nvme-cmdset-ind-id-ns − Send NVMe I/O Command Set Independent Identify Namespace, return result and structure.
nvme
cmdset−ind−id−ns <device>
[−−namespace−id=<nsid> | −n
<nsid>]
[−b | −−raw−binary]
[−−human−readable | −H]
[−−output−format=<fmt> | −o
<fmt>]
For the NVMe device given, sends an I/O Command Set Independent identify namespace 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.
−n <nsid>, −−namespace−id=<nsid>
Retrieve the identify namespace 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. This overrides the vendor specific and human readable options.
−H, −−human−readable
This option will parse and format many of the bit fields into human−readable formats.
−o <format>, −−output−format=<format>
Set the reporting format to normal, json, or binary. Only one output format can be used at a time.
• Has the program interpret the returned buffer and display the known fields in a human readable format:
# nvme cmdset−ind−id−ns /dev/nvme0n1
• If using the character device or overriding namespace id:
# nvme
cmdset−ind−id−ns /dev/nvme0 −n 1
# nvme cmdset−ind−id−ns /dev/nvme0n1
−n 1
# nvme cmdset−ind−id−ns /dev/nvme0
−−namespace−id=1
• Have the program return the raw structure in binary:
# nvme
cmdset−ind−id−ns /dev/nvme0n1
−−raw−binary > id_ns.raw
# nvme cmdset−ind−id−ns /dev/nvme0n1
−b > id_ns.raw
It is probably a bad idea to not redirect stdout when using this mode.
Part of the nvme−user suite