Dear all, we have a Ceph cluster that has slowly evolved over several years and Ceph versions (started with 18 OSDs and 54 TB in 2013, now about 200 OSDs and 1.5 PB, still the same cluster, with data continuity). So there are some "early sins" in the cluster configuration, left over from the early days. One of these sins is the number of PGs in our CephFS "data" pool, which is 7200 and therefore not (as recommended) a power of two. Pretty much all of our data is in the "data" pool, the only other pools are "rbd" and "metadata", both contain little data (and they have way too many PGs already, another early sin). Is it possible - and safe - to change the number of "data" pool PGs from 7200 to 8192 or 16384? As we recently added more OSDs, I guess it would be time to increase the number of PGs anyhow. Or would we have to go to 14400 instead of 16384? Thanks for any advice, Oliver _______________________________________________ ceph-users mailing list ceph-users@xxxxxxxxxxxxxx http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
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