It is possible to run a ceph cluster over a WAN if you have reliable enough WAN with sites close enough for low-ish latency. The OSiRIS project is architected that way with Ceph services spread evenly across three university sites in Michigan. There's more information and contact on their website: http://www.osris.org We had a variety of interesting WAN outages which Ceph has always handled well in terms of not losing data or our cluster definitions. Outages were at times further complicated by inconsistent pathing for cluster and backend networks such that only one or the other might be up to some sites. In all that, with 3 mons situated 1 per site, we never encountered any kind of split brain situations. Though I'm no longer involved the project is still ongoing and I'm sure if you want to reach out they (or I personally) would be happy to answer any questions. thanks, Ben On Tue, May 19, 2020 at 1:03 PM Nathan Fish <lordcirth@xxxxxxxxx> wrote: > > It is my understanding that it refers to running a single, normal ceph > cluster with it's component hosts connected over WAN. This would > require OSDs to connect to other OSDs and mons over WAN for nearly > every operation, and is not likely to perform acceptably. > _______________________________________________ > 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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