Guys hi. I have a Jewel Cluster composed by two storage servers which are configured on the crush map as different buckets to store data.
I've to configure two new pools on this cluster with the certainty that i'll have to add more servers in a short term. Taking into account that the recommended replication size for every pool is 3, i'm thinking in two possible scenarios. 1) Set the replica size in 2 now, and in the future change the replica size to 3 on a running pool. Is that possible? Can i have serious issues with the rebalance of the pgs, changing the pool size on the fly ? 2) Set the replica size to 3, and change the ruleset to replicate by OSD instead of HOST now, and in the future change this rule in the ruleset to replicate again by host in a running pool. Is that possible? Can i have serious issues with the rebalance of the pgs, changing the ruleset in a running pool ? Which do you think is the best option ? Thanks in advanced. Maximiliano Venesio Chief Cloud Architect | NUBELIU E-mail: massimo@nubeliu.comCell: +54 9 11 3770 1853 _ www.nubeliu.com _______________________________________________ ceph-users mailing list ceph-users@lists.ceph.com http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
