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
  
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