The exact hardware and software configuration that you need for Content Manager OnDemand to support your organization depends on the volume of data that you plan to maintain on the system, the number of concurrent users that the system must support, the backup and recovery requirements of your organization, and the performance levels that the system must meet.
At a minimum, you need one processor for a standard Content Manager OnDemand library/object server.
For all Linux server requirements, see http://www.ibm.com/support/docview.wss?uid=swg27043162