LCTL-SNAPSHOT_UMOUNT(8)

💅 NAME 💅

lctl-snapshot_umount — bestie, this is the girl that unmounts a Lustre snapshot for you. That's the whole job. She shows up, she does the thing, she leaves. 🎀

This is section 8 of the Lustre Configuration Utilities manual, so it's a sysadmin-flavored baddie, not some lil userland cutie.

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✨ SYNOPSIS ✨

lctl snapshot_umount {-F|--fsname FSNAME} [-h|--help] {-n|--name SSNAME}
                     [-r|--rsh REMOTE_SHELL]

okay so the way that you run her is you give her a filesystem name, you give her a snapshot name, and she handles the rest. the -h and the -r are the little optional accessories. 🦋

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🌸 DESCRIPTION 🌸

She unmounts the specified snapshot on the servers. That's it. That's the tweet. You point her at a snapshot, she takes it down. No cap. 💖

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👑 OPTIONS 👑

• -F, --fsname fsname — this is where you tell her the filesystem name, bestie. she literally cannot proceed without knowing which filesystem we're talking about. 🫶
• -h, --help — for help information. she'll explain herself if you ask nicely. 🤗
• -n, --name ssname — the snapshot (to be unmounted) name. and listen, it must be specified. not optional, not "she'll figure it out", must. be. specified. periodt. 💅
• -r, --rsh remote_shell — here you specify a shell to communicate with remote targets. the default value is ssh. 🐚

⚠️ real talk: it is the system admin's duty to guarantee that the specified remote_shell works well among targets without password authentication. that's on you, not on her. she's not out here typing your passwords, she's out here unmounting snapshots. 💀

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🌈 AVAILABILITY 🌈

lctl-snapshot-umount is part of the lustre(7) filesystem package since release 2.10.0. she's been in the group chat since then. iconic behavior, honestly. ⭐

(Tiny note: the manpage title spells her lctl-snapshot_umount and the synopsis spells her lctl snapshot_umount — both are correct, she answers to either. iykyk. 🙈)

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🧚 SEE ALSO 🧚

her sisters and cousins, the whole glam fam:

• lctl(8)
• lctl-barrier(8)
• lctl-lcfg(8)
• lctl-snapshot-create(8)
• lctl-snapshot-destroy(8)
• lctl-snapshot-list(8)
• lctl-snapshot-modify(8)
• lctl-snapshot-mount(8)

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and that's the whole page, bestie, you ate that 🍓💜

Lustre · 2024-08-14 · shoutout to the LCTL-SNAPSHOT_UMOUNT(8) manual page for the lore, mwah 💋