Telegraf->InfluxDB->Grafana issue displaying logs

Hey, I’m sending normal system logs gathered by telegraf ( disk usage in this example )
I see in the influxdb that it gathered logs of /var /opt /home etc. but in grafana with this datasource (influxdb and database=telegraf) it only sees /etc/hostname /etc/hosts /etc/resolv.conf - why is that?
When I select ‘table’ instead of ‘graph’ in grafana and do a ‘select * from disk’ it shows all /var /opt etc. but when I do it in table - with same datasource it doesn’t see it; anyone met similar problem ?