Multiple (possibly load-balanced) PHP FastCGI Upstream?

[Arie Karhendana]

Hello all,

I'm a happy user of nginx + PHP FastCGI. Currently, nginx and PHP
FastCGI processes run on different hosts.

We're reaching a point where PHP backend become the main bottleneck.
Can nginx handle the scenario of multiple fastcgi backends, so nginx
will load balance fastcgi requests to multiple upstreams?

Thank you,
-- 
Arie Karhendana