Michel; I am neither a Ceph evangelist, nor a Ceph expert, but here is my current understanding: Ceph clusters do not have in-built cross cluster synchronization. That said, there are several things which might meet your needs. 1) If you're just planning your Ceph deployment, then the latest release (Pacific) introduced the concept of a stretch cluster, essentially a cluster which is stretched across datacenters (i.e. a relatively low-bandwidth, high-latency link)[1]. 2) RADOSGW allows for uni-directional as well as bi-directional synchronization of the data that it handles.[2] 3) RBD provides mirroring functionality for the data it handles.[3] Thank you, Dominic L. Hilsbos, MBA Vice President - Information Technology Perform Air International Inc. DHilsbos@xxxxxxxxxxxxxx www.PerformAir.com [1] https://docs.ceph.com/en/latest/rados/operations/stretch-mode/ [2] https://docs.ceph.com/en/latest/radosgw/sync-modules/ [3] https://docs.ceph.com/en/latest/rbd/rbd-mirroring/ -----Original Message----- From: Michel Niyoyita [mailto:micou12@xxxxxxxxx] Sent: Tuesday, October 12, 2021 8:35 AM To: ceph-users Subject: Ceph cluster Sync Dear team I want to build two different cluster: one for primary site and the second for DR site. I would like to ask if these two cluster can communicate(synchronized) each other and data written to the PR site be synchronized to the DR site , if once we got trouble for the PR site the DR automatically takeover. Please help me for the solution or advise me how to proceed Best Regards _______________________________________________ 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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