LBLK-WRITE-ZEROS(1)

📦 version 0.7.5, in alpine 3.24, epel 9, fedora 43, fedora 44

💅 LBLK-WRITE-ZEROS(1) — the xNVMe glow-up

okay bestie, sit down, hydrate, because today we're talking about lblk-write-zeros from the xNVMe manual, section 1. it's giving "small utility, huge main character energy." ✨

🌸 NAME 🌸

lblk-write-zeros — Set a range of logical blocks to zero 🫧

like literally. you point it at some blocks and it zeroes them. no notes. 💖

✨ SYNOPSIS ✨

lblk write-zeros <uri> [<args>]

that's the whole vibe. one subcommand, a <uri>, and whatever <args> you feel like sprinkling on top. 🎀

🦋 DESCRIPTION 🦋

Set a range of logical blocks to zero. 🌈

that's it, that's the plot. you give it a device and a range, and it writes zeros over those logical blocks. lowkey the cleanest thing on this whole filesystem. 💅

👑 REQUIRED 👑

these are not optional, bestie. the command will simply not be slaying without them. 🫶

  • <uri> — Device URI. examples so you know the flavour: '/dev/nvme0n1', '0000:01:00.1', '10.9.8.1.8888', '\.PhysicalDrive1' 🌟
  • --slba 0xNUM — Start Logical Block Address. where the zeroing begins, fr fr.
  • --nlb NUM — Number of LBAs.
⚠️ heads up bestie, --nlb is a zero-based value. do not come for me when your range is off by one, i warned you. 😭

🧚 OPTIONAL 🧚

the extras. the accessories to the outfit. none of them are mandatory but they sure do eat. 🍓

  • [ --nsid 0xNUM ] — Namespace Identifier for Command Construction 👑
  • [ --data-input FILE ] — Path to data input-file 📁
  • [ --meta-input FILE ] — Path to meta input-file 📁
  • [ --subnqn STRING ] — Subsystem NQN of the NVMe over Fabrics endpoint, e.g. 'nqn.2022-06.io.xnvme:ctrlnode1' 🌐
  • [ --hostnqn STRING ] — The host NQN to use when connecting to NVMe over Fabrics controllers 🌐
  • [ --be STRING ] — xNVMe backend, e.g. 'linux', 'spdk', 'fbsd', 'macos', 'posix', 'windows' 💻
  • [ --dev-nsid 0xNUM ] — Namespace Identifier for Device Handle 👑
  • [ --admin STRING ] — xNVMe admin. command-interface, e.g. 'nvme', 'block' 🛠️
  • [ --mem STRING ] — xNVMe buffer/memory manager 🧠
  • [ --direct NUM ] — Bypass layers 🚀
  • [ --sync STRING ] — xNVMe sync. command-interface, e.g. 'nvme', 'block' 🔄
  • [ --help ] — Show usage / help 🙋♀️ (the classic, the icon, the legend)

🔥 SEE ALSO 🔥

Full documentation at: https://xnvme.io/ — go read it, it's giving very thorough. 💜

💖 AUTHOR 💖

Written by Simon A. F. Lund <simon.lund@samsung.com> on behalf of Samsung 🫡

okay that's the whole page, you ate that. and for the sign-off: this is the xNVMe manual, dated 09 September 2024, and honestly? iconic of it. 💅✨🌸 periodt.

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