NAME

       nvme-ns-descs - Send NVMe Identify for a list of Namespace Identification Descriptor
       structure, return result and structure

SYNOPSIS

       nvme ns-descs <device> [--namespace-id=<nsid> | -n <nsid>]
                               [--raw-binary | -b]
                               [--output-format=<fmt> | -o <fmt>]

DESCRIPTION

       For the NVMe device given, sends an identify for a list of namespace identification
       descriptor structures command and provides the result and returned structure.

       The <device> parameter is mandatory and may be either the NVMe character device (ex:
       /dev/nvme0), or a namespace block device (ex: /dev/nvme0n1). If the character device is
       given, the '--namespace-id' option is mandatory, otherwise it will use the ns-id of the
       namespace for the block device you opened. For block devices, the ns-id used can be
       overridden with the same option.

       On success, the structure may be returned in one of several ways depending on the option
       flags; the structure may be parsed by the program or the raw buffer may be printed to
       stdout.

OPTIONS

       -n <nsid>, --namespace-id=<nsid>
           Retrieve the identify namespace identification descriptor structure for the given
           nsid. This is required for the character devices, or overrides the block nsid if
           given.

       -b, --raw-binary
           Print the raw buffer to stdout. Structure is not parsed by program.

       -o <format>, --output-format=<format>
           Set the reporting format to normal, json, or binary. Only one output format can be
           used at a time.

EXAMPLES

       •   If using the character device or overriding namespace #2:

               # nvme ns-descs /dev/nvme0 -n 1
               # nvme ns-descs /dev/nvme0n1 -n 2
               # nvme ns-descs /dev/nvme0 --namespace-id=1

       •   Have the program return the raw structure in binary:

               # nvme ns-descs /dev/nvme0n1 --raw-binary > ns_descs.raw
               # nvme ns-descs /dev/nvme0n1 -b > ns_descs.raw

           It is probably a bad idea to not redirect stdout when using this mode.

NVME

       Part of the nvme-user suite