Is there a limit on # of users created in Active Directory ?

[Shawn]

Is there a real limit on # of users created in Active
Directory ? I have a customer who is claiming that Active
Directory supports a maximum of 3000 useres. Is it true ?

 

[Simon Geary]

No, not true at all. There is no pre-defined limit of user numbers.

 

[Paul Bergson {MCT, MCSE}]

I Believe it is in the millions of objects. 3000 is totally inaccurate.

 

[Joe Richards [MVP]]

I have more than that in my home play AD. At the office there are some 250k
users in the forest, biggest domain is about 100k users.

joe

 

[Sean Siler]

Compaq used to have a really good white paper on building a very large AD.
They scripted more than 100 million object into AD, and it was still
running. Granted, it was a huge bloated pig, but it was still running.
<grin>

Unfortunately, Compaq has since taken down the paper, but luckily I
downloaded a copy. I contacted the author a few months ago to see if he had
updated the test, but he had left Compaq and never updated it. It was
published in February of 2000, and ran on Windows 2000, of course.

I assume Windows 2003 will be nearly identical results.

-Sean Siler