Hello,
Ok it's better now, I did a restart then an uppgrade to our ZD, and this is the graph for the last day.
There is still some spikes and I am wondering if it's really normal... is it ?
However I don't have any spike at 100% like before... and the memory is much lower. (the restart helped, for sure)
Well let me know please guys if you think about something wrong in our configuration, and thanks a lot for your previous reply.
Have a good day.