The other day i had about 3400 users running on my SA-6000 and the CPU stayed at 100% through out the day. I had about 3-400 Network connect users 100 of them were using 443 and the rest using 4500. The rest were web users using OWA and sharepoint etc. Now i am running 6.2R2-1 that has a bug for high CPU utilization for NC users that fail over to SSL but what is normal Max users that you have run on your single SA6000? I am running a SA-6000 SP pair in active / passive.
We only have maxed out at around 1200 users on a single SA6000 only doing SSLVPN (web/file rewriting) and no NC.
3400 is less than the advertised limit on the SA6000. We have seen in many cases where the admin console shows 100% CPU but the performance of the box is just fine. JTAC has told us the CPU % was being displayed incorrectly due to some bug. Apparently there was a bug in the web rewriter causing this. So perhaps the 100% number is not accurate unless you are seeing significant performance impact.