[mythtv-users] Backend hardware advice - Power usage - RESULTS

John Drescher drescherjm at gmail.com
Thu Aug 3 17:10:47 UTC 2006

On 8/3/06, dave johnson <DJ4904 at hotmail.com> wrote:
> just in case anybody was curious, i measured the power usage of the
> following storage system with the Kill-A-Watt device:
> Storage system:
> -1GHz PIII System
> -512MB Ram
> -Intel Desktop Board with integrated video
> -Intel Pro1000 Desktop Card ($15 craigslist)
> -3Ware 7508-12 PATA RAID controller ($219 ebay)
> -11x200GB Seagate 7200.8 PATA HD ($43/ea total after rebate)
> -2x250W powersupplies (connect green leads from each ATX connector to have
> both support auto-on/off.
> Mobo+4HDs on one, 5 HDs on the other)
> -Openfiler NAS/SAN appliance software (http://openfiler.com)
> And at IDLE it pulls a solid 173W.  At full-on disk random IO (turned on
> playback on two Myth front-ends, as well as ran a "tar cfz /tmp/test.tar.gz
> /storage" on the box, plus a session of Clone Spy on a mounted windows
> share, and a "find /" from an NFS client on the same exported share as the
> Windows share.
> Total at this max load hovered between 218W and 228W
> For fun I tested my D940 D945GNTLKR desktop and it used 180-210 at idle and
> 240 with two sessions of winrar trying to compress the C:\WINDOWS directory.
>  My DFI LAN Party board with X2 3800+ system by same contrast used 110W at
> idle and 140-150W at full load.  My PII 266 Dell Inspiron Windows domain
> controller and various other Win utils used an idle 18W and 32W at full
> load.
> So to recap:
> Storage system: approx 195W
> D950 3.4x2 Intel system: approx 200W
> X2 3800+2.2x2 AMD systrem: approx 120W
> PII 266Mhz laptop system: approx 25W
> Toshiba Tecra 8200 750MHz laptop: 34W
> Now I need to grab a Goede system and see what it comes in at but from the
> looks of it :)
> -=dave

Thanks for the info. I guess this shows that the apc numbers are in
the correct range.


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