Zabbix4.2 how to moniter a directory size

Question

I try to add an item like vfs.dir.size["/root/test",,,,,], but it doesn't work.

ex. Error

Answer 1

1. firstly - your item only needs to be short as so: vfs.dir.size["/root/test"]
2. secondly - please verify that user zabbix has access to /root/test directory as I assume it does not.

Zabbix can only monitor what user zabbix has access to on the system.