Redundant PSU 20 drives?

[wisem2540]

Hey guys,

 

I know the goal with unraid is to always use a single 12v rail when possible.  However, I found this redundant PSU with what looks like 2x 19A rails per module.  Obviously, I would expect one module to carry the load in the event of a failure.  My current system only has 10 drives in it.  Ill be moving to a Norco 4220.  While I may never hit the 20 drive mark with hard drives increasing in size so quickly, I want the ability to do so.

 

Right now I am running 10 drives on a 400w 25A PSU with no problems.  Below is a link to one of the modules.  Will this work or is it not worth the hassle?

 

http://athenapower.com/node/246

Edited December 11, 2018 by wisem2540

[Vr2Io]

I will vote UPS first, if current build was 400w fine, in fact add 10 more drive won't cause huge power raise.