I have replaced my laptop's HDD with a 480 GB SSD.
I left a 20 GB gap at the end of the disk for over-provisioning (the location doesn't matter because it is a SSD). And the main partition has lots of free space.
I used the trim feature integrated to Windows for the main partition.
I then hope this SSD is correctly trimmed, but I have no proof.
Does someone know a way to find how many trimmed blocks/sectors/percentage/whatever are on a SSD?
As there is not standard for this, I'm afraid this require to communicate with the firmware, which involve different method for different SSD.
This is not a problem if this require to boot from Linux.
This is a SanDisk SDSSDA-480G
I already used SanDisk SSD Dashboard, but the values reported are only what Windows reports (this is written in the program).