# nvme-wdc-namespace-resize(1)

# nvme-wdc-namespace-resize(1) Manual Page

## NAME

nvme-wdc-namespace-resize - Resizes the device's namespace.

## SYNOPSIS

    nvme wdc namespace-resize <device> [--nsid=<NAMSPACE ID>, -n <NAMSPACE ID>] [--op_option=<OP OPTION>, -o <OP OPTION>]

## DESCRIPTION

For the NVMe device given, sends the WDC Vendor Specific Command that modifies the namespace size reported by the device.

The <device> parameter is mandatory NVMe character device (ex: /dev/nvme0).

This will only work on WDC devices supporting this feature. Results for any other device are undefined.

## OPTIONS

-n <NAMSPACE ID>
--namespace-id=<NAMSPACE_ID>

  Namespace ID; ID of the namespace to resize

-o <OP OPTION>
--op-option=<OP OPTION>

  Overprovisioning Option; defaults to 0xF

      Valid Values:
      0x1 - 7% of Original TNVMCAP reported value
      0x2 - 28% of Original TNVMCAP reported value
      0x3 - 50% of Original TNVMCAP reported value
      0xF - 0% of Original TNVMCAP reported value (original config)
      All other values - reserved

## EXAMPLES

- Resizes namespace 1 to 50% of the original TNVMCAP reported value:

      # nvme wdc namespace-resize /dev/nvme0 -n 1 -o 3

- Resizes namespace 2 to 7% of the original TNVMCAP reported value:

      # nvme wdc namespace-resize /dev/nvme0 --namespace-id=2 --op-option=1

## NVME

Part of the nvme-user suite.