Jan 2013, at 15:26, Brian Schenkenberger, VAXman- wrote:
2x rx2600 1.5GHz/6.0MB with dual PSU, 16GB RAM run here in my basement.
They are, for their size, the fan-noisiest of the boxes.
The trick with those is to buy zx6000s - they have a quiet fan mod in them which makes them much quieter. I think the zx6000 has a side vent in it that the rx2600 lacks too maybe? It's in the lid behind the CPUs. The only problem is they are also designed to run stood vertically in pedestal config, not laid down in rack-ount mode. Mine is a zx6000 with no skin. I bought (from HP!) a metal pedestal stand but don't have any other casings for it at all (including a front panel).
To be fair, it's not surprising the rx2600 is loud when you look at what it's cooling. Have you stood behind one when it's running? It's like sticking your head in a toaster oven!!
Also, for what it's worth, I used to have 24GB of RAM and a (useless for VMS) FireGL AGP card in my zx6000 and it used about and extra 150W. the RAM seems to suck up a LOT of power. I knocked back to 8GB which is about what most consider minimum for a dual Itanium. Notably I removed a CPU from it and that only scrubbed about 40W off the power at idle, but I guess it uses a LOT more at full usage.
FWIW, it was incredibly quiet and COLD in my basement for about 10 days
late Oct. and early Nov. post Sandy without all of the space heaters.
I have just the opposite issue. Small room with a LOT of gear in that I also have to sleep in comfortably. On COLD days it's not an issue. I just rely on my Mac Pro (2x dual-core Xeons and 6GB FB-DIMM RAM) to keep things warm. On hot days I have to have fan running and use my MacBook Air as it's too hot to do anything else! This is in the UK too, not Florida...
--
Mark Benson
http://DECtec.info
Twitter: @DECtecInfo
HECnet: STAR69::MARK
Online Resource & Mailing List for DEC Enthusiasts.
Mark Benson <md.benson at gmail.com> writes:
On 13 Jan 2013, at 14:17, Brian Schenkenberger, VAXman- wrote:
I'll have to plug in my watt meter and see just how much my Itaniums =
do > actually consume; however, bang (CPU speed) for the buck (power
use), = I > would wager that the Itanium is better.
As a ready reckoner, 2 1.3GHz/3.0MB Itanium2s with 1 PSU, 8GB of RAM and
= no graphics board runs at over 250W at IDLE. Under loa you are looking
= into the region of 4-500W. They chuck out a lot of heat too. Not =
something you want to try running in a confined space on a summers day!
2x rx2600 1.5GHz/6.0MB with dual PSU, 16GB RAM run here in my basement.
They are, for their size, the fan-noisiest of the boxes. I have a rack
with 2xDS20Es (dual PSU) and 2xDS40s (triple) which make significantly
more noise at first power up but then the volume subsides. There are a
number of other things running here as well. In winter, my basement is
a comfy 76F (25C) without air. In the summer, unless some appreciably
long heat-wave hits, these run and don't tax the 3ton air-conditioner.
The electric bill, of course, heats me up when it arrives.
FWIW, it was incredibly quiet and COLD in my basement for about 10 days
late Oct. and early Nov. post Sandy without all of the space heaters.
--
VAXman- A Bored Certified VMS Kernel Mode Hacker VAXman(at)TMESIS(dot)ORG
Well I speak to machines with the voice of humanity.
On 13 Jan 2013, at 14:17, Brian Schenkenberger, VAXman- wrote:
I'll have to plug in my watt meter and see just how much my Itaniums do
actually consume; however, bang (CPU speed) for the buck (power use), I
would wager that the Itanium is better.
As a ready reckoner, 2 1.3GHz/3.0MB Itanium2s with 1 PSU, 8GB of RAM and no graphics board runs at over 250W at IDLE. Under loa you are looking into the region of 4-500W. They chuck out a lot of heat too. Not something you want to try running in a confined space on a summers day!
--
Mark Benson
http://DECtec.info
Twitter: @DECtecInfo
HECnet: STAR69::MARK
Online Resource & Mailing List for DEC Enthusiasts.
Oleg Safiullin <form at pdp-11.org.ru> writes:
H Vlems wrote:
Brian,
I've two Adaptec controllers:
- aha-2940/w/2940uw
- aha-2944uw
They're not supported by VMS (IIRC). Not supported doesn't mean won't work.
Is there a way to let VMS use them?
Hans
I'm using aha-2940uw adapter on my DS10.
You need to add the following lines to SYS$SYSTEM:SYS$USER_CONFIG.DAT:
--- cut here ---
device = "Adaptec AHA-2940UW"
name = PK
driver = sys$pkadriver.exe
adapter = PCI
id = 0x81789004
boot_class = DK
boot_flags = HW_CTRL_LTR, UNIT_0
flags = SCSI, PORT, BOOT
end_device
There you go, replete with the data for SYS$USER_CONFIG.DAT.
Also I have patched OVMS 8.4 CD which supports this adapter.
???
--
VAXman- A Bored Certified VMS Kernel Mode Hacker VAXman(at)TMESIS(dot)ORG
Well I speak to machines with the voice of humanity.
"H Vlems" <hvlems at zonnet.nl> writes:
Brian, I've two Adaptec controllers: - aha-2940/w/2940uw - aha-2944uw
They're not supported by VMS (IIRC). Not supported doesn't mean won't
work. Is there a way to let VMS use them? Hans
First, plug them in and see. If VMS can detect them, it will configure
the driver for and use them. You may need to add some device specific-
ation to SYS$SYSTEM:SYS$USER_CONFIG.DAT for this to happen. It will all
depend upon what chips are used on those controller. DEC did rebrand a
few Adaptec devices as well.
--
VAXman- A Bored Certified VMS Kernel Mode Hacker VAXman(at)TMESIS(dot)ORG
Well I speak to machines with the voice of humanity.
Stuart Martin <wavey at wavey.org> writes:
I couldn't be happier with the DS10L's performance (mine is the one
Rob's been using). It does make a little too much noise, but even the
missus has become used to it being on the whole time in our study. It
also running with a shadowset on the system disk, which does noticeably
slow it down.
I don't find the DS10L I have here to be too onerously loud. It's extremely
quiet compared to some other kit here.
A shadow set system disk should not slow things down. What disks have
you combined to form this shadow set? If you want to slow it down, put
the system on an IDE which the DS10L provides support for!!!
I'd like an itanium, but I haven't heard of one which is reasonable
enough on the power front to warrant being on for extended periods of
time. The DS10L is around 180W, which is not *too* bad.
I'll have to plug in my watt meter and see just how much my Itaniums do
actually consume; however, bang (CPU speed) for the buck (power use), I
would wager that the Itanium is better.
--
VAXman- A Bored Certified VMS Kernel Mode Hacker VAXman(at)TMESIS(dot)ORG
Well I speak to machines with the voice of humanity.
