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NVME-ZEROES(1) | NVMe Manual | NVME-ZEROES(1) |
NAME¶
nvme-write-zeroes - Send an NVMe write zeroes command, return resultsSYNOPSIS¶
nvme-write-zeroes <device> [--start-block=<slba> | -s <slba>] [--block-count=<nlb> | -c <nlb>] [--ref-tag=<reftag> | -r <reftag>] [--prinfo=<prinfo> | -p <prinfo>] [--app-tag-mask=<appmask> | -m <appmask>] [--app-tag=<apptag> | -a <apptag>] [--deac | -d] [--limited-retry | -l] [--force-unit-access | -f] [--namespace-id=<nsid> | -n <nsid>]
DESCRIPTION¶
The Write Zeroes command is used to set a range of logical blocks to 0.OPTIONS¶
--start-block=<slba>, -s <slba>Start block.
--block-count=<nlb>, -c <nlb>
Number of logical blocks to write zeroes.
--prinfo=<prinfo>, -p <prinfo>
Protection Information field definition.
Bit | Description |
3 | PRACT: Protection Information Action. When set to 1, PI is stripped/inserted on read/write when the block format’s metadata size is 8. When set to 0, metadata is passes. |
2:0 | PRCHK: Protection Information Check: |
2 | Set to 1 enables checking the guard tag |
1 | Set to 1 enables checking the application tag |
0 | Set to 1 enables checking the reference tag |
--ref-tag=<reftag>, -r <reftag>
Optional reftag when used with protection
information.
--app-tag-mask=<appmask>, -m <appmask>
Optional application tag mask when used with protection
information.
--app-tag=<apptag>, -a <apptag>
Optional application tag when used with protection
information.
--limited-retry, -l
Sets the limited retry flag.
--deac, -d
Sets the DEAC bit, requesting controller deallocate the
logical blocks.
--force-unit-access, -f
Set the force-unit access flag.
--namespace-id=<nsid>, -n <nsid>
Namespace ID use in the command.
EXAMPLES EXAMPLES
No examples yet. NVME
Part of the nvme-user suite
04/24/2020 | NVMe |