Rajesh,

 

An install with 3000 users is fairly average in size.  Cryen will not add much overhead as it uses pattern matching and sends a very small pattern to the Cryen servers, where the comparison is done.  The hardware you have is more than enough for 3000 users.  You didn't mention anything about disk storage.  Be sure your using a RAID 10 configuration for your data drives and it would be best to have your OS and Spool on separate drives to avoid fragmentation and provide security and stability for the OS itself.

 

Tim Uzzanti