nvme-sanitize - Send NVMe Sanitize Command, return result
nvme sanitize <device> [--no-dealloc | -d] [--oipbp | -i]
[--owpass=<overwrite-pass-count> | -n <overwrite-pass-count>]
[--ause | -u] [--sanact=<action> | -a <action>]
[--ovrpat=<overwrite-pattern> | -p <overwrite-pattern>]
[--emvs | -e] [--force]
[--output-format=<fmt> | -o <fmt>] [--verbose | -v]
For the NVMe device given, sends a Sanitize command and provides
the result.
The <device> parameter is mandatory NVMe character device
(ex: /dev/nvme0).
On success it returns 0, error code otherwise.
-d, --no-dealloc
No Deallocate After Sanitize: If set, then the controller
shall not deallocate any logical blocks as a result of successfully completing
the sanitize operation. If cleared, then the controller should deallocate
logical blocks as a result of successfully completing the sanitize operation.
This bit shall be ignored if the Sanitize Action field is set to 001b (i.e.,
Exit Failure Mode).
-i, --oipbp
Overwrite Invert Pattern Between Passes: If set, then the
Overwrite Pattern shall be inverted between passes. If cleared, then the
overwrite pattern shall not be inverted between passes. This bit shall be
ignored unless the Sanitize Action field is set to 011b (i.e.,
Overwrite).
-n <overwrite-pass-count>,
--owpass=<overwrite-pass-count>
Overwrite Pass Count: This field specifies the number of
overwrite passes (i.e., how many times the media is to be overwritten) using
the data from the Overwrite Pattern field of this command. A value of 0
specifies 16 overwrite passes. This field shall be ignored unless the Sanitize
Action field is set to 011b (i.e., Overwrite).
-u, --ause
Allow Unrestricted Sanitize Exit: If set, then the
sanitize operation is performed in unrestricted completion mode. If cleared
then the sanitize operation is performed in restricted completion mode. This
bit shall be ignored if the Sanitize Action field is set to 001b (i.e., Exit
Failure Mode).
-a <action>, --sanact=<action>
Sanitize Action:
| Value |
Definition |
| 0x00 |
Reserved |
| 0x01 | exit-failure |
Exit Failure Mode |
| 0x02 | start-block-erase |
Start a Block Erase sanitize operation |
| 0x03 | start-overwrite |
Start an Overwrite sanitize operation |
| 0x04 | start-crypto-erase |
Start a Crypto Erase sanitize
operation |
| 0x05 | exit-media-verification |
Exit Media Verification State |
-p <overwrite-pattern>,
--ovrpat=<overwrite-pattern>
Overwrite Pattern: This field is ignored unless the
Sanitize Action field in Command Dword 10 is set to 011b (i.e., Overwrite).
This field specifies a 32-bit pattern that is used for the Overwrite sanitize
operation.
-e, --emvs
Enter Media Verification State: If set, then the Media
Verification state shall be entered if sanitize processing completes
successfully. If cleared, then this bit shall have no effect. If SANACT field
does not specify starting a sanitize operation (i.e., is set to any value
other than 010b, 011b, or 100b), then this bit shall be ignored by the
controller.
--force
Ignore namespace is currently busy and performed the
operation even though.
-o <fmt>, --output-format=<fmt>
Set the reporting format to normal, json or
binary. Only one output format can be used at a time.
-v, --verbose
Increase the information detail in the output.
•Has the program issue Sanitize Command :
# nvme sanitize /dev/nvme0 -a 0x02
# nvme sanitize /dev/nvme0 --sanact=0x01
# nvme sanitize /dev/nvme0 --sanact=start-overwrite
Part of the nvme-user suite.
Visit the GSP FreeBSD Man Page Interface.