nvme-micron-id-ctrl(1)

Usage

nvme [<global-options>] micron id-ctrl <device>

For the NVMe device given, sends an identify controller command and provides the result with Micron vendor-specific fields decoded.

The <device> parameter is mandatory and may be either the NVMe character device (ex: /dev/nvme0), or a namespace block device (ex: /dev/nvme0n1).

This command extends the standard Identify Controller output with Micron-specific fields:

PMS (Power Measurement Support)

Bit 21 of CTRATT (Controller Attributes). Indicates whether the controller supports power measurement.

IPMSR (Interval Power Measurement Sample Rate)

Located at bytes 392-393 in the Identify Controller reserved area. Specifies the sample rate for interval power measurement.

MSMT (Maximum Stop Measurement Time)

Located at bytes 394-395 in the Identify Controller reserved area. Specifies the maximum time to stop power measurement.

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.

-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.

• Display Identify Controller in human-readable format:

# nvme micron id-ctrl /dev/nvme0

• Display Identify Controller in JSON format:

# nvme micron id-ctrl /dev/nvme0 -o json

Part of the nvme-user suite