Is SSD over-provisioning relevant when they're used for reading 99% of the time?

[kaaskop]

Is SSD over-provisioning relevant when they're used for reading 99% of the time?

 

[popatim]

well in 1% of the time it might be.
SSD's can write to smaller chunks then it can erase so if old data, that needs to be wiped off, still has valid data in part of the larger erase chunk, it needs to move it to a temporary location first. overprovision provides this space.

While you dont have to overprovision and could fully partition and format the drive. as you fill it to the end trim and garbage collection will have trouble doing their jobs of maintaining good drive speeds.

If you dont think you'll ever fill the drive then theres no reall need to overprovision. Overprovisioning just makes sure you always have space set aside.