> What could be the best replication ? Are you using two sites to increase availability, durability, or both?
For availability your really better off using three sites and use CRUSH to place each of three replicas in a different datacenter. In this setup you can survive losing 1 of 3 datacenters. If you two sites is the only option and your goal is availability and durability then I would do 4 replicas, using osd_pool_default_min_size = 2. > How to tune the crushmap of this kind of setup ? > and last question : It's possible to have the reads from vms on DC1 to always > read datas on DC1 ? No yet! -- Kyle _______________________________________________ ceph-users mailing list [email protected] http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
