Hi Jeff, so the minimal config would be like this: - CephFS - two NFS-Ganesha nodes (node a: 10.20.56.240, node b:10.20.56.241) with keepalived installed and a VIP of 10.20.56.2 - One client able to mount NFS shares in that 10.20.56.0/24 network Test 1: Mount a NFS share: mount -o ro,relatime,vers=3,rsize=65536,wsize=65536,namlen=255,acregmin=600,acregmax=600,acdirmin=600,acdirmax=600,hard,nocto,nolock,noacl,proto=tcp,port=2049,timeo=100,retrans=360,sec=sys 10.20.56.2:/vol/test /tmp/nfs-test1 Failover from a to b by rebooting. That should work. Test 2: Create a snapshot on the Ceph node: cd /vol/test ; mkdir .snap/12345 Mount the snapshot: mount -o ro,relatime,vers=3,rsize=65536,wsize=65536,namlen=255,acregmin=600,acregmax=600,acdirmin=600,acdirmax=600,hard,nocto,nolock,noacl,proto=tcp,port=2049,timeo=100,retrans=360,sec=sys 10.20.56.2:/vol/test/.snap/12345 /tmp/nfs-test2 ls /tmp/nfs-test2 ...should work Failover from a to b by rebooting ls /tmp/nfs-test2 should give the ESTALE. All the best Rainer