certain NVME drives preventing low power states?

[ph_]

Hi,

 

I have read here and there that certain NVME drives might be responsible for Systems not being able to reach lower power states such as C7 or C8.  If this is the case, is there some guidance which models are proven good in that respect and which ones are troublesome and thus better to be avoided for low power server builds? 

 

In particular, I was interested in experience with Enterprise NVME drives as many of those have capacitors onboard preventing data loss in a case of sudden power failure which seems like a great feature to have (although maybe not necessary if you have a UPS?) . Point being that those types of drives are apparently especially uncooperative when it comes to low power management. 

 

I would appreciate some insight being shared or links with more information.

 

Many thanks!

[ph_]

Replying to my own post, there is some info on the german corner of the forum: 

I guess you easily get obsessed with saving power if you have electricity prices as skyhigh as in germany....