On 05/28/2014 07:01 PM, Travis Rhoden wrote: > Hi folks, > > Does anybody know if there are any issues running Ceph with multiple L2 > LAN segements? I'm picturing a large multi-rack/multi-row deployment > where you may give each rack (or row) it's own L2 segment, then connect > them all with L3/ECMP in a leaf-spine architecture. > For a PoC I have set up such a environment with IPv6. The cluster was spread out over 3 racks. Each rack had it's own /64 IPv6 subnet where the top-of-rack switch was also a L3 router. The /64 subnets all came from a larger /56 subnet so all clients only had 1 route. That worked just fine. The point is, just make sure there is a Layer 3 route from all nodes to each other. > I'm wondering how cluster_network (or public_network) in ceph.conf works > in this case. Does that directive just tell a daemon starting on a > particular node which network to bind to? Or is a CIDR that has to be > accurate for every OSD and MON in the entire cluster? > > Thanks, > > - Travis > > > _______________________________________________ > ceph-users mailing list > ceph-users at lists.ceph.com > http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com > -- Wido den Hollander 42on B.V. Phone: +31 (0)20 700 9902 Skype: contact42on
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