item parameter

[arix]

I want to use the key

vfs.dev.read[hda,sectors]

to get the number of read bytes on disk hda in a linux.
What value I should use in the field of "Units" and "Use multiplier"?

[tronite]

getting the number of bytes from the hda by using keys

this link will best serve you better than much I could say: http://www.zabbix.com/manual/v1.1/config_triggers.php