54 lines
1.3 KiB
Text
54 lines
1.3 KiB
Text
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nvme-wdc-vs-device-waf(1)
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=========================
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NAME
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----
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nvme-wdc-vs-device-waf - Calculates the device write amplification factor and
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prints both TLC and SLC results
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SYNOPSIS
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--------
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[verse]
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'nvme wdc vs-device-waf' <device> [--output-format=<normal|json> -o <normal|json>]
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[--namespace-id=<nsid> | -n <nsid>]
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DESCRIPTION
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-----------
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For the NVMe device given, calculates the device TLC and SLC write
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amplification factor.
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The <device> parameter is mandatory and may be either the NVMe character
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device (ex: /dev/nvme0) or block device (ex: /dev/nvme0n1).
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This will only work on WDC devices supporting this feature.
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Results for any other device are undefined.
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On success it returns 0, error code otherwise.
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OPTIONS
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-------
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-o <format>::
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--output-format=<format>::
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Set the reporting format to 'normal', or
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'json'. Only one output format can be used at a time.
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Default is normal.
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-n <nsid>::
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--namespace-id=<nsid>::
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Sets the command's nsid value to the given nsid. Defaults to
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0xffffffff if not given. This option may not affect anything
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depending on the log page, which may or may not be specific to
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a namespace.
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EXAMPLES
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--------
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* Has the program issue WDC vs-device-waf plugin Command :
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+
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------------
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# nvme wdc vs-device-waf /dev/nvme0
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------------
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NVME
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----
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Part of the nvme-user suite.
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