I had some troubles in my zabbix, it was installed into centos 7 machine hosted in a data center, since 1 year ago, the zabbix server monitor 3 types of virtual machines (glassfish server, database, apache server) the information displayed by zabbix is : Number of hosts (enabled/disabled/templates) 469 325 / 0 / 144Number of items (enabled/disabled/not supported) 38283 28553 / 5671 / 4059Number of triggers (enabled/disabled [problem/ok]) 19150 18502 / 648 [466 / 18036]Number of users (online) 3 1Required server performance, new values per second 362.34 ; my issue is that the virtual machine storage is saturated every time , my Data storage period is 365d