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|
nvme-zeroes(1)
==============
NAME
----
nvme-write-zeroes - Send an NVMe write zeroes command, return results
SYNOPSIS
--------
[verse]
'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>]
[--force]
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.
--storage-tag=<storage-tag>::
-n <storage-tag>::
Variable Sized Expected Logical Block Storage Tag(ELBST) and Expected Logical
Block Reference Tag (ELBRT), CDW2 and CDW3 (00:47) bits.
--storage-tag-check=<storage-tag-check>::
-C <storage-tag-check>::
This bit specifies the Storage Tag field shall be checked as part of end-to-end
data protection processing.
--force::
Ignore namespace is currently busy and perfome the operation
even though.
EXAMPLES
--------
No examples yet.
NVME
----
Part of the nvme-user suite
|
