[mythtv-users] MythTV and LVM
Robert Tsai
rtsai1111 at comcast.net
Tue Jan 31 16:13:48 UTC 2006
On Tue, Jan 31, 2006 at 09:54:39AM -0500, PAUL WILLIAMSON wrote:
> I'm not sure what the motivator here is, but I haven't figure out a
> way to spin down a drive in an LVM array. Powering down an entire
> PC for a month saved me a grand total of ~4 USD. I would suspect
> powering down 1 drive might save you 3 dollars over the course of a
> year.
Was this a scientific experiment, or just a month-to-month utility
bill comparison?
I received a Kill-A-Watt as a present and have been playing around
with it for a little bit. It reports my system as drawing 80W at idle.
At $0.18/kWH (as reported on my last few electricity bills), this
comes out to :
80W * 24hrs/day * 30days/mo * 1kW/1000W * $0.18/kWh = $10/mo
and that's 80W at idle.
$10 barely covers lunch, but it's still more than double the $4 you
cite. But then again, maybe electricity here (Boston, MA) costs 2x
more than in other parts of the US (which I can easily believe).
Throw in a second machine as an extra backend or frontend, and now
you're up to $20/mo just to power a machine that is only actually in
use for a few hours per day ...
--Rob
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