Hello gurus: My name is will . I have just study ceph and have a lot of interest in it . We are using ceph 0.94.10. And I am tring to tune the performance of ceph to satisfy our requirements. We are using it as object store now. Even though I have tried some different configuration. But I still have some questions about it . I wonder how much impact the performance of the omap kv database have on cluster ? Can I have some way to measure it ? I know rocksdb performs better than leveldb on fast device like ssd . So I wonder If I put bucket index on ssd, and change the omap kvdb to rocksdb . Will the performance be improved ? Has anyone tried this ? Or I still use filestore . But I use EnhanceIO + ssd as filesystem cache tier. And change the omap kv to rocksdb of all osds, will the cluster performance be improved ? Has anyone tried this ? _______________________________________________ ceph-users mailing list ceph-users@xxxxxxxxxxxxxx http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com