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-rw-r--r-- | Documentation/nvme-wdc-vs-device-waf.1 | 84 |
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diff --git a/Documentation/nvme-wdc-vs-device-waf.1 b/Documentation/nvme-wdc-vs-device-waf.1 new file mode 100644 index 0000000..76235e8 --- /dev/null +++ b/Documentation/nvme-wdc-vs-device-waf.1 @@ -0,0 +1,84 @@ +'\" t +.\" Title: nvme-wdc-vs-device-waf +.\" Author: [FIXME: author] [see http://www.docbook.org/tdg5/en/html/author] +.\" Generator: DocBook XSL Stylesheets vsnapshot <http://docbook.sf.net/> +.\" Date: 07/14/2022 +.\" Manual: NVMe Manual +.\" Source: NVMe +.\" Language: English +.\" +.TH "NVME\-WDC\-VS\-DEVIC" "1" "07/14/2022" "NVMe" "NVMe Manual" +.\" ----------------------------------------------------------------- +.\" * Define some portability stuff +.\" ----------------------------------------------------------------- +.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ +.\" http://bugs.debian.org/507673 +.\" http://lists.gnu.org/archive/html/groff/2009-02/msg00013.html +.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ +.ie \n(.g .ds Aq \(aq +.el .ds Aq ' +.\" ----------------------------------------------------------------- +.\" * set default formatting +.\" ----------------------------------------------------------------- +.\" disable hyphenation +.nh +.\" disable justification (adjust text to left margin only) +.ad l +.\" ----------------------------------------------------------------- +.\" * MAIN CONTENT STARTS HERE * +.\" ----------------------------------------------------------------- +.SH "NAME" +nvme-wdc-vs-device-waf \- Calculates the device write amplification factor and prints both TLC and SLC results +.SH "SYNOPSIS" +.sp +.nf +\fInvme wdc vs\-device\-waf\fR <device> [\-\-output\-format=<normal|json> \-o <normal|json>] + [\-\-namespace\-id=<nsid> | \-n <nsid>] +.fi +.SH "DESCRIPTION" +.sp +For the NVMe device given, calculates the device TLC and SLC write amplification factor\&. +.sp +The <device> parameter is mandatory and may be either the NVMe character device (ex: /dev/nvme0) or block device (ex: /dev/nvme0n1)\&. +.sp +This will only work on WDC devices supporting this feature\&. Results for any other device are undefined\&. +.sp +On success it returns 0, error code otherwise\&. +.SH "OPTIONS" +.PP +\-o <format>, \-\-output\-format=<format> +.RS 4 +Set the reporting format to +\fInormal\fR, or +\fIjson\fR\&. Only one output format can be used at a time\&. Default is normal\&. +.RE +.PP +\-n <nsid>, \-\-namespace\-id=<nsid> +.RS 4 +Sets the command\(cqs nsid value to the given nsid\&. Defaults to 0xffffffff if not given\&. This option may not affect anything depending on the log page, which may or may not be specific to a namespace\&. +.RE +.SH "EXAMPLES" +.sp +.RS 4 +.ie n \{\ +\h'-04'\(bu\h'+03'\c +.\} +.el \{\ +.sp -1 +.IP \(bu 2.3 +.\} +Has the program issue WDC vs\-device\-waf plugin Command : +.sp +.if n \{\ +.RS 4 +.\} +.nf +# nvme wdc vs\-device\-waf /dev/nvme0 +.fi +.if n \{\ +.RE +.\} +.RE +.SH "NVME" +.sp +Part of the nvme\-user suite\&. |