No. of Shibboleth servers required for 6, 00, 000 users to authenticate.

[Nate Klingenstein]

Dematri,

> We are using SSO toolkit for authentication of users, thus can’t comment on the no. of logins per second when it comes to Shib IDP.

I'm not sure why this would make it impossible to comment on the number of logins per second.

> Is there a tool that can help to provide a dummy calculation based on no. of users to be 6,00,000?

It completely depends on your population.  Numbers I see from schools are typically on the order of 30,000 active faculty/students/staff and 50 logins per second during peak hours on peak days -- 1 per 600 users -- but it varies wildly, both throughout the day and between organizations.  Whether you could even use this as a rough guess depends on how closely your usage patterns match those of these organizations.

Thanks,
Nate.