88 lines
2.8 KiB
Groff
88 lines
2.8 KiB
Groff
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.\"
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.\" Copyright (c) 2012 Intel Corporation
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.\" All rights reserved.
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.\"
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.\" Redistribution and use in source and binary forms, with or without
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.\" modification, are permitted provided that the following conditions
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.\" are met:
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.\" 1. Redistributions of source code must retain the above copyright
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.\" notice, this list of conditions, and the following disclaimer,
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.\" without modification.
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.\" 2. Redistributions in binary form must reproduce at minimum a disclaimer
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.\" substantially similar to the "NO WARRANTY" disclaimer below
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.\" ("Disclaimer") and any redistribution must be conditioned upon
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.\" including a substantially similar Disclaimer requirement for further
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.\" binary redistribution.
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.\"
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.\" NO WARRANTY
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.\" THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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.\" "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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.\" LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
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.\" A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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.\" HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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.\" STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
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.\" IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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.\" POSSIBILITY OF SUCH DAMAGES.
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.\"
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.\" nvmecontrol man page.
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.\"
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.\" Author: Jim Harris <jimharris@FreeBSD.org>
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.\"
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.\" $FreeBSD$
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.\"
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.Dd September 17, 2012
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.Dt NVMECONTROL 8
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.Os
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.Sh NAME
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.Nm nvmecontrol
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.Nd NVM Express control utility
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.Sh SYNOPSIS
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.Nm
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.Ic devlist
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.Nm
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.Ic identify
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.Op Fl v
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.Op Fl x
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.Aq device id
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.Nm
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.Ic perftest
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.Aq Fl n Ar num_threads
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.Aq Fl o Ar read|write
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.Op Fl p
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.Aq Fl s Ar size_in_bytes
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.Aq Fl t Ar time_in_sec
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.Aq device id
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.Sh DESCRIPTION
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NVM Express (NVMe) is a storage protocol standard, for SSDs and other
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high-speed storage devices over PCI Express.
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.Sh EXAMPLES
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.Dl nvmecontrol devlist
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.Pp
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Display a list of NVMe controllers and namespaces along with their device nodes.
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.Dl nvmecontrol identify nvme0
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.Pp
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Display a human-readable summary of the nvme0 IDENTIFY_CONTROLLER data.
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.Pp
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.Dl nvmecontrol identify -x -v nvme0ns1
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.Pp
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Display a hexadecimal dump of the nvme0 IDENTIFY_NAMESPACE data for namespace
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1.
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.Pp
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.Dl nvmecontrol perftest -n 32 -o read -s 512 -t 30 nvme0ns1
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.Pp
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Run a performance test on nvme0ns1 using 32 kernel threads for 30 seconds. Each
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thread will issue a single 512 byte read command. Results are printed to
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stdout when 30 seconds expires.
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.Pp
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.Sh AUTHORS
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.An -nosplit
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.Nm
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was developed by Intel and originally written by
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.An Jim Harris Aq jimharris@FreeBSD.org .
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.Pp
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This man page was written by
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.An Jim Harris Aq jimharris@FreeBSD.org .
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