About

TRIM is a command that tells a solid-state drive () that a block of memory is no longer in use and may be discarded or overwritten. It can improve drive lifespan because the drive no longer has to copy unused data during garbage collection, and can increase by increasing the number of empty pages, which can be written to more quickly than an overwrite.

Using the command requires operating-system and support. It is supported in most operating systems since around 2010.

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