got a power meter? what is your watts/TB?

____________________

Dan_D

Advertised Capacity (TB)
1.16TB
Wall Plug Power Draw @ v (idle) (W)
450Watts
W/TB
Measurement
UPS

Motherboard
EVGA X58 3X SLI Classified
CPU
Intel Core i7 920 @ 4.2GHz
Graphics
3x BFG Technologies Geforce GTX 280 OC (3-Way SLI)
Controller
ICH10R
Hard Drives
Western Digital Black 500GB (x2) Intel X25-M 80GB (x2)
PSU
Thermaltake ToughPower 1200watt
Other[/QUOTE]
 
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Advertised Capacity (TB): 9 x 1.5TB = 13.5 TB - 3 TB (RAID 6 parity) = 10.5TB usable
Wall Plug Power Draw @ v (idle) (W): 130W
W/TB: 12.39 W/TB
Measurement: APC 1500VA LCD UPS

Motherboard: Gigabyte G45 DS2
CPU: Intel Core 2 Duo e6400 @ stock
Graphics: onboard G45
Controller: 3ware 9650-16ML
Hard Drives: 9 x 1.5TB ST31500341AS, 1 x 250GB WD2500KS
PSU: Corsair CMPSU-450
Other: Norco RPC-3116
 
My iPhone 3G lasts about 27 hours on a full charge. With a 1150 mAh battery, which estimates at 42 milliamps constant, or around 0.155 watts at 3.7 volts.

With 16 gigs of memory, I've got 1/64th of a terabyte. That's 0.155 watts per 64th of a terabyte, which is 9.92 watts per terabyte.

Advertised Capacity 0.015625 TB
Wall Plug Power Draw @ 110v (idle) (W) N/A
Measurement 0.155 watts
W/TB 9.92 W/TB

Motherboard iPhone 3G
CPU {{dunno}}
Graphics {{dunno}}
Controller {{dunno}}
Hard Drives None, FLASH
PSU None
Other None
 
smart arse:rolleyes:

My iPhone 3G lasts about 27 hours on a full charge. With a 1150 mAh battery, which estimates at 42 milliamps constant, or around 0.155 watts at 3.7 volts.

With 16 gigs of memory, I've got 1/64th of a terabyte. That's 0.155 watts per 64th of a terabyte, which is 9.92 watts per terabyte.

Advertised Capacity 0.015625 TB
Wall Plug Power Draw @ 110v (idle) (W) N/A
Measurement 0.155 watts
W/TB 9.92 W/TB

Motherboard iPhone 3G
CPU {{dunno}}
Graphics {{dunno}}
Controller {{dunno}}
Hard Drives None, FLASH
PSU None
Other None
 
Depending on your power supply efficiency you could be off by 30%.

With anything inductive, such as a computer PS, watts doesn't really mean much. Take for example why they rate UPSs in VAs?

What does the kill-a-watt say the VAs are?

I am sure that most people pay for KWh, not VA, so the Watts are interesting for cash flow purposes
 
bump
after 23days finaly had to move boxes
so took measurements of powerusage
boxes from signature had 47.21kWH and 43.28kWH in ~555hours
thats 85.06W and 77.98W avg power drain
or 3.61W/TB and 5.37W/TB
pretty nice to have 38TB draining just 163W or 4.28W/TB
 
this might be cheating but I am using a Synology NAS DS409. I have 4 2TB drives in it and I use it as a download station Idle it consumes about 30W. I am going to plug in my kilawatt and see what happens.
 
this might be cheating but I am using a Synology NAS DS409. I have 4 2TB drives in it and I use it as a download station Idle it consumes about 30W. I am going to plug in my kilawatt and see what happens.

could be an interesting point of reference
add your power measurement and i will add your system to the first post
 
Disk Configuration: 10x1.5 TB + 1 100GB boot disk
Capacity based on Manufacturer labels of disks: 15.1TB
Usable space after raid and manufacturer lies: 11TB
Power Draw @ 110V = ~140W
W/TB (advertised) = 9.3333
W/TB (usable) = 12.72
Measuring Device = Kill a Watt

Hardware:
Cpu: Intel Core 2 Quad Q9450
Motherboard: Supermicro X7SBA w/ IPMI add on card
GPU: Onboard, XGI Volari
PSU: Corsair HX850
Case: Norco 4020 - 5x 80mm case fans, three of them have fan controllers which are limiting them to 7V.
Disks:
-10 SAMSUNG Spinpoint F2EG HD154UI 1.5TB 5400 RPM 32MB Cache SATA 3.0Gb/s 3.5" Internal Hard Drive
-1 100GB 2.5" 5400RPM drive (not at home now so I dont know what the manufacturer is)
Controller
-LSI SAS 3801E Pci-E Host Bus Adapter
-Chenbro ck13601 Sas Expander
Add on Cards
-Intel Quad port Pci-x gigabit ethernet nic
 
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Im wondering what the power usage would be for a Server with a Q9400 95W and 24x WD 1TB GP drives. Thanks
 
DeChache

Advertised Capacity (TB) 2.75
Wall Plug Power Draw @ v (idle) (W)(120v) 55 Watts
W/TB 20
Measurement APC UPS

Motherboard Gigabyte P-35 DS3R
CPU E8400
Graphics ATI Rage 6 PCI card
Controller ICH9R
Hard Drives 2 WD Green 1tb 1 Maxtor 500 gig 1 WD 250
PSU Antec Earthwatts 380
Other
 
The bulk of mine is from cpu/mem/mobo/vid card but:

Advertised Capacity 20 TB
Wall Plug Power Draw @ 110v (idle) (W) 350 Watts
Measurement watts-up-pro
W/TB 17.5 W/TB

Motherboard MSI nforce 750i SLI board
CPU Core 2 Quad Q6600 2.4 Ghz
Graphics Nvidia Geforce GTX 260
Controller Areca ARC-1280ML
Hard Drives 20x1TB 7200 RPM Seagate
PSU Corsair 850 watt
Other lots of fans from norco-4020. Creative Audigy 2 ZS sound card. 8GB of DDR2-1000 memory.
 
Im wondering what the power usage would be for a Server with a Q9400 95W and 24x WD 1TB GP drives. Thanks

You can count with 4W in idle per drive, 10W per idle Raid controller, and about 60W for the base system using a mobo with G43 chipset and one GP system drive and voltages lowered a bit, and a good efficient PSU.

So all in all ~160W idle and a bit <100W when all Raid drives are spun down.
;)
 
Advertised Capacity 5.79 (TB)
Wall Plug Power Draw @ v (idle) 65 (W)
W/TB 11.22
Measurement Kill-a-watt

Motherboard Gigabyte GA-945GCM-S2C
CPU Intel Celeron 440 2.0ghz
Graphics onboard
Controller AOC-SASLP-MV8
Hard Drives
2x 1.5tb Seagate
2x 640gb WD
2x 1tb Hitachi/Samsung
1x 80gb Maxtor

PSU Antec earthwatts 450
Other Tower case
 
Anyone planning on compiling this and making a graph of it or something?
 
Advertised Capacity (TB): 4.5TB
Wall Plug Power Draw @ v (idle) (W): 230W
W/TB: 55 W/TB (usable) 51.1 W/TB (advertised)
Measurement: Kil-A-Watt (us)

Motherboard: Biostar G33 m-atx
CPU: Intel Celeron E1400 @stock
Graphics: onboard G33
Controller: Rocketraid 2300, 2220
Hard Drives: 7x750gb WD750AAKS
PSU: Corsair Antec 650w
Other: Norco 4020
 
Last edited:
An Excel spreadsheet or a graph would be pretty neat, though hardly scientific, but a nice point-of-reference to those wondering how much energy a multi-terabyte home server would use. :)
 
You can count with 4W in idle per drive, 10W per idle Raid controller, and about 60W for the base system using a mobo with G43 chipset and one GP system drive and voltages lowered a bit, and a good efficient PSU.

So all in all ~160W idle and a bit <100W when all Raid drives are spun down.
;)

Thanks, what would the power usage be during boot and load (read/write)?
 
^Hmmm, that is hard to calculate exactly, IMO.
I have the system described above but with 8 1TB drives.
I think mine pulls 170-190W on startup and around 90W idle, drives spinning.
12 drives more, I would calculate ~140W more on startup.
I think my system without drives on the array was ~90W on startup, but I don't remember for sure

If you ask, thinking what PSU to buy... consider this: I started up my system just fine on a $10(!) no name PSU rated 400W. Surprisingly that psu was one of the most efficient I used.

BUT it was on the very edge... when I was doing file copies to the array, connecting only an 2.5" USB disk or opening the DVD rom caused a disk to drop out of the array. :)
I went with Corsair HX, 650W, i think and the problem went away. :)
 
Just bought a 1300VA APC UPS unit which has a built in power meter for my home server. When I plugged everything into it without the server on it showed 34W (from my cable modem and router and whatever other phantom power, which seems a little high). When the machine is on and idle it shows a pull of 251W, which means the server is consuming 217W.

Specs:

Q6600 overclocked to 3ghz @ 1.31v
4GB DDR2 ram (4 sticks)
Asus P5WDH Deluxe
Highpoint RocketRaid 2320
6x 750GB WD RE2 in raid 5 (3.41TB usable)
2x 36GB WD Raptor in raid 0 (os)
GeForce 8600 GTS

Watts / TB = 64

Once I saw how much it was pulling I decided to experiment on RAID spindown and also setting the CPU to stock speed with speedstep enabled. RAID spindown saved about 10w and setting the CPU to stock with speedstep (idling at 2ghz) saved 10w. Neither seem worth it to me.

Aside from that, doesn't my wattage seem high?
 
I remember sticking my UPS into a power meter and it showed 30W by itself.
I'm not sure, but once you load it up, I don't think it adds that exact amount to the total power consumption...
 
This is a good idea

my 3.5 TB system currently pulls 170W

putting me at 48.5 W/TB

i will hope to upgrade that soon tho as currently there are loads of 400/500/750 GB drives there

ok have updated to rig in sig (server)

this is idling @ 110W putting me at 13.75 W/TB

EDIT:

bit of tweaking has me down to 103 thats 12.875 W/TB



Advertised Capacity (TB) 8TB
Wall Plug Power Draw @ v 240 (idle) (W) 103
W/TB 12.875
Measurement Kill A Watt

Motherboard MSI p55 Gd65
CPU core i7 860
Graphics ati 3450
Controller on board
Hard Drives 5 * wd gp 1 seagate 500GB
PSU antec signature 650W
Other
 
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I've measured the main workstation up here before. Dell Precision 690 1kw, dual quad core xeon, 32GB FB-DIMMS, 8800GTS, 4 15k SAS drives, 1 Intel G2 SSD. At idle it pulls about 190 watts, at full load it runs up to about 570 watts. It does run at full load a lot when it's doing major operations on 2 to 4gb images.

I used to fold on it and the other boxes up here but with everything at 100% load 24x7 it was noticeably hotter in here and the power bill was running $100 higher per month. :eek:
 
Advertised Capacity 6 TB
Wall Plug Power Draw 30 W
5 W/TB
Measurement
Two separate UPS with LCD displays, one shows 24-36 Watts alternating (3% of its 1000 VA capacity) the other varies between 15-22 watts at idle. I will pick a high est for now and say 30 W.

Motherboard Stock Intel S4200-E
CPU Stock Intel S4200-E
Graphics Stock Intel S4200-E (no output, chipset integrated exists however)
Controller ICH7
Hard Drives 4 x WD GREEN 1.5 TB
PSU Stock Intel S4200-E
Other Stock Intel S4200-E upgraded to 2 GB ram WHS installed with all drivers (was a bitch to hunt some of them down. This was key to minimizing power.)

is that a new leader? Ill try to get some better measurments (how?) also this was done just after a startup with 100% hard disk activity
 
280watts
7TB spread over 12 drives, 9 internal and 3 external.

40w/TB

Q6600 @ 3.02Ghz, AC Freezer 7 Pro
eVGA GTX 285
8GB DDR-2 1066 (4x2GB)
Antec True Power New 650watt
3x WD 1TB Black
2x WD 500GB My Books
1x Seagate 1.5TB
2x WD 250GB
1x Seagate 400GB
1x WD 500GB
1x Seagate 320GB

and I think I forgot to plug in the 12th drive last time I was in the machine and can't recall what it is and what size it was.
 
Last edited:
is that a new leader? Ill try to get some better measurments (how?) also this was done just after a startup with 100% hard disk activity

Volt Amps are always higher than watts (or equal in a pure resistive circuit), retest with a Kill-A-Watt. Although UPS measurements are not that accurate it might be better than you think!
 
280watts
7TB spread over 12 drives, 9 internal and 3 external.

40w/TB

Q6600 @ 3.02Ghz, AC Freezer 7 Pro
eVGA GTX 285
8GB DDR-2 1066 (4x2GB)
Antec True Power New 650watt
3x WD 1TB Black
2x WD 500GB My Books
1x Seagate 1.5TB
2x WD 250GB
1x Seagate 400GB
1x WD 500GB
1x Seagate 320GB

and I think I forgot to plug in the 12th drive last time I was in the machine and can't recall what it is and what size it was.

are the external hard drives included in the power measurement?
if not, what is the capacity of the internal only drives?
 
are the external hard drives included in the power measurement?
if not, what is the capacity of the internal only drives?

Yes the externals are included in the power measurement. the externals equal 2TB, so 5TB internal.
 
Used my UPS meter as well as this,
sencore.jpg
 
that does seem very low

will update the list after xmas

Just took another measurment after its on for a while with no HD activity. My 1250 VA APS UPS consistently says between 14, 15 and 16 watts. That puts it at 2.7 W/TB :eek:. and all 4 drives spinning (I think they slow to 3200 RPM or something) I'll withhold that for now pending a more accurate measurement (maybe i'll buy a Fluke DMM or something.)

If thats close to accurate, who needs an Atom based build? I'm also planning on upgrading it to an E2220 or E4200 with speedstep and I was expecting that to further lower power consumption.

ightsout is also running and the system goes into standby when not and use and WOL and WOW work perfectly (can wake the system remotely) but now... I don't see the point! I'm going to have to get a more accurate measurement.

Now I just need to do something about the fans in this thing (louder then my power hungry desktop with 8 PWM slowed to 900 RPM S-FLEX fans)

Intel S4200-E / Fujitsu Scaleo FTW. Performance is excellent with 2gb ram, too.
 
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