NVMe Tuning

[Arwen]

May I ask where you found the info regarding the missing switch?

I tried "man nvme", "sudo nvme --help" and obviously googled it but never found info regarding the switches.
I can't find info on the -H switch for example, but that appears to be a "make human readable" switch
Information about the feature-ids also seem to be a closely guarded secret. I would have expected there to be a list of NMVe FID's but google let me down on that one too!

In the NVMe package I have on my Linux desktop, the "man nvme" simply shows what other manual pages are available. So I found "man nvme-set-feature" which has the "-s" option.

I did not find any cross reference of what does what, but did not look too hard. I may have added the Wiki entry, but the actual commands are from someone else here in the forums.

---

This might be a different source than what Arwen found, but I found a page that explains the -s option here:  https://manpages.ubuntu.com/manpages/bio...ure.1.html  

I found this after reading your post this morning, and was going to reply suggesting -s, but when I tried it on my own desktop it didn't work so I didn't reply.  Luckily Arwen did.

I wonder why I'm getting an error but you are not.  When I run:

sudo nvme set-feature /dev/nvme0 -f 2 -v 2 -s

After I type my password it comes back:

NVMe Status:FEATURE_NOT_SAVEABLE(10d)

I don't have my PBP yet, this was on my 9 year old X86 desktop running Mint.  This isn't really a problem on my desktop though.

First, do you have a NVMe on your 9 year old X86 desktop?
Second, did you run the command, "sudo nvme id-ctrl /dev/nvme0", to get the power settings of your NVMe?

My desktop has 2 NVMe SSD drives, and only 1 has the ability to change it's power settings. The other does not. Thus, it would likely fail like yours.