nvme-id-nvm-ns1
Send nvme identify nvm command set specific namespace data structure, display structure
Usage
nvme [<global-options>]
id
nvm-ns
<device>
[{--uuid-index=<uuid-index> | -U
<uuid_index>}]
[{--namespace-id=<NUM> | -n
<NUM>}]
Overview
Identify NVM Command Set specific Namespace data structure for the specified NSID for the NVM Command Set specified in the CSI field.
The <device> parameter is mandatory and may be either the NVMe character device (ex: /dev/nvme0), or a namespace block device (ex: /dev/nvme0n1).
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 <NUM>, --namespace-id=<NUM> -
Use the provided namespace id for the command. If not provided, the namespace id of the block device will be used. If the command is issued to a non-block device, the parameter is required. The broadcast value 0xffffffff can also be given as all or -1.
-
-U <uuid-index>, --uuid-index=<uuid-index> -
UUID Index of the feature
Global options
The following options are defined at the top-level nvme command and are available to this subcommand:
-
--dry-run -
Print the command that would be executed, but do not actually execute it.
-
--no-ioctl-probing -
Disable probing for 64-bit IOCTL support.
-
--no-retries -
Disable retry logic on transient errors.
-
-o <fmt>, --output-format=<fmt> -
Set the reporting format to normal, tabular, 'json, or binary. Only one output format may be used at a time.
-
--output-format-version=<version> -
Select the output format version. Version 1 uses the original field naming, while version 2 (default) provides more consistent and script-friendly field names. Other versions are rejected.
-
--quiet -
Suppress informational messages. Errors are still reported, and --quiet cancels any --verbose for the library log level.
-
--set-options=<key=value>[,<key=value>...] -
Set libnvme library options for this invocation. Supported keys are force-4k, mi-probe-enabled, test-base-dir and test-sysfs-dir.
-
--timeout=<ms> -
Set the timeout for the command in milliseconds. infinite or -1 waits without a time limit (0xffffffff).
-
-v, --verbose -
Increase the level of detail in the output. May be specified multiple times to further increase verbosity.
These options can also be set as machine-wide defaults in nvme-cli.conf(5). A command-line flag always overrides the file.
Examples
• Has the program interpret the returned buffer and display the known fields in a human readable format:
# nvme id nvm-ns /dev/nvme0n1
• If using the character device or overriding namespace id:
# nvme id nvm-ns /dev/nvme0 -n 1 # nvme id nvm-ns /dev/nvme0n1 -n 1 # nvme id nvm-ns /dev/nvme0 --namespace-id=1
• Have the program return the raw structure in binary:
# nvme id nvm-ns /dev/nvme0n1 -o binary > id_ns.raw # nvme id nvm-ns /dev/nvme0n1 --output-format=binary > id_ns.raw
It is probably a bad idea to not redirect stdout when using this mode.
• Alternatively you may want to send the data to another program that can parse the raw buffer.
NVME
Part of the nvme-user suite