For some reason I’d thought replication between clusters was an “official” method of backing up. > On May 29, 2020, at 4:31 PM, <DHilsbos@xxxxxxxxxxxxxx> <DHilsbos@xxxxxxxxxxxxxx> wrote: > > Ludek; > > As a cluster system, Ceph isn't really intended to be backed up. It's designed to take quite a beating, and preserve your data. > > From a broader disaster recovery perspective, here's how I architected my clusters: > Our primary cluster is laid out in such a way that an entire rack can fail without read / write being impacted, much less data integrity. On top of that, our RadosGW was a multi-site setup which automatically sends a copy of every object to a second cluster at a different location. > > Thus my disaster recovery looks like this: > 1 rack or less: no user impact, rebuild rack > 2 racks: users are unable to add objects, but existing data is safe, rebuild cluster (or as below) > Whole site: switch second site to master and continue > > No backup or recovery necessary. > > You might look the multi-site documentation: https://docs.ceph.com/docs/master/radosgw/multisite/ > > I had a long conversation with our owner on this same topic, and how the organization would have to move from a "Backup & Recover" mindset to a "Disaster Recovery" mindset. It worked well for us, as we were looking to move more towards Risk Analysis based approaches anyway. > > Thank you, > > Dominic L. Hilsbos, MBA > Director – Information Technology > Perform Air International, Inc. > DHilsbos@xxxxxxxxxxxxxx > www.PerformAir.com > > > > -----Original Message----- > From: Ludek Navratil [mailto:ludek.navratil@xxxxxxxxxxx] > Sent: Wednesday, February 5, 2020 6:57 AM > To: ceph-users@xxxxxxx > Subject: OSD backups and recovery > > HI all, > what is the best approach for OSD backups and recovery? We use only Radosgw with S3 API and I need to backup the content of S3 buckets. Currently I sync s3 buckets to local filesystem and backup the content using Amanda. > I believe that there must a better way to do this but I couldn't find it in docs. > > I know that one option is to setup an archive zone, but it requires an additional ceph cluster that needs to be maintained and looked after. I would rather avoid that. > > How can I backup an entire Ceph cluster? Or individual OSDs in the way that will allow me to recover the data correctly? > > Many thanks,Ludek > > _______________________________________________ > ceph-users mailing list -- ceph-users@xxxxxxx To unsubscribe send an email to ceph-users-leave@xxxxxxx > _______________________________________________ > ceph-users mailing list -- ceph-users@xxxxxxx > To unsubscribe send an email to ceph-users-leave@xxxxxxx _______________________________________________ ceph-users mailing list -- ceph-users@xxxxxxx To unsubscribe send an email to ceph-users-leave@xxxxxxx
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