NVME-HUAWEI-ID-CT(1)

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version 3.2 · 14 versions
, in arch rolling

💅 nvme-huawei-id-ctrl — bestie edition 💅

okay so this is a page from the NVMe Manual (the NVME-HUAWEI-ID-CT(1) one, iykyk) and it's about sending an Identify Controller command to your Huawei NVMe drive and getting the tea back. let's get into it 🫶

✨ NAME ✨

nvme-huawei-id-ctrl — send NVMe Identify Controller, get the result and the structure back. literally the whole package 💖

✨ SYNOPSIS ✨

nvme [<global-options>] huawei id-ctrl <device>
                        [--vendor-specific | -v]
                        [--raw-binary | -b]
                        [--human-readable | -H]

✨ DESCRIPTION ✨

So for the NVMe device you hand it, it sends an identify controller command and gives you back the result plus the returned structure. simple, iconic, no notes.

The <device> parameter is mandatory — you gotta give it something. it can be either the NVMe character device (ex: /dev/nvme0), or a namespace block device (ex: /dev/nvme0n1). either one works, pick your fighter 🎀

⚠️ this will only work on Huawei devices that support this feature. results for any other device are undefined — and like, undefined means undefined, bestie, don't come crying to me 😭

On success, the structure may be returned in one of several ways depending on the option flags — either the program parses it for you, or the raw buffer gets printed straight to stdout. your call 💅

And if you do have the program decode the output for readability? this version will decode the Huawei vendor unique portions of the structure too. slay, we love a specialist 🔥

✨ OPTIONS ✨

  • -b, --raw-binary — print the raw buffer to stdout. the structure is not parsed by the program. heads up though: this overrides the vendor specific and human readable options. it's giving "main character energy, everyone else go home" 👑
  • -v, --vendor-specific — in addition to parsing the known fields, this dumps the vendor specific region of the structure in hex, with ascii interpretation. hex and ascii, we're fancy like that 🦋
  • -H, --human-readable — display values in a human-readable format where possible. deprecated, use --verbose. ngl she's retired but we still list her out of respect 💀

✨ GLOBAL OPTIONS ✨

these are defined at the top-level nvme command, and they're available to this subcommand too. so yes, you can absolutely use them here 🌈

  • --dry-run — print the command that would be executed, but don't actually execute it. manifesting without the commitment ✨
  • --no-ioctl-probing — disable probing for 64-bit IOCTL support. we're skipping the vibe check 🔍
  • --no-retries — disable retry logic on transient errors. one shot, one opportunity 🎯
  • -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 one, bestie, we can't do 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 — no custom versions, this is a closed guest list 🙈
  • --quiet — suppress informational messages. errors are still reported, and --quiet cancels any --verbose for the library log level. not me silencing the chatter 🍓
  • --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. customize the fit, literally 🧚
  • --timeout=<ms> — set the timeout for the command in milliseconds. infinite or -1 waits without a time limit (0xffffffff). patient queen behavior 💜
  • -v, --verbose — increase the level of detail in the output. may be specified multiple times to further increase verbosity. yes, you can stack it. go off 🔥

and okay, tea time ☕ these options can also be set as machine-wide defaults in nvme-cli.conf(5). but a command-line flag always overrides the file — CLI stays the main character, periodt 👑

✨ EXAMPLES ✨

  • have the program interpret the returned buffer and display the known fields in a human readable format:
# nvme huawei id-ctrl /dev/nvme0

look at that. one line. chef's kiss 😚👌

✨ NVME ✨

part of the nvme-user suite 💫

and that's the whole page, bestie — nothing skipped, nothing invented, every flag accounted for 🫶

🌸 cute little sign-off: this was NVMe documentation, dated 10/30/2026, from the NVMe Manual. go forth and identify those controllers, you absolute icon 💅✨
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