4 ms·

If a logical block address is not mapped to any physical flash memory addresses, then the SSD can return zeros for a read request immediately, without touching

If a logical block address is not mapped to any physical flash memory addresses, then the SSD can return zeros for a read request immediately, without touching the flash.

stavros 2y ago
Does the mapping happen on first write? Is TRIM then a command that signals the SSD to unmap that block?
- BeeOnRope 2y ago
  Yes.