OS Manuals

nvme-get-property(1)

nvme-get-property - Reads and shows the defined NVMe controller property for NVMe over Fabric

NVME-GET-PROPERTY(1) NVMe Manual NVME-GET-PROPERTY(1)

nvme-get-property - Reads and shows the defined NVMe controller property for NVMe over Fabric

nvme [<global-options>] get-property <device>

[--offset=<offset> | -O <offset>]

Reads and shows the defined NVMe controller property for NVMe over Fabric.

-O <offset>, --offset=<offset>

The offset of the property. One of CAP=0x0, VS=0x8, CC=0x14, CSTS=0x1c, NSSR=0x20

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.

--timeout=<ms>

Set the timeout for the command in milliseconds.

-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.

•The following will run the get-property command with offset 0

# nvme get-property /dev/nvme0 --offset=0x0 --verbose

Currently the CAP value is truncated to 32 bits due to a limitation in the ioctl interface.

In a recent enough kernel, the 64 bit value is shown in kernel traces.

•First enable traces by this command

# echo 1 > /sys/kernel/debug/tracing/events/nvme/enable

•Then look for NVMe Fabrics command (0x7f) at trace

/sys/kernel/debug/tracing/trace

Part of the nvme-user suite

09/18/2026 NVMe

nvme-cli 3.1-r1 · os · ingested 2026-10-08