We have an EQ group with PS6210s, and we've been seeing some queue depth spikes up to 80,000 at about 4:30am or so. The QD will climb for about 30-40 minutes and then drop like a rock to a normal average (less than 5). We're pretty sure it's a web system that is doing some data transfers at that time. We aren't seeing any adverse affects from this so far, so I'm wondering -

1 - Should I worry?

2 - Is the sudden dropoff normal? I would have expected a more gradual decline as the queue clears out.

Thanks.