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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>]
                        [--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 defintion.
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.
--force-unit-access, -f
Set the force-unit access flag.
--namespace-id=<nsid>, -n <nsid>
Namespace ID use in the command.
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11/15/2016 NVMe