[ceph-users] Re: Make backup to another server.

[Adam Prycki]

Hello,


https://docs.ceph.com/en/squid/dev/cephfs-mirroring/
https://docs.ceph.com/en/squid/rbd/rbd-mirroring/



Best regards
Adam Prycki

W dniu 26.05.2025 o 18:28, Nmz pisze:

ceph has RBD and CephFS mirroring mechanisms but I don't know if these would work for you in cold backup scenario. (also I don't know if proxmox supports these). Since you're using proxmox, probably the best way to backup RBD would be to use their proxmox backup server. You could also use some normal filesystem backup tool to backup non-proxmox data from cephfs.

Hello everyone,

     pool proxmox_metadata Rep SSD
     pool proxmox_data EC SSD

     rbd: ceph_rbd
         content images
         data-pool proxmox_data
         pool proxmox_metadata

     pool proxmox_data_1_ssd_other_hdd R 1 SSD 2 HDD

     rbd: ceph_rbd_1ssd_hdd
         content images
         pool proxmox_data_1_ssd_other_hdd

     pool cephfs_metadata Rep SSD
     pool cephfs_data Rep SSD
     pool web_data EC SSD
     pool db_data EC SSD
     pool data EC HDD

     name: cephfs, metadata pool: cephfs_metadata, data pools: [cephfs_data 
web_data db_data data ]

home            | web_data    | nmz
....
db              | db_data     | sql
persoanl        | data        | Video
....

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I came to Ceph from ZFS world. In ZFS I can use snapshots as backup way. Keep it localy or send to another server/pool. Is it possible to do it the same using Ceph? Right now in my cluster I use RBD and CephFS. RBD data structure: Ceph pools storage.cfg Ceph pools storage.cfg CephFS data structure: Ceph pools # ceph fs ls subvolumegroup  | data_pool   | subvolume As you can see subvolumes use specific ceph pools. For every subvolume I use snapshots. Ceph backup server will work in cold mode, single node, not 24/7. What is the best way to send data to backup server ? I want to use incremental backup sync. Can I achieve it ? Thanks _______________________________________________

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