There should be five people for monitoring purposes and one person for SIEM management. Scalability-wise, I rate the solution a seven out of ten. At present, no one is using it in my company.

It is not scalable at all. This is an area that could have been improved, but it is out of date and no longer used. RSA enVision does not share the system anymore.

We have only one user in our organization. I am the only one who is using this solution. I am the system administrator.

We currently have three users using this solution. They're all architects. 

We have not faced any scalability issues.

Scalability is not an issue.