Hello,
We have a project to build a data center to handle 20 racks. each rack will has 12-15 servers. most of the servers are DL380 G5. As per HP website and their data sheets, each server will need around 2.4 Amp. simple calculation:
2.4 x 15 (servers rack) x 20 (racks) = 720 Amp. Please note that we are using 220v not 110v and each server will consume around 450-500 watt and around 500KVA.
Question 1:
I don't know why I have a feeling that it's little bit higher than I was expecting ! specially this is without AC.. please advice.
Question 2:
We are designing the electrical power system for the data center.I was wondering what is the best practice for the electricity.
As per the attached drawing, the main power source is raw line from government. A power generator will be redundant in case any failure in the main.
ATS will control the automatic shifting between them.
There will be around 20 racks, each rack has 2 PDU. for increasing the availability, we were thinking of having two main UPSs. PDU1 in each rack will be connected to UPS1. PDU2 in each rack will be connected to UPS2.
my concern is future expansion, it will be very expensive related to the UPSs. in the current scenario, each side of UPSs (1 or 2) should be able the handle the whole data center. Hence, I have to buy two UPSs each time for every side !! I Was thinking to combined the UPSs together as one back, ALL PDUs will be connected to the same bank.
what do you recommend me ?
IMAGE
Thanks,