The Zabbix 3.x (and 4.0) updated version of this template is available on github.
If you are looking for a 2.0 Zabbix template, a similar template is available on Zabbix Share. Plasae ignore mine and use the “community” one, posting questions on the forum.
I'm just keeping the information below for historical reasons.
I have created an improved version of the SNMP QNAP Template for Zabbix 2.0 available on-line. This new template is still based on SNMP, but has the following features:
It has been tested with TS-200, TS-212P, and TS-569/569L.
To install the template, first create a Value mapping named “QNAP Drive Status” with the following values:
4=Unknown 5=No Disk 6=Invalid 9=Read/Write Error 0=Ready
Then import the improved QNAP template and apply it to your NAS. That's all.