topic Very high CPU usage on ZD1100 with 9.9 in ZoneDirector

Very high CPU usage on ZD1100 with 9.9

andres_arizpe — Tue, 12 Jan 2016 17:31:31 GMT

Hi,
I'm running 6 R600 APs with a ZD1100 and I'm surprised to see very high CPU usage (over 90% avg.) with about 150 devices connected. I had 9.9.0.0 fw and updated to 9.10 with similar results.

I'm used to seeing CPU usage below 50% avg. with 9.7 fw, even with over 500 devices connected.

Can someone else with a ZD1100 with a recent (above 9.8 fw) please comment on their CPU usage please?

Please don't comment about ZD1200, which obviously has much more processing power and would show much lower usage.

Thanks,
Andres
andres@fastweb.com.mx

Re: Very high CPU usage on ZD1100 with 9.9

michael_brado — Wed, 13 Jan 2016 01:04:13 GMT

You will see higher CPU utilization if your ZD is managing many Web Authentication sessions - WebAuth, Guest Access, HotSpot.
And avoid running Real Time Monitoring, which also consumes many ZD resources.

Re: Very high CPU usage on ZD1100 with 9.9

andres_arizpe — Thu, 14 Jan 2016 01:22:21 GMT

I'm only running Guest Access and 4 basic WPA2 WLANs.

It seems I installed a GR version of fw instead of a MR and for some reason they run high on CPU cycles. I've now upgraded to 9.10.1 MR and I do see lower usage, especially during non-peak hours.

Thanks you anyways for your help,
Andres