Hello,

I am looking to see if anyone has some general real world power usage differences between using SSDs vs. HDD in Unraid.  Mainly being that I run a simple 20 drive storage server and when not in us each HDD drive sleeps, would I see any real differences in usage upgrading to SSDs?

 

Thank for the help

You need to check the spec sheet of the HDD / SSD model because they do have a large variation.

 

Generally though:

• HDD sleeps (spin down) at about 0.25W, idles at about 3-5W, operates at 4-8W and uses up to 20W while spinning up.
• SSD sleeps at about 0.002W, idles at about 0.50W, operates at 2-6W

 

So if your HDDs are in spin down most of the time then the power usage diff would be rather insignificant.