Hello Ceph Users, We have a Mimic 13.2.10 cluster on Ubuntu 16.04.03 with 6 servers, 36 OSDs. Each OSD has a 2GB memory target via ceph.conf (30 spin disks with HDD type and 2 pools on them (2copy and 3copy pools), 6 SSDs in a flash pool (3copy)) Our intention is to upgrade the code level of CEPH only (Ubuntu remains the same on 16.04.03) and we have the choice of goto Nautilus or goto Octopus. **Does anyone have any warning based on upgrade attempts or advisement for Nautilus or Octopus? Our primary concern is simply code stability post upgrade. -- Thank you for your time, Edward H. Kalk IV Information Technology Dept. Server Specialist Datacenter Virtualization and Storage Systems Socket Telecom, LLC. 2703 Clark Lane Columbia, MO 65202 573-817-0000 or 800-socket3 X218