Hardware requirements to setup high available SOA system on production env

Hi All,
Can anyone tell me the recommended hardware requirements to setup a highly available SOA system on production machine?
Thanks
Jahangir

We have a 2 managed servers setup in 2 different VMs (SuSe Linux )
The minimum recommended hardware and system configuration requirements for each VM on which Oracle SOA Suite, Oracle Service Bus, Oracle BAM
components are installed is:
•     4 CPU Cores; each with a clock speed of 1.5 GHz or greater
•     8 GB RAM (Physical Memory)
•     Disk Space: 50 GB SAN Disk Space on each VM
Please note we have separate domain for all three components. Typically JVM size is 1GB for admin server and 2GB for managed servers. With this configuration, the memory usage is always around 90%.. If you want to reduce the memory usage %, you may have to increase the RAM size..

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