nvme-cli/Documentation/nvme-wdc-namespace-resize.1

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.\"     Title: nvme-wdc-namespace-resize
.\"    Author: [FIXME: author] [see http://www.docbook.org/tdg5/en/html/author]
.\" Generator: DocBook XSL Stylesheets vsnapshot <http://docbook.sf.net/>
.\"      Date: 02/14/2024
.\"    Manual: NVMe Manual
.\"    Source: NVMe
.\"  Language: English
.\"
.TH "NVME\-WDC\-NAMESPACE" "1" "02/14/2024" "NVMe" "NVMe Manual"
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.SH "NAME"
nvme-wdc-namespace-resize \- Resizes the device\*(Aqs namespace\&.
.SH "SYNOPSIS"
.sp
.nf
\fInvme wdc namespace\-resize\fR <device> [\-\-nsid=<NAMESPACE ID>, \-n <NAMSPACE ID>]
                        [\-\-op_option=<OP OPTION>, \-o <OP OPTION>]
.fi
.SH "DESCRIPTION"
.sp
For the NVMe device given, sends the WDC Vendor Specific Command that modifies the namespace size reported the device\&.
.sp
The <device> parameter is mandatory NVMe character device (ex: /dev/nvme0)\&.
.sp
This will only work on WDC devices supporting this feature\&. Results for any other device are undefined\&.
.SH "OPTIONS"
.PP
\-n <NAMESPACE ID>, \-\-namespace\-id=<NAMESPACE_ID>
.RS 4
Namespace ID; ID of the namespace to resize
.RE
.PP
\-o <OP OPTION>, \-\-op\-option=<OP OPTION>
.RS 4
Overprovisioning Option; defaults to 0xF Valid Values: 0x1 \- 7% of Original TNVMCAP reported value 0x2 \- 28% of Original TNVMCAP reported value 0x3 \- 50% of Original TNVMCAP reported value 0xF \- 0% of Original TNVMCAP reported value (original config) All other values \- reserved
.RE
.SH "EXAMPLES"
.sp
.RS 4
.ie n \{\
\h'-04'\(bu\h'+03'\c
.\}
.el \{\
.sp -1
.IP \(bu 2.3
.\}
Resizes namespace 1 to 50% of the original TNVMCAP reported value:
.sp
.if n \{\
.RS 4
.\}
.nf
# nvme wdc namespace\-resize /dev/nvme0 \-n 1 \-o 3
.fi
.if n \{\
.RE
.\}
.RE
.sp
.RS 4
.ie n \{\
\h'-04'\(bu\h'+03'\c
.\}
.el \{\
.sp -1
.IP \(bu 2.3
.\}
Resizes namespace 2 to 7% of the original TNVMCAP reported value:
.sp
.if n \{\
.RS 4
.\}
.nf
# nvme wdc namespace\-resize /dev/nvme0 \-\-namespace\-id=2 \-\-op\-option=1
.fi
.if n \{\
.RE
.\}
.RE
.SH "NVME"
.sp
Part of the nvme\-user suite\&.