Hi Friends, We have 2 Ceph clusters on campus and we setup the second cluster as the DR solution. The images on the DR side are always behind the master. Ceph Version : 12.2.11 VMWARE_LUN0: global_id: 23460954-6986-4961-9579-0f2a1e58e2b2 state: up+replaying description: replaying, master_position=[object_number=2632711, tag_tid=24, entry_tid=1967382595], mirror_position=[object_number=1452837, tag_tid=24, entry_tid=456440697], entries_behind_master=1510941898 last_update: 2020-11-30 14:13:38 VMWARE_LUN1: global_id: cb579579-13b0-4522-b65f-c64ec44cbfaf state: up+replaying description: replaying, master_position=[object_number=1883943, tag_tid=28, entry_tid=1028822927], mirror_position=[object_number=1359161, tag_tid=28, entry_tid=358296085], entries_behind_master=670526842 last_update: 2020-11-30 14:13:33 Any suggestion on tuning or any parameters we can set on RBD-mirror to speed up the replication. Both cluster have very little activity. Appreciate your help. Thanks, -Vikas