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A comment on Transforming a QLC SSD into an SLC SSD. Parent comment

Re:Transforming a QLC SSD into an SLC SSD by wtallis on Sunday May 19, 2024 @12:00PM (#40407774)
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.
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Re:Transforming a QLC SSD into an SLC SSD by stavros on Sunday May 19, 2024 @02:54PM (#40408959)
Does the mapping happen on first write? Is TRIM then a command that signals the SSD to unmap that block?
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Re:Transforming a QLC SSD into an SLC SSD by BeeOnRope on Sunday May 19, 2024 @04:55PM (#40409680)
Yes.
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