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30 .\" nvmecontrol man page.
32 .\" Author: Jim Harris <jimharris@FreeBSD.org>
41 .Nd NVM Express control utility
52 .Aq Fl n Ar num_threads
53 .Aq Fl o Ar read|write
55 .Aq Fl s Ar size_in_bytes
56 .Aq Fl t Ar time_in_sec
65 .Op Fl v Ar vendor-string
71 .Op Fl f Ar path_to_firmware
78 .Op Fl w workload_hint
81 .Op Fl o path_template
85 .Op Fl o path_template
88 .Ic wdc get-crash-dump
89 .Op Fl o path_template
95 .\" .Ic wdc purge-monitor
98 NVM Express (NVMe) is a storage protocol standard, for SSDs and other
99 high-speed storage devices over PCI Express.
102 The logpage command knows how to print log pages of various types.
103 It also knows about vendor specific log pages from hgst/wdc and intel.
104 Page 0xc1 for hgst/wdc contains the advanced smart information about
106 Page 0xc1 is read latency stats for intel.
107 Page 0xc2 is write latency stats for intel.
108 Page 0xc5 is temperature stats for intel.
109 Page 0xca is advanced smart information for intel.
111 The various wdc command retrieve log data from the wdc/hgst drives.
114 flag specifies a path template to use to output the files.
115 Each file takes the path template (which defaults to nothing), appends
116 the drive's serial number and the type of dump it is followed
118 These logs must be sent to the vendor for analysis.
119 This tool only provides a way to extract them.
121 .Dl nvmecontrol devlist
123 Display a list of NVMe controllers and namespaces along with their device nodes.
125 .Dl nvmecontrol identify nvme0
127 Display a human-readable summary of the nvme0 IDENTIFY_CONTROLLER data.
129 .Dl nvmecontrol identify -x -v nvme0ns1
131 Display an hexadecimal dump of the nvme0 IDENTIFY_NAMESPACE data for namespace
134 .Dl nvmecontrol perftest -n 32 -o read -s 512 -t 30 nvme0ns1
136 Run a performance test on nvme0ns1 using 32 kernel threads for 30 seconds. Each
137 thread will issue a single 512 byte read command. Results are printed to
138 stdout when 30 seconds expires.
140 .Dl nvmecontrol reset nvme0
142 Perform a controller-level reset of the nvme0 controller.
144 .Dl nvmecontrol logpage -p 1 nvme0
146 Display a human-readable summary of the nvme0 controller's Error Information Log.
147 Log pages defined by the NVMe specification include Error Information Log (ID=1),
148 SMART/Health Information Log (ID=2), and Firmware Slot Log (ID=3).
150 .Dl nvmecontrol logpage -p 1 -x nvme0
152 Display a hexadecimal dump of the nvme0 controller's Error Information Log.
154 .Dl nvmecontrol firmware -s 2 -f /tmp/nvme_firmware nvme0
156 Download the firmware image contained in "/tmp/nvme_firmware" to slot 2 of the
157 nvme0 controller, but do not activate the image.
159 .Dl nvmecontrol firmware -s 4 -a nvme0
161 Activate the firmware in slot 4 of the nvme0 controller on the next reset.
163 .Dl nvmecontrol firmware -s 7 -f /tmp/nvme_firmware -a nvme0
165 Download the firmware image contained in "/tmp/nvme_firmware" to slot 7 of the
166 nvme0 controller and activate it on the next reset.
168 .Dl nvmecontrol power -l nvme0
170 List all the current power modes.
172 .Dl nvmecontrol power -p 3 nvme0
174 Set the current power mode.
176 .Dl nvmecontrol power nvme0
178 Get the current power mode.
182 was developed by Intel and originally written by
183 .An Jim Harris Aq Mt jimharris@FreeBSD.org .
185 This man page was written by
186 .An Jim Harris Aq Mt jimharris@FreeBSD.org .