Translations:Dm-crypt full disk encryption/44/en

Cryptsetup can transparently forward discard operations to an SSD. This feature is activated by using the  option in combination with. Enabling discards on an encrypted SSD can be a measure to ensure effective wear leveling and longevity, especially if the full disk is encrypted. For an in detail discussion about the security implications, have a look at the cryptsetup FAQ and the man page of cryptsetup.