FYI -- that "entries_behind_master=175226727" bit is telling you that it has only mirrored about 80% of the recent changes from primary to non-primary. Was the filesystem already in place? Are their any partitions/LVM volumes in-use on the device? Did you map the volume read-only? On Tue, Nov 27, 2018 at 8:49 AM Vikas Rana <vikasrana3@xxxxxxxxx> wrote: > > Hi There, > > We are replicating a 100TB RBD image to DR site. Replication works fine. > > rbd --cluster cephdr mirror pool status nfs --verbose > > health: OK > > images: 1 total > > 1 replaying > > > > dir_research: > > global_id: 11e9cbb9-ce83-4e5e-a7fb-472af866ca2d > > state: up+replaying > > description: replaying, master_position=[object_number=591701, tag_tid=1, entry_tid=902879873], mirror_position=[object_number=446354, tag_tid=1, entry_tid=727653146], entries_behind_master=175226727 > > last_update: 2018-11-14 16:17:23 > > > > > We then, use nbd to map the RBD image at the DR site but when we try to mount it, we get > > > # mount /dev/nbd2 /mnt > > mount: block device /dev/nbd2 is write-protected, mounting read-only > > mount: /dev/nbd2: can't read superblock > > > > We are using 12.2.8. > > > Any help will be greatly appreciated. > > > Thanks, > > -Vikas > > _______________________________________________ > ceph-users mailing list > ceph-users@xxxxxxxxxxxxxx > http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com -- Jason _______________________________________________ ceph-users mailing list ceph-users@xxxxxxxxxxxxxx http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
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