Object storage multi-site is very specific to using object storage. It uses the RGW API's to sync s3 uploads between each site. For CephFS you might be able to do a sync of the rados pools, but I don't think that's actually a thing yet. RBD mirror is also a layer on top of things to sync between sites. Basically I think you need to do something on top of the Filesystem as opposed to within Ceph to sync it between sites. On Wed, May 16, 2018 at 9:51 AM Up Safe <upands...@gmail.com> wrote:
> But this is not the question here. > The question is whether I can configure multi site for CephFS. > Will I be able to do so by following the guide to set up the multi site > for object storage? > > Thanks > > On Wed, May 16, 2018, 16:45 John Hearns <hear...@googlemail.com> wrote: > >> The answer given at the seminar yesterday was that a practical limit was >> around 60km. >> I don't think 100km is that much longer. I defer to the experts here. >> >> >> >> >> >> >> On 16 May 2018 at 15:24, Up Safe <upands...@gmail.com> wrote: >> >>> Hi, >>> >>> About a 100 km. >>> I have a 2-4ms latency between them. >>> >>> Leon >>> >>> On Wed, May 16, 2018, 16:13 John Hearns <hear...@googlemail.com> wrote: >>> >>>> Leon, >>>> I was at a Lenovo/SuSE seminar yesterday and asked a similar question >>>> regarding separated sites. >>>> How far apart are these two geographical locations? It does matter. >>>> >>>> On 16 May 2018 at 15:07, Up Safe <upands...@gmail.com> wrote: >>>> >>>>> Hi, >>>>> >>>>> I'm trying to build a multi site setup. >>>>> But the only guides I've found on the net were about building it with >>>>> object storage or rbd. >>>>> What I need is cephfs. >>>>> >>>>> I.e. I need to have 2 synced file storages at 2 geographical locations. >>>>> Is this possible? >>>>> >>>>> Also, if I understand correctly - cephfs is just a component on top of >>>>> the object storage. >>>>> Following this logic - it should be possible, right? >>>>> >>>>> Or am I totally off here? >>>>> >>>>> Thanks, >>>>> Leon >>>>> >>>>> _______________________________________________ >>>>> ceph-users mailing list >>>>> ceph-users@lists.ceph.com >>>>> http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com >>>>> >>>>> >>>> _______________________________________________ >>>> ceph-users mailing list >>>> ceph-users@lists.ceph.com >>>> http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com >>>> >>> >> _______________________________________________ >> ceph-users mailing list >> ceph-users@lists.ceph.com >> http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com >> > _______________________________________________ > ceph-users mailing list > ceph-users@lists.ceph.com > http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com >
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