...

• Upgrade storage-nodes
  
  • Restart ceph-osd's on one node at a time.
• When all storage-nodes are upgraded you can run:
  • ceph osd require-osd-release quincy

Clients

• Upgrade radosgw's
  • Reboot the radsgw's afterwards.
• Upgrade compute-nodes
  • Reboot the compute-nodes afterwards to make sure all VM's use the new client.