Installing UPS for HP ProLiant Servers

[ShadQad]

Dears,

Our Data Center contain nearly 50 HP servers (from G5 to G10 all are DL,and ML)

currently we are evaluating the installation of two new UPS's that operate as follow :

UPS A will take all the load anytime when the main power goes down and it will continue to operate until reaches its %10 of its power then it will pass the load to UPS B with a delay of 10 milliseconds 

i know this migh be silly but the vender brings this to our attention 

is HP Power Supply's can take that 10 millisecond delay or they just do arestart instead ?

[sangam_s]

when power goes off  hp power supply  will  not take 10 millisecond delay