Im lost in why a guy who has:
WD SN810
Toshiba Kioxia KXG70PN84T094TB 4TB SSD
Is asking about over provisioning.
That myself feels strange, as those SSD is not something a new buyer would even consider as a purchase, seeing as its an enterprise class SSD.
Infact im willing to bet 2/3rds of the people who read this thread have no clue on what those SSD's even are, as they are not the typically branded "Popular" consumer brand SSD.
But OP as igor says, its typically done on hardware level now. (especially on enterprise class / business class SSDs)
You can still set aside a 10% partition, and not mount it.
But really, you have some pretty exotic choices in SSD.
The SN810 is not the black series, which most consumers get... thats the SN750/850.
That Toshibia is a U.2 nVME, which is a unpopular branch on consumer side for nVME... its mostly Enterprise designed to be thrown in a hotswap bay under a Bifurication port with a dedicated nVME controller.
You see why i say you got some exotics taste in SSD's.
I know it might be confusing but here's the story.
I never even knew that there was a WD SN810, I had the SN750 in my previous Alienware laptop. Then the next Alienware laptop which was an Alienware x15 came with the SN810. At first I thought it was some mid-range SSD always thinking that the Samsung 980 PRO is the king but the WD SN810 turned out to be a beast of an SSD, not available to your average consumer, I guess only OEMs have them.
Finally, on my last Alienware laptop that I just got which is the one you see in my signature, the Alienware m15 R7 AMD variant came with the Toshiba Kioxia KXG70PN84T094TB 4TB SSD which I had no clue what that even is until I did some research and turns out to be that it is an Enterprise level SSD, that came as the main drive but it was slower than the WD SN810 so I placed it in the 2nd slot and used it as storage and cloned the factory image to the faster WD SN810.
On a similar note, the Dell XPS 13 9310 I have also came with an OEM SSD which is the Samsung PM9A1 2TB that is similar to the 980 PRO in terms of performance.
Here are the benchmarks of them all if anyone is interested:
WD SN810 2TB:
Toshiba Kioxia KXG70PN84T094TB 4TB:
Samsung PM9A1 2TB:
Samsung 980 Pro 2 TB:
