This is a long way off topic but I'm hoping that someone here might be
able to share a clue...
I need to measure the power used on dozens and dozens of servers.
I need a breakdown by server, not a total for the room.
(more specifically, I want to calculate the power cost per server per year).
On 29 Apr 2009, at 09:42, Andrew Beattie wrote:
So, I got a clamp meter. But contrary to my expectation, that only
works if I can separate the individual wires in the power cable -
not an option.
So, I'm stuck. Is there any non-intrusive way to measure the power
consumption of my serv
A frend of mine has a Power Owl
http://www.greenstamp.co.uk/product_info.php/cPath/33/products_id/68?gclid=COmqvdzclZoCFR4hnAodx3XzNw
You clip the sensor round the mains power were it comes in to the
electricity meter. I guess you could clip it round the server power cable
I'd be inclined
2009/4/29 Andrew Beattie :
> This is a long way off topic but I'm hoping that someone here might be able
> to share a clue...
>
> I need to measure the power used on dozens and dozens of servers.
>
> I need a breakdown by server, not a total for the room.
>
> (more specifically, I want to calculate
I'd second the option of getting a similar machine and comparing that. The
power usage doesn't vary much more than about 20% against CPU load in my
experience, unfortunately.
If you're feeling brave you can separate the live wire from the rest
_reasonably_ safely. The trick is using a very sharp k
On Wed, Apr 29, 2009 at 10:05:01AM +0100, Michael Lush wrote:
>
>
> A frend of mine has a Power Owl
>
> http://www.greenstamp.co.uk/product_info.php/cPath/33/products_id/68?gclid=COmqvdzclZoCFR4hnAodx3XzNw
>
> You clip the sensor round the mains power were it comes in to the
> electricity meter.
2009/4/29 Paul Makepeace :
>
> If you're feeling brave you can separate the live wire from the rest
> _reasonably_ safely. The trick is using a very sharp knife and bending the
> cable and nicking the outer sheath at the outside 'edge' of the curve. What
> tends to happen is the sheath tears and w
On 29/4/09 10:05, Michael Lush wrote:
A frend of mine has a Power Owl
http://www.greenstamp.co.uk/product_info.php/cPath/33/products_id/68?gclid=COmqvdzclZoCFR4hnAodx3XzNw
This works because the conductors come into the meter separately. It has
the same issues as all clamp meters.
S.
On Wed, Apr 29, 2009 at 10:56 AM, Jasper wrote:
> 2009/4/29 Paul Makepeace :
>
> >
> > If you're feeling brave you can separate the live wire from the rest
> > _reasonably_ safely. The trick is using a very sharp knife and bending
> the
> > cable and nicking the outer sheath at the outside 'edge'
On Wed, 2009-04-29 at 09:42 +0100, Andrew Beattie wrote:
> This is a long way off topic but I'm hoping that someone here might be
> able to share a clue...
>
> I need to measure the power used on dozens and dozens of servers.
>
> I need a breakdown by server, not a total for the room.
>
> (more
2009/4/29 Nick Cleaton :
>
> One possibility might be to measure the heat output of the servers,
> rather than the electricity input. If you assume that the servers lose
> heat mainly by pumping hot air out with fans, you'd need to measure both
> the air flow rate and the difference between outpu
On Wed, 2009-04-29 at 12:23 +0100, Jasper wrote:
> 2009/4/29 Nick Cleaton :
>
> >
> > One possibility might be to measure the heat output of the servers,
> > rather than the electricity input. If you assume that the servers lose
> > heat mainly by pumping hot air out with fans, you'd need to meas
On Wed, Apr 29, 2009 at 09:42:55AM +0100, Andrew Beattie wrote:
> I can't go round, yanking out cables and inserting in-line meters.
> So, I got a clamp meter. But contrary to my expectation, that only
> works if I can separate the individual wires in the power cable - not an
> option.
> So, I'
2009/4/29 Nick Cleaton :
> On Wed, 2009-04-29 at 12:23 +0100, Jasper wrote:
>> 2009/4/29 Nick Cleaton :
>>
>> >
>> > One possibility might be to measure the heat output of the servers,
>> > rather than the electricity input. If you assume that the servers lose
>> > heat mainly by pumping hot air o
On Wed, Apr 29, 2009 at 10:53:30AM +0100, Chris Benson wrote:
> I got a few inline power meters from Maplins when they were on
> offer at 9.99 http://www.maplin.co.uk/Module.aspx?ModuleNo=38343
> (But they're now 22.99!) Ah, the current "deal" is
> http://www.maplin.co.uk/Module.aspx?ModuleNo=223
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