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freebsd/sbin/nvmecontrol/nvmecontrol.8
2012-09-18 08:12:28 +00:00

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.\"
.\" Copyright (c) 2012 Intel Corporation
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.\" including a substantially similar Disclaimer requirement for further
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.\" nvmecontrol man page.
.\"
.\" Author: Jim Harris <jimharris@FreeBSD.org>
.\"
.\" $FreeBSD$
.\"
.Dd September 17, 2012
.Dt NVMECONTROL 8
.Os
.Sh NAME
.Nm nvmecontrol
.Nd NVM Express control utility
.Sh SYNOPSIS
.Nm
.Ic devlist
.Nm
.Ic identify
.Op Fl v
.Op Fl x
.Aq device id
.Nm
.Ic perftest
.Aq Fl n Ar num_threads
.Aq Fl o Ar read|write
.Op Fl p
.Aq Fl s Ar size_in_bytes
.Aq Fl t Ar time_in_sec
.Aq device id
.Sh DESCRIPTION
NVM Express (NVMe) is a storage protocol standard, for SSDs and other
high-speed storage devices over PCI Express.
.Sh EXAMPLES
.Dl nvmecontrol devlist
.Pp
Display a list of NVMe controllers and namespaces along with their device nodes.
.Dl nvmecontrol identify nvme0
.Pp
Display a human-readable summary of the nvme0 IDENTIFY_CONTROLLER data.
.Pp
.Dl nvmecontrol identify -x -v nvme0ns1
.Pp
Display a hexadecimal dump of the nvme0 IDENTIFY_NAMESPACE data for namespace
1.
.Pp
.Dl nvmecontrol perftest -n 32 -o read -s 512 -t 30 nvme0ns1
.Pp
Run a performance test on nvme0ns1 using 32 kernel threads for 30 seconds. Each
thread will issue a single 512 byte read command. Results are printed to
stdout when 30 seconds expires.
.Sh AUTHORS
.An -nosplit
.Nm
was developed by Intel and originally written by
.An Jim Harris Aq jimharris@FreeBSD.org .
.Pp
This man page was written by
.An Jim Harris Aq jimharris@FreeBSD.org .