This article addresses frequently asked questions about Oracle E-Business Suite (EBS) 64-bit Linux support.

Q:  Which 64-bit Linux OSs are supported for EBS?

A: Beginning with Release 12, we support the following 64-bit operating systems for both application and database tiers on x86-64 servers:

• Oracle Enterprise Linux
• Red Hat Enterprise Linux
• SUSE Linux Enterprise Server

For EBS Release 11i (and again in Release 12), when the application tier is installed on a certified platform, additional platforms (including the above) may be used for a 64-bit database tier on x86-64 servers. This is an example of a mixed platform architecture (Release 12), or a Split Configuration (Release 11i).

Q:  I understand that the EBS application tier code is 32-bit, even for the 64-bit Linux OS -- is this the case?
A: It is true that the majority of executables provided as part of our release media on the application tier are 32-bit (as are the Fusion Middleware libraries and objects they depend on).  However, the 'Planning' products have large memory requirements and therefore are 64-bit compiled to take advantage of the larger memory space afforded by the 64-bit OS'es.