Unable to see disk activity for Amazon ec2 instances

I have enabled C&U data collection for ec2 on my appliance.I’m not able to see any disk activity.However,I can see CPU and network activity.I’d appreciate any pointers.

Thanks.

We should be collecting it, so not sure what’s going on here. Do you have any errors in your evm.log or amazon.log? @dajohnso Have you seen anything like this?