Free space on SSD (over provisioning) per disk or per partition?
- by Horst Walter
It is recommended to keep some percentage of an SSD free for relocation ( Is free space required on a SSD for performance? ).
However, is this rule meant per partition or per disk (whole SSD)? So, if I want to keep 20% free for performance reasons, is it acceptable if one partition is 95% filled, while another is almost empty and the overall empty disk space still is 20.
Or does each partition has to fulfill the rule of 20% empty space?