Nik Hug wrote:
From: "Andre Oppermann"
From running a Colo in a place with ridiculus high electricity engery
costs (Zurich/Switzerland) I can tell you that the energy consuption
of routers/telco (70%) and servers (30%) changes changes significantly
throughout the day. It pretty much follows the tr
From: "Andre Oppermann"
> From running a Colo in a place with ridiculus high electricity engery
> costs (Zurich/Switzerland) I can tell you that the energy consuption
> of routers/telco (70%) and servers (30%) changes changes significantly
> throughout the day. It pretty much follows the traffic
Steven M. Bellovin wrote:
In message <[EMAIL PROTECTED]>, Alex Rubenst
ein writes:
Hello,
I've done quite a bit of studyin power usage and such in datacenters over
the last year or so.
I'm looking for information on energy consumption vs percent utilization. In
other words if your datacenter con
Speaking on Deep Background, the Press Secretary whispered:
>
[KWH meter]
> Instead of doing all this, just buy a Kill-A-Watt meter for about $30, and
> get an instant reading of Watts, Amps, VAs, power factor, and KWH.
Interesting.
I've not seen anything near that cheap. The spec sheet is
ra
On Tue, 26 Oct 2004, David Lesher wrote:
>
> Speaking on Deep Background, the Press Secretary whispered:
> >
> >
> > You should be able to pick up simple current / wattage meter from local
> > hardware store for $20 or so. That will tell you that on a modern
> > dual-CPU machine the power consump
Speaking on Deep Background, the Press Secretary whispered:
>
>
> You should be able to pick up simple current / wattage meter from local
> hardware store for $20 or so. That will tell you that on a modern
> dual-CPU machine the power consumption at idle CPU is about 60% of peak.
> The rest i
I doubt that very much, or we wouldn't have variable speed fans. I've
monitored CPU temperature when doing compilations; it goes up
significantly. That suggests that the CPU is drawing more power at
such times.
I don't doubt what you are saying. However, I did say, "in the grand
scheme of thin
[mailto:[EMAIL PROTECTED] Behalf Of
> james edwards
> Sent: Tuesday, October 26, 2004 4:18 PM
> To: Alex Rubenstein
> Cc: [EMAIL PROTECTED]
> Subject: Re: Energy consumption vs % utilization?
>
>
>
> > Thats an insane statement.
> >
> > Are you saying,
Alex Rubenstein wrote:
I'm looking for information on energy consumption vs percent
utilization. In other words if your datacenter consumes 720 MWh per
month, yet on average your servers are 98% underutilized, you are
wasting a lot of energy (a hot topic these days). Does anyone here
have any
> Thats an insane statement.
>
> Are you saying, "You are only wasting money on things if you aren't
> profitable" ?
>
> /action shakes head.
No, I am not but my statement did sure sound like that was what I was
saying.
I do think it is apples or oranges comparing CPU % to total power used and
co
In message <[EMAIL PROTECTED]>, Alex Rubenst
ein writes:
>
>
>Hello,
>
>I've done quite a bit of studyin power usage and such in datacenters over
>the last year or so.
>
>> I'm looking for information on energy consumption vs percent utilization. In
>
>> other words if your datacenter consumes 7
On Tue, 26 Oct 2004, Erik Haagsman wrote:
It's more or less the truth though.
I think the comment was outside of the scope of the original discussion.
It seemed to me that:
It is only waste is the P & L statement is showing no profit.
inferred that any business practice is OK, as long as your ar
It's more or less the truth though. Only on rare occasions, such as the
cluster/fail-over scenario given, can you actually supply less power to
certain machines, and power use largely unrelated to their actual
utilisation. Keep an eye on your UPS load during peak hours and you'll
see the load risi
Erik Haagsman wrote:
Which means you have to make sure the revenue generated by those 98%
underutilized servers covers your powerbill and other expenses,
preferrably leaving some headroom for a healthy profit margin. As
long as that's the case there's no real waste of energy, the services
peop
Thats an insane statement.
Are you saying, "You are only wasting money on things if you aren't
profitable" ?
/action shakes head.
On Tue, 26 Oct 2004, james edwards wrote:
Sorry, this is somewhat OT.
I'm looking for information on energy consumption vs percent utilization.
In other words if yo
Hello,
I've done quite a bit of studyin power usage and such in datacenters over
the last year or so.
I'm looking for information on energy consumption vs percent utilization. In
other words if your datacenter consumes 720 MWh per month, yet on average
your servers are 98% underutilized, you a
>
> Sorry, this is somewhat OT.
>
> I'm looking for information on energy consumption vs percent utilization.
> In other words if your datacenter consumes 720 MWh per month, yet on
> average your servers are 98% underutilized, you are wasting a lot of
> energy (a hot topic these days). Does anyone
October 26, 2004 2:09 PM
> To: [EMAIL PROTECTED]
> Subject: Re: Energy consumption vs % utilization?
>
>
>
> On Tue, Oct 26, 2004 at 01:52:51PM -0400, Gregory (Grisha)
> Trubetskoy wrote:
>
> > Sorry, this is somewhat OT.
>
> Also Sorry, but I think the
On Tue, 26 Oct 2004 13:52:51 EDT, "Gregory (Grisha) Trubetskoy" said:
> average your servers are 98% underutilized, you are wasting a lot of
Remember in your analysis to include premature hardware failure due to too many
power cycles...
A server can *easily* "on average" be running at only 20-3
Actually I think nobody does calculate "real" utilization,
as there are a lot of soft factors to be taken into account.
Electrical usage for a datacenter is pretty consistent throughout a
month, even as measured by a sum of days. The utilization of the systems
inside of it are almost anything
On Tue, 2004-10-26 at 19:52, Gregory (Grisha) Trubetskoy wrote:
> In other words if your datacenter consumes 720 MWh per month, yet on
> average your servers are 98% underutilized, you are wasting a lot of
> energy (a hot topic these days).
Which means you have to make sure the revenue generat
On Tue, Oct 26, 2004 at 01:52:51PM -0400, Gregory (Grisha) Trubetskoy wrote:
> Sorry, this is somewhat OT.
Also Sorry, but I think the question itself is completely flawed.
> I'm looking for information on energy consumption vs percent utilization.
> In other words if your datacenter consumes
Sorry, this is somewhat OT.
I'm looking for information on energy consumption vs percent utilization.
In other words if your datacenter consumes 720 MWh per month, yet on
average your servers are 98% underutilized, you are wasting a lot of
energy (a hot topic these days). Does anyone here have
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