This is the documentation page for an unsupported version of Zabbix.
Is this not what you were looking for? Switch to the current version or choose one from the drop-down menu.

20 Upgrade notes for 5.4.10

Item changes

Native support for the items system.hw.chassis, system.hw.devices, vfs.dir.count and vfs.dir.size has been added to Zabbix agent 2.