tldr/pages/linux/blkdiscard.md

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2019-10-03 23:37:08 +03:00
# 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}}`