cacti barcode graph

[almotahedatech]

hi i am new to cacti i have installed cacti 1.1.16 to monitor 7k devices so what requirements of server i need as now i added 3800 host but some graphs showing a barcode also i Enabled On-demand RRD Updating so is anyone can help to solve this problem


Thanks
MAH

[cigamit]

First, show us your Boost Status
Console > Utilities > Boost Status


Most likely, your webserver itself doesn't have access to write to the RRDs, only the poller. They both will need write access to do on-demand updates.