Ceph is a non-starter for me because you cannot have an existing filesystem on the disk. Previously I used GlusterFS on top of ZFS and made heavy use of gluster's async geo-replication feature to keep two storage arrays in sync that were far away over a slow link. This was done after getting fed up with rsync being so slow and always thrashing the disks having to scan many TBs every day.
While there is a geo-replication feature for Ceph, I cannot keep using ZFS at the same time, and gluster is no longer developed, so I'm currently looking for an alternative that would work for my use case if anyone knows of a solution.
While there is a geo-replication feature for Ceph, I cannot keep using ZFS at the same time, and gluster is no longer developed, so I'm currently looking for an alternative that would work for my use case if anyone knows of a solution.