CEPHFS-MIRROR(8)

✨ NAME ✨

cephfs-mirror — the Ceph daemon that mirrors your CephFS snapshots 💅 (yes bestie, manual page cephfs-mirror(8), she's from the Ceph family 🫶)

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🦋 SYNOPSIS 🦋

cephfs-mirror

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🌸 DESCRIPTION 🌸

okay so cephfs-mirror is a daemon, right, and her whole job is asynchronous mirroring of Ceph Filesystem snapshots among Ceph clusters. Like, snapshots go over there to another cluster, no cap ✨ she's not sitting there waiting for it either — asynchronous, she said what she said.

The way she reaches those remote clusters is via libcephfs, and she relies on the default search paths to find ceph.conf files. iykyk, that means:

/etc/ceph/$cluster.conf

where $cluster is the human-friendly name of the cluster. So cute, so simple, she just goes looking. 💖

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🎀 OPTIONS 🎀

• --mon-host monaddress[:port] — connect to the exact monitor you named instead of doing the whole "look through ceph.conf" main-character search 🌈
• --keyring=<path-to-keyring> — hand over the path to the keyring. highkey clutch when it's not chilling in the standard locations 👑
• --log-file=<logfile> — the file where the debug output goes. like, the whole journal of her little thoughts 🍓
• --debug-cephfs-mirror=<log-level>/<memory-level> — set the cephfs-mirror debug level, both halves of it, log level and memory level 🧚
• -c ceph.conf, --conf=ceph.conf — use this ceph.conf configuration file instead of the default /etc/ceph/ceph.conf when figuring out monitor addresses during startup 🦋
• -i ID, --id ID — set the ID portion of the name for cephfs-mirror ✨
• -n TYPE.ID, --name TYPE.ID — set the rados user name (eg. client.mirror) 💜
• --cluster NAME — set the cluster name (default: ceph) 💅
• -d — run in the foreground, log to stderr 📣
• -f — run in the foreground, log to the usual location 🌸

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⭐ AVAILABILITY ⭐

cephfs-mirror is part of Ceph — a massively scalable, open-source, distributed storage system. Obsessed, fr fr. If you want more info, the Ceph documentation lives at <https://docs.ceph.com> 🌈

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🔥 SEE ALSO 🔥

• ceph(8)

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💖 Copyright 💖

2010-2014, Inktank Storage, Inc. and contributors. Licensed under Creative Commons Attribution Share Alike 3.0 (CC-BY-SA-3.0). Respect the license, bestie, it's giving legally binding 🫶

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k that's the whole page, you ate it 💅 version dev, dated Oct 06, 2026 — CEPHFS-MIRROR(8), periodt. 🎀✨