Dear All, some year ago, I installed and configured a Gluster volume using 3 servers. I also installed Nagios Community in order to monitor Gluster servers and services and everything works correctly. Recently, I added 3 new servers to the existing Gluster volume and I decided to use the same Nagios server to check all services. All services are ok except for "Volume Utilization" and "Cluster Utilization" ones. Once a day, I receive the following messages sequence. I'm using Nagios Core v.4.3.2. On the first 3 servers I installed NRPE client v.3.1.1 On the new 3 servers I installed NRPE client v.3.2.0 Is there something I can do in order to correct this issue? Thank you in advance, Mauro ----> Message 1: ***** Nagios ***** Notification Type: RECOVERY Service: Volume Utilization - tier2 Host: tier2-gluster Address: tier2-gluster State: OK Date/Time: Wed Oct 17 12:56:37 CEST 2018 Additional Info: OK: Utilization:38.04% ----> Message 2: ***** Nagios ***** Notification Type: RECOVERY Service: Cluster Utilization Host: tier2-gluster Address: tier2-gluster State: OK Date/Time: Wed Oct 17 12:59:33 CEST 2018 Additional Info: OK - used 38% of available 430080.0 GB ----> Message 3: ***** Nagios ***** Notification Type: PROBLEM Service: Volume Utilization - tier2 Host: tier2-gluster Address: tier2-gluster State: UNKNOWN Date/Time: Wed Oct 17 13:11:10 CEST 2018 Additional Info: NRPE: Unable to read output ----> Message 4: ***** Nagios ***** Notification Type: PROBLEM Service: Cluster Utilization Host: tier2-gluster Address: tier2-gluster State: UNKNOWN Date/Time: Wed Oct 17 13:13:33 CEST 2018 Additional Info: UNKNOWN - Volume utilization data could not be read _______________________________________________ Gluster-users mailing list Gluster-users@xxxxxxxxxxx https://lists.gluster.org/mailman/listinfo/gluster-users