Hi all,
I have made a test who surprised me with his impact.
I actualy have 2 C6100 with all node @ 24Gb (12 x 2Gb).
I recently buy 4 x 16Gb and I have replaced the 12 x 2 by 4 x 16 for an extra amount of 40Gb of ram.
When I compare the two configuration with a wattmeter at the wall plug and the server in IDLE state… I have a delta of 30w !
It is more than expected, because I don’t upgrade the ram to save power.
If I do a good calculation
0.03 KW/h x 24h x 365d = 262.8 KW/h/Y
262.8 x 0.218 (Power cost a lot in Belgium) = 57.29 $/Y
It could be interesting to know when we need to buy extra memory, feg 4 x 16 vs 8 x 8.
8 x 8 = 450$ http://www.newegg.com/Product/Product.aspx?Item=N82E16820239420
4 x 16 = 520$ http://www.newegg.com/Product/Product.aspx?Item=N82E16820239276
Delta 70$
Evalued power consumtion / module = 3,75 W
8 x 8 = 30W
4 x 16 = 15W
Delta 15W
29$/Y
Delta financial amortization 2 Y 5M (29 month)
It stupid but I always bought for minimum 3 year and I keep on the and more slots for extention
I have made a test who surprised me with his impact.
I actualy have 2 C6100 with all node @ 24Gb (12 x 2Gb).
I recently buy 4 x 16Gb and I have replaced the 12 x 2 by 4 x 16 for an extra amount of 40Gb of ram.
When I compare the two configuration with a wattmeter at the wall plug and the server in IDLE state… I have a delta of 30w !
It is more than expected, because I don’t upgrade the ram to save power.
If I do a good calculation
0.03 KW/h x 24h x 365d = 262.8 KW/h/Y
262.8 x 0.218 (Power cost a lot in Belgium) = 57.29 $/Y
It could be interesting to know when we need to buy extra memory, feg 4 x 16 vs 8 x 8.
8 x 8 = 450$ http://www.newegg.com/Product/Product.aspx?Item=N82E16820239420
4 x 16 = 520$ http://www.newegg.com/Product/Product.aspx?Item=N82E16820239276
Delta 70$
Evalued power consumtion / module = 3,75 W
8 x 8 = 30W
4 x 16 = 15W
Delta 15W
29$/Y
Delta financial amortization 2 Y 5M (29 month)
It stupid but I always bought for minimum 3 year and I keep on the and more slots for extention
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