blkdiscard: add page (#3292)

2019-10-03 16:37:08 -04:00
parent cb3dde8502
commit 43be99e963
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--- a/pages/linux/blkdiscard.md
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+# 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}}`