NVME-FEAT-POWER-M(1)

💅 NVME-FEAT-POWER-M(1) — nvme-feat-power-mgmt

okay so bestie, welcome to the NVMe Manual page for nvme-feat-power-mgmt, and no cap, this is the one that gets and sets your power management feature. let's go 💖

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✨ NAME ✨

nvme-feat-power-mgmt — get and set power management feature 🎀

🦋 SYNOPSIS 🦋

nvme [<global-options>] feat power-mgmt <device>
                        [--ps=<ps> | -p <ps>] [--wh=<wh> | -w <wh>]
                        [--sel=<select> | -S <select>] [--save | -s]

🌸 DESCRIPTION 🌸

Get and set power management feature. that's the whole vibe, like literally both directions in one little command 👑

The <device> parameter is mandatory — it's not optional, it's not a suggestion, it is the moment. and it can be either of these:

• the NVMe character device (ex: /dev/nvme0), or
• a namespace block device (ex: /dev/nvme0n1)

so if you pass the setting option (--ps), the command will update the power management configuration. if you omit --ps, it will retrieve and display the current configuration instead. one flag decides which whole personality it's giving 😌

On success it returns 0, error code otherwise. periodt.

💅 OPTIONS 💅

• -p <ps>, --ps=<ps> — Power state. this is where you specify the power state to transition the controller to 🧚
• -w <wh>, --wh=<wh> — Workload hint. it provides a hint to the controller about the workload characteristics, like a little heads-up so it knows what's coming 🔥
• -S <select>, --sel=<select> — Select (SEL): this field specifies which value of the attributes to return in the provided data. the iconic lineup:
  • 0 — current — Current
  • 1 — default — Default
  • 2 — saved — Saved
  • 3 — supported — Supported capabilities
• -s, --save — Save the attribute so that it persists through all power states and resets. the "make it stick" button, we love her 💖

🌈 GLOBAL OPTIONS 🌈

bestie these live at the top-level nvme command, so they're available to this subcommand too. main character flags, honestly:

• --dry-run — Print the command that would be executed, but do not actually execute it. manifesting the command without committing to it 🙈
• --no-ioctl-probing — Disable probing for 64-bit IOCTL support.
• --no-retries — Disable retry logic on transient errors. one shot, no do-overs 💀
• -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 — pick your fighter, not all four ⭐
• --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. she's silencing the group chat but still reading the important texts 😭
• --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). she'll wait forever, lowkey devoted 🕰️
• -v, --verbose — Increase the level of detail in the output. May be specified multiple times to further increase verbosity. stack her like accessories 💜

these options can also be set as machine-wide defaults in nvme-cli.conf(5). A command-line flag always overrides the file. no cap, the flag wins every time 👑

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🍓 EXAMPLES 🍓

• Has the program issue a feat power-mgmt to get the current configuration:

# nvme feat power-mgmt /dev/nvme0

• Has the program issue a feat power-mgmt to set power state and workload hint:

# nvme feat power-mgmt /dev/nvme0 --ps=1 --wh=2 --save

👑 NVME 👑

Part of the nvme-user suite. icons only, fr fr 🌟

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and that's the page, bestie 🎀 huge thank you to the NVMe crew for this one — this copy is dated 10/30/2026, so go slay some power states and remember: --save it or lose it 💖✨