GSP
Quick Navigator

Search Site

Unix VPS
A - Starter
B - Basic
C - Preferred
D - Commercial
MPS - Dedicated
Previous VPSs
* Sign Up! *

Support
Contact Us
Online Help
Handbooks
Domain Status
Man Pages

FAQ
Virtual Servers
Pricing
Billing
Technical

Network
Facilities
Connectivity
Topology Map

Miscellaneous
Server Agreement
Year 2038
Credits
 

USA Flag

 

 

Man Pages
NVME-WRITE-ZEROES(1) NVMe Manual NVME-WRITE-ZEROES(1)

nvme-write-zeroes - Send an NVMe write zeroes command, return results

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]
[--timeout=<timeout> | -t <timeout>]

The Write Zeroes command is used to set a range of logical blocks to 0.

-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.

-t <timeout>, --timeout=<timeout>

Override default timeout value. In milliseconds.

No examples yet.

Part of the nvme-user suite

10/31/2024 NVMe

Search for    or go to Top of page |  Section 1 |  Main Index

Powered by GSP Visit the GSP FreeBSD Man Page Interface.
Output converted with ManDoc.