---
name: "cephfs-mirror"
section: "8"
platform: "linux"
package: "cephfs-mirror"
version: "18.2.7+ds-1+deb13u1"
release: "Debian 13 (Trixie)"
platforms: ["linux"]
url: "https://new.carta.tech/cephfs-mirror"
---

# cephfs-mirror(8)

Ceph daemon for mirroring CephFS snapshots

## NAME

cephfs-mirror - Ceph daemon for mirroring CephFS snapshots

## SYNOPSIS

```
cephfs-mirror
```

## DESCRIPTION

**cephfs-mirror** is a daemon for asynchronous mirroring of Ceph Filesystem snapshots among Ceph clusters.

It connects to remote clusters via libcephfs, relying on default search paths to find ceph.conf files, i.e. **/etc/ceph/$cluster.conf** where **$cluster** is the human-friendly name of the cluster.

## OPTIONS

- **--mon-host monaddress\[:port\]**

  Connect to specified monitor (instead of looking through **ceph.conf**).

- **--keyring=\<path-to-keyring\>**

  Provide path to keyring; useful when it's absent in standard locations.

- **--log-file=\<logfile\>**

  file to log debug output

- **--debug-cephfs-mirror=\<log-level\>/\<memory-level\>**

  set cephfs-mirror debug level

- **-c ceph.conf, --conf=ceph.conf**

  Use **ceph.conf** configuration file instead of the default **/etc/ceph/ceph.conf** to determine monitor addresses during startup.

- **-i ID, --id ID**

  Set the ID portion of 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 foreground, log to stderr

- **-f**

  Run in foreground, log to usual location

## AVAILABILITY

**cephfs-mirror** is part of Ceph, a massively scalable, open-source, distributed storage system. Please refer to the Ceph documentation at *https://docs.ceph.com* for more information.

## SEE ALSO

[*ceph*(8)](/ceph/8.md)

## COPYRIGHT

2010-2014, Inktank Storage, Inc. and contributors. Licensed under Creative Commons Attribution Share Alike 3.0 (CC-BY-SA-3.0)