I have a Fortigate 60 firewall. I'd like to know how I can tell when I'd need to upgrade the firewall and when it is sufficient for my use.
1. Are CPU utilization and memory utilization the only things I should look at?
2. What are the limits for the CPU and memory utilization till which I am safe?
3. My CPU utilization is hardly 2-3 percent but my memory utilization is about 53% (in my current system) without the antivirus being on. Is that too high?
If someone can answer these questions it'd be of great help.