Dear Cepher experts, We are operating some ceph clusters (both L and N versions) at PB scale, and now planning remote distaster recovery solutions. Among these clusters, most are rbd volumes for Openstack and K8s, and a few for S3 object storage, and very few cephfs clusters. For rbd volumes, we are planning to use rbd mirroring, and the data volume will reach several PBs. My questions are 1) Rbd mirroring with Peta bytes data is doable or not? are there any practical limits on the size of the total data? 2) Should i use parallel rbd mirroring daemons to speed up the sync process? Or a single daemon would be sufficient? 3) What could be the lagging time at the remote site? at most 1 minutes or 10 minutes? For S3 object store, we plan to use multisite replication, and thus 4) are there any practical limits on the size of the total data for S3 multisite replication? and for CephFS data, i have no idea. 5) what could be the best practice to CephFS disaster recovery scheme? thanks a lot in advance for suggestions, Samuel huxiaoyu@xxxxxxxxxxxx _______________________________________________ ceph-users mailing list -- ceph-users@xxxxxxx To unsubscribe send an email to ceph-users-leave@xxxxxxx
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