diff options
author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2022-07-26 05:11:33 +0000 |
---|---|---|
committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2022-07-26 05:11:33 +0000 |
commit | a751023422eadf87cd8d6484878193a4914a9d85 (patch) | |
tree | 3fca0ae6325173fc2583e7d88abe4c38e6193277 /Documentation/nvme-wdc-vs-device-waf.txt | |
parent | Adding upstream version 2.0. (diff) | |
download | nvme-cli-upstream/2.1_rc0.tar.xz nvme-cli-upstream/2.1_rc0.zip |
Adding upstream version 2.1~rc0.upstream/2.1_rc0
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r-- | Documentation/nvme-wdc-vs-device-waf.txt | 53 |
1 files changed, 53 insertions, 0 deletions
diff --git a/Documentation/nvme-wdc-vs-device-waf.txt b/Documentation/nvme-wdc-vs-device-waf.txt new file mode 100644 index 0000000..55095a4 --- /dev/null +++ b/Documentation/nvme-wdc-vs-device-waf.txt @@ -0,0 +1,53 @@ +nvme-wdc-vs-device-waf(1) +========================= + +NAME +---- +nvme-wdc-vs-device-waf - Calculates the device write amplification factor and +prints both TLC and SLC results + +SYNOPSIS +-------- +[verse] +'nvme wdc vs-device-waf' <device> [--output-format=<normal|json> -o <normal|json>] + [--namespace-id=<nsid> | -n <nsid>] + +DESCRIPTION +----------- +For the NVMe device given, calculates the device TLC and SLC write +amplification factor. + +The <device> parameter is mandatory and may be either the NVMe character +device (ex: /dev/nvme0) or block device (ex: /dev/nvme0n1). + +This will only work on WDC devices supporting this feature. +Results for any other device are undefined. + +On success it returns 0, error code otherwise. + +OPTIONS +------- +-o <format>:: +--output-format=<format>:: + Set the reporting format to 'normal', or + 'json'. Only one output format can be used at a time. + Default is normal. + +-n <nsid>:: +--namespace-id=<nsid>:: + Sets the command's 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. + +EXAMPLES +-------- +* Has the program issue WDC vs-device-waf plugin Command : ++ +------------ +# nvme wdc vs-device-waf /dev/nvme0 +------------ + +NVME +---- +Part of the nvme-user suite. |