Comment Re:But what about... (Score 1) 532
I'll do power consumption, then someone else can build off that to do hear dissipation.
Published consumption for the ST3500641AS (500GB) is 7.4W idle, 12.6W seek. Let's assume that at any given time, only 0.1% of the drives (24,590) are seeking. That should be enough throughput for your application. :)
The seeking drives are using 309.8kW, the remaining drives are using 181.7MW. Assuming an electric rate of $0.09/kWh, I'm coming up with a monthly electric bill of $11,799,721.49.
As a useful side-effect of this calculation, I can tell you that adding this drive to your computer will add about $0.65/month to your power bill at a 50% duty cycle.
Keep in mind that none of these figures are taking power supply inefficieny into consideration!
Published consumption for the ST3500641AS (500GB) is 7.4W idle, 12.6W seek. Let's assume that at any given time, only 0.1% of the drives (24,590) are seeking. That should be enough throughput for your application.
The seeking drives are using 309.8kW, the remaining drives are using 181.7MW. Assuming an electric rate of $0.09/kWh, I'm coming up with a monthly electric bill of $11,799,721.49.
As a useful side-effect of this calculation, I can tell you that adding this drive to your computer will add about $0.65/month to your power bill at a 50% duty cycle.
Keep in mind that none of these figures are taking power supply inefficieny into consideration!
