I modified for my purposes this little tool:
https://github.com/teralytics/ceph-backup to do incremental backup for
RBD volumes.
In addition I wrote also a little python tool to flatten rbd incremental
snapshot downloads over the corresponding full rbd image (My backup
appliance is mounted as a filesystem).
With this strategy I do a single full rbd image download and
subsequently I need only to do incremental snapshot downloads; only a
predefined bunch of snapshots are stored along the full image by
flattening the oldest one over the full-image, then the corresponding
snapshot is removed (daily backup).
As we use ceph for openstack volumes, we did also a very little change
into cinder code, and all of the backup works are completely invisible
to people, just admin knows that there are the backup-snapshots.
Probably rough, but works: If anyone is interested in, just ask.
My 5cents...
On 08/13/2025 06:36 PM, Anthony Fecarotta wrote:
Hello,
I'm curious how the community handles backup and disaster recovery planning with Ceph in production environments. Does running Ceph fundamentally change your backup strategy compared to traditional storage solutions?
Specifically, I'm interested in:
- Are you backing up at the RBD level, or relying on application-level backups?
- How do you handle cross-site replication for disaster recovery?
- Any tools or practices you'd recommend for automated backup scheduling?
Regards,
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Anthony Fecarotta
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