At the moment running 2.5" 500GB drive for OS Windows Server 2012 R2 + 3x old( circa 2003 so not very efficient) 250GB 3.5" drives in RAID 0 for testing purposes and power consumption is 47-48W at idle, 60W when running speedtest for disks using CrystalDiskMark and max I have seen when CPU is 100% load was 99W. More modern HDD's should be more efficient so I am hoping to see under 50W power consumption with 4x2TB drives.
The way I calculated 1W of power consumption equals to £0.768 per year running 24/7 with economy 7 tariff so going from 300W to 50W over 3 years is £576 saving for me and will pay for CPU upgrade to Xeon E3-1265L and RAM to 8GB with spare left.
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Currently 8less
2011 Q7 S Line 3.0TDI, 2016 Tesla Model S 90D
8 history:
2006 A8 Sport 4.2TDI quattro SOLD,
1997 S8, reached end of life with gearbox failure
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