blkdiscard

Discards device sectors on storage devices. Useful for SSDs.

Discard all sectors on a device, removing all data:

blkdiscard /dev/{{device}}

Securely discard all blocks on a device, removing all data:

blkdiscard --secure /dev/{{device}}

Discard the first 100MB of a device:

blkdiscard --length {{100MB}} /dev/{{device}}