nvme-wdc-vs-device-waf - Calculates the device write amplification factor and prints both TLC and SLC

       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.

       •   Has the program issue WDC vs-device-waf plugin Command :

               # nvme wdc vs-device-waf /dev/nvme0

       nvme-wdc-vs-device-waf - Calculates the device write amplification factor and prints both TLC and SLC
       results

       Part of the nvme-user suite.

NVMe                                               02/16/2025                               NVME-WDC-VS-DEVIC(1)

       -o <fmt>, --output-format=<fmt>
           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.

nvmewdcvs-device-waf <device> [--output-format=<normal|json> -o <normal|json>]
                               [--namespace-id=<nsid> | -n <nsid>]