Power for new Data Center with 7500sqft of technical area and will host high density, mainframe, storage and network infrastructure.

5 pts.
Blade Technology
Data Center construction
Data Center power management
Network infrastructure
I am looking at the power requirements for a potential New Data Centre. The Centre is going going to be 7500sqft of technical area and will host high density, mainframe, storage and network infrastructure. I worked on 1500w per square metre. Do you think this is too much for a new centre that will need to last 15 years atleast. Our standard is to allow a maximum of 3 blade enclosures per rack in our primary site.

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A typical storage rack will need 60A of 208v power. A standard server rack will need between 40A and 60A of 110v power. Using blades, this will depend on your blade vendor. Some require 2 power circuits per rack, others require 4. Each circuit will need to be 20-30A of 208v power.

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  • Yasir Irfan
    If you are using HP Blade server they have a very good utility which calculates the power as well cooling requirements for each rack. APC does have some useful white paper for designing data centers.
    7,330 pointsBadges:
  • NEHarris
    Todays Data centers have mixed areas for power and cooling. Your blades and storage will be ydur higher density for power and air which could be 15kW or higher per square ft.. While your standard racks may be 50W-70W per square foot. This way you can place the right cooling and power solutions in a high and low density areas. In row AC like the Liebert CRV, XDH and APC's Row coolers would be a great solution for cooling the high density areas and less cooling in the standard rack areas. The same with the power, place higher voltages closer to your high density areas. Why over kill an area in your center that will never reach the watts per square foot you stated. Designing data centers like this makes them "green" and your cost of operations is lower. What I am trying to state is do not use one number. I hope this helps.
    60 pointsBadges:
  • tmullahy
    Starting with 60A of 208v power is good, but you should shoot for more. We have one customer who is running 90A of 208V in one rack as we built Liberty Center One in Royal Oak, MI to an extremely high density footprint to support blades and large storage devices. The other consideration when building is how you want to deliver power redundancy. We have a true A/B design where we provide live circuits on the A and B side which are separately pathed to separate UPS. For instance in the case of the customer with 90A of 208V in one rack, Liberty Center One is dropping in three 30A circuits on the A side and three 30A circuits on the B side, with the expectation that only 30A live will be used. This impacts your power delivery strategy more than it would the cooling.
    20 pointsBadges:
  • Dave mc
    You need to calculate your estimated KW per rack as you not only need to calculate the current draw (amps) per rack, Then you need to calculate the maximum number of racks you will need for the future (or as far as you can see) as this will impact on the amount of cooling you will need (KW). It is a lot cheaper to allow for cooling expansion at the design, than an add on later. The second major issue is to decide what type of cooling is to be installed as this makes a big difference in power requirements. Eg if you live in a hot area the cooling will be higher, the building design makes a difference, and if you intend to use free cooling or other energy efficient designs this can reduce the power requirements and you ongoing costs a lot. (depending on your climate and what temperature you want to run your servers Etc at.
    470 pointsBadges:
  • Gallagher
    This depends highly on what you consider high density. 1500W^2 per meter is very low. Assuming 3 blade chassis per rack and two top of rack switches, for a medium / high density rack and assuming 2 tiles per rack in the hot row and 1 1/2 tiles per rack in the cold. This gives you 1.7M^2 per rack. The max power required per rack is 2400w per hp power supply so 12 X2400w and 1100w per switch power supply so 4x1100w. This gives you ~33k power per rack. allowing for spikes you should figure 33k at 80% per side, so 2x 35k redundant PDU's per rack. This equates to 16K redundant per M^2. Hope this helps.
    10 pointsBadges:

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