Java Reference
In-Depth Information
• Database
o master-slave with automatic fail-over
o 32 GB RAM
o 24 (virtual) processors
Example 2: Web Application
Liferay Portal for 5000 registered users with 500 of them
accessing it concurrently would need an application server
with 4GB memory and a 3GHz quad-core Xeon processor;
for the database, a server below 4GB/1-quad 3GHz would
suffice.
Conclusion
Given the examples above, other information, for a
requirement of 200 concurrent users doing no
resource-intensive actions and 10h/day availability, One 4GB,
2-core 2.5GHz machine running both a single AS and the DB
would be able to satisfy the performance requirements.
IBM recommends typical deployments of IBM WebSphere
Application Server v7.0 require at least a high-cpu medium
instance to have access to enough physical memory and
computing power. That means 2 GB RAM and 2 (virtual)
cores each with the power of 2.5-3.0 GHz 2007 Opteron or
Xeon processor. This is minimum production configuration to
run WebSphere and can be taken is as the minimum
configuration for any standard Java EE web application.
