In a server, the processor accounts for 50% of total server power, the memory system accounts for 30%, the disk accounts for 10%, and miscellaneous components account for remaining 10%.  You have a $500 budget to upgrade your server to make it more power efficient.  You plan to either replace your memory module with a new memory module or your disk with a new disk. With the budget you can either purchase a new memory module that consumes 40% less power than your old memory module, or a new disk that consumes 40% less power than the old disk.  which would you choose to purchase if you were only worried with reducing your servers power consumption?

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Asked Sep 19, 2019
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In a server, the processor accounts for 50% of total server power, the memory system accounts for 30%, the disk accounts for 10%, and miscellaneous components account for remaining 10%.  You have a $500 budget to upgrade your server to make it more power efficient.  You plan to either replace your memory module with a new memory module or your disk with a new disk. With the budget you can either purchase a new memory module that consumes 40% less power than your old memory module, or a new disk that consumes 40% less power than the old disk.  which would you choose to purchase if you were only worried with reducing your servers power consumption?

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Expert Answer

Step 1

For a server,

Power consumption of processor = 50 % of total power

Power consumption of memory system = 30 %

Power consumption of disk = 10 %

Power consumption of miscellaneous = 10 %

Budget for power reduction = $ 500 which can purchase either a new memory module or a new disk.

Step 2

1) New memory module reduces power consumption by 40%.

Total Powe reduction by upgradation of a part = Percentage reduction by upgrading a part x Percentage of total server cosumption by that part

Total power reduction using new memory module = 40 % of 30%

= 40/100 x 30 /100 = 12%

2) New disk reduce...

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