tail -f /var/log/zabbix/zabbix_server.log | grep -i "mssql\|odbc\|failed\|no data"
Performance counters are fragile (localization, missing objects). For critical metrics, use db.odbc.select with custom T-SQL. zabbix mssql failed to fetch info data -or no data for 30m-
Note: If your scripts are downloaded from the internet, you may need to unblock them using Unblock-File . tail -f /var/log/zabbix/zabbix_server