table of contents
| NVME-ZEROES(1) | NVMe Manual | NVME-ZEROES(1) |
NAME¶
nvme-write-zeroes - Send an NVMe write zeroes command, return results
SYNOPSIS¶
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
| 04/08/2019 | NVMe |