lejeczek schreef op 13-02-2017 12:59: > Does one have to flag mounts with discard for both crypttab and fstab > in order for TRIM to be in effect? > Or just one? Just crypttab? Cryptsetup has a flag but I don't know how it is evidenced in crypttab, it is definitely required. The file system (ie. ext4, or tune2efs -o discard) also requires it.