Hello. I'm one of the oldest Nautilus 14.2.16 user in the community. It served with honor and great stability for more than 5 years. I want to thank you for its awesome developers. But the day has come and I decided to select a new stable and trusted release/version for the next 3-4 years. I will be so grateful if you share your advice and benchmark or test results to help me select the right Ceph release/version for my 7/24 running production clusters. I have 2 different clusters for specific usages: RBD Cluster: (Win10 VM use cases) - 30 nodes (15node <2x100Gbe 100m> 15node). - I have 2000++ rbd volumes of 50-100GB each. - I use daily snapshot with monthly cycle - I use KVM and libvirt drivers - SSD Pool-RBD: Replication 3 (%95) - SSD Pool-Cephfs: Replication 3 (%5) = For internal cluster usages -------------------------------------- RGW+CephFS Cluster: (S3 Muti-side) - 20 nodes (10node <1Gbit 400km> 10node). - HDD Pool-RGW-Data: 8+2 RGW-S3 use case (%70) - SSD Pool-RGW-MetaData: Replication 3 (%5) - SSD Pool-Cephfs: Replication 3 (%25) -------------------------------------- Let's check our options and what I'm thinking about them. 1. Quincy 17.2.9: is EOL but I never had any issue with it on RBD use in my test clusters. I have a trust feeling for RBD and it is a stable completed release. 2. Reef 18.2.7: Active development for one last month but I never tested it. I have trust issues but also I want to use the latest stable release for better RGW features and stability. 3. Squid 19.2.2: I never use the latest development version for my production but if there are important RGW, S3 or Multiside improvements I should not ignore then I might consider it. . Best regards.