SYNOPSIS
nvme [<global-options>] id ns-granularity <device>
DESCRIPTION
Send a Identify Namespace Granularity List command command to the specified device, return results.
The <device> parameter is mandatory and may be either the NVMe character device (ex: /dev/nvme0) or block device (ex: /dev/nvme0n1).
On success it returns 0, error code otherwise.
The bare nvme id-ns-granularity form (without a space) still works as a deprecated alias and will be removed in a future major version. New scripts should use nvme id ns-granularity instead.
OPTIONS
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 issue a id-ns-granularity to display structure.
# nvme id ns-granularity /dev/nvme0
NVME
Part of the nvme-user suite.