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>]
                        [--storage-tag<storage-tag> | -S <storage-tag>]
                        [--storage-tag-check<storage-tag-check> | -C <storage-tag-check>]
                        [--dir-type=<dtype> | -T <dtype>]
                        [--dir-spec=<dspec> | -D <dspec>]
                        [--output-format=<fmt> | -o <fmt>] [--verbose | -v]
DESCRIPTION
The Write Zeroes command is used to set a range of logical blocks to 0.
OPTIONS
- -s <slba>
- --start-block=<slba>
- 
Start block. 
- -c <nlb>
- --block-count=<nlb>
- 
Number of logical blocks to write zeroes. 
- -p <prinfo>
- --prinfo=<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 
- -r <reftag>
- --ref-tag=<reftag>
- 
Optional reftag when used with protection information. 
- -m <appmask>
- --app-tag-mask=<appmask>
- 
Optional application tag mask when used with protection information. 
- -a <apptag>
- --app-tag=<apptag>
- 
Optional application tag when used with protection information. 
- -l
- --limited-retry
- 
Sets the limited retry flag. 
- -d
- --deac
- 
Sets the DEAC bit, requesting controller deallocate the logical blocks. 
- -f
- --force-unit-access
- 
Set the force-unit access flag. 
- -n <nsid>
- --namespace-id=<nsid>
- 
Namespace ID use in the command. 
- -S <storage-tag>
- --storage-tag=<storage-tag>
- 
Variable Sized Logical Block Storage Tag(LBST). 
- -C <storage-tag-check>
- --storage-tag-check=<storage-tag-check>
- 
This bit specifies the Storage Tag field shall be checked as part of end-to-end data protection processing. 
- -T <dtype>
- --dir-type=<dtype>
- 
Directive type 
- -D <dspec>
- --dir-spec=<dspec>
- 
Directive specific 
- -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. 
EXAMPLES
No examples yet.
NVME
Part of the nvme-user suite