Thanks all, I'm going to investigate rbd-mirror further. K. On 14-05-2020 09:30, Anthony D'Atri wrote: > It’s entirely possible — and documented — to mirror individual images. Your proposal to use snapshots is reinventing the wheel, but with less efficiency. > > https://docs.ceph.com/docs/nautilus/rbd/rbd-mirroring/#image-configuration > > > ISTR that in Octopus the need for RBD journals is gone, but am not positive. > > For done 1-2 volumes at a time you’ll want to increase two tunables to avoid protracted syncing. Without these I’ve experienced a volume of just a few TB take multiple hours to converge, and some that got increasingly behind over time. > > > rbd_mirror_journal_max_fetch_bytes: > section: "client" > value: "33554432" > > rbd_journal_max_payload_bytes: > section: "client" > value: "8388608" _______________________________________________ ceph-users mailing list -- ceph-users@xxxxxxx To unsubscribe send an email to ceph-users-leave@xxxxxxx
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