I'm trying to figure out whether some of our web servers are at capacity or whether it's Google Analytics that's reached its maximum number of requests.

For Monday, Tuesday and Wedneday this week, my graph looks like an almost flat horizontal line, peaking at around 3,200,000 pageviews per day.

Does anyone have any evidence that Google Analytics can handle more requests than that?

(BTW, we have an active Google AdWords account, so this number of pageviews should be no problem...)

Do you have some sort of systems graph for your server, showing CPU, disk I/O, etc. for that time?

You saw this thread already I can see...
http://blogoscoped.com/forum/37885.html

I've not got any for that period but I could set one up. I just thought it looked a bit odd since it was such a flat line!

BTW, Tuesday's missing data discussed in that other thread seems to have been recovered now.