[mythtv-users] MythTV and LVM

[Robert Tsai]

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
-------------- next part --------------
A non-text attachment was scrubbed...
Name: not available
Type: application/pgp-signature
Size: 189 bytes
Desc: Digital signature
Url : http://mythtv.org/pipermail/mythtv-users/attachments/20060131/8a9a5cb1/attachment.pgp