Hi, I'm currently reading the documentation about stretched cluster, I would like to known if it's needed or not with this kind of 3 dc setup: 3km (0.2ms) DC1--------------DC2 30km(3ms) | | 30km (2-3ms) |--------DC3------ DC1 && DC2 are near each other, small latency. (0.2ms) DC3 is at 30km with bigger latency. (2ms) separated links between dc with different physical path 1 monitor on each dc osd on DC1/DC2, with size=4 Cluster is full nvme or ssd, lowest latency is required for osd replication. Now, I really don't known if latency monitor at DC3 could have an impact on osd read/write latency is this monitor elected ? vs stretched cluster with osd only use local dc monitors ? What is the advantage of stretch cluster here ? (with good redudant links between sites) _______________________________________________ ceph-users mailing list -- ceph-users@xxxxxxx To unsubscribe send an email to ceph-users-leave@xxxxxxx