Supported platforms 

Sun Blade^TM or comparable workstation or server

Operating system 

Solaris^TM 9 or Solaris 10 on SPARC®

Solaris 9 or Solaris 10 on x86 

Red Hat Enterprise Linux 4.0 on x86 

RAM 

2.0 Gbytes for regular deployment on Sun Java System Application Server. 

Disk space 

1 Gbyte for Portal Server and associated applications. 

Swap space 

Twice the amount of physical memory. For example, if your machine has 2.0 Gbytes RAM, the swap space should be 4.0 Gbytes swap space. 

For Application Server 9.1, memory and disk space should be a minimum of 256 MB and 250 MB respectively.