[Sep 15, 2006 Update: Clarified minimum requirements for 9iR2 and 10gR1 configurations.]
[May 24, 2006 Update: This post has been revised with a clearer explanation of our certified configurations for 64-bit platforms.]
Here’s a certification question that seems to recur in waves corresponding to hardware vendor announcements, namely, “Does the E-Business Suite work on 64-bit platforms?”

The short answer is, “Yes, in a number of different configurations.”
The following are the platforms supported for the application tier and the
database tier of E-Business Suite Release 11i:
Configurations”
In Release 11i, we certify and support a split configuration, where:
Release 2 database (9iR2) and the 10g
Release 1 database (10gR1), we support the following additional 64-bit
platforms on the database tier in a split configuration for Release 11i:
Suite Release 11.5.8 at minimum, and 10gR1 split configurations require 11.5.9 CU2 at minimum.
What
About the 10gR2 Database?
[Editor Sep 15 Update: For a discussion about the latest 10gR2 split configurations, see 10gR2 Database Split Configurations for Release 11i]
How About the Application Server Tier?
Application tier support on HP-UX Itanium as well
as Linux x64 is planned for Release 12, and is
being evaluated, but is not yet committed or planned, for Linux Itanium, Windows
Itanium, and Windows x64. Support for Sun Solaris SPARC, HP-UX PA RISC, and IBM
AIX (all 64-bit) will be continued.
References
The following are the platforms supported for the application tier and the
database tier of E-Business Suite Release 11i:
- HP-UX PA RISC (64-bit)
- Sun Solaris SPARC (64-bit)
- IBM AIX (64-bit)
- HP Tru64 UNIX (64-bit)
- Windows x86 (32-bit)
- Linux x86 (32-bit)
- HP-UX PA RISC (64-bit)
- HP-UX Itanium (64-bit)
- Sun Solaris SPARC (64-bit)
- IBM AIX (64-bit)
- Windows x86 (32-bit)
- Linux x86 (32-bit)
- Linux x86-64 (64-bit)
Configurations”
In Release 11i, we certify and support a split configuration, where:
- The database tier runs on a platform not supported for the application
tier
- The application server tier runs on one of the six platforms listed
above
Release 2 database (9iR2) and the 10g
Release 1 database (10gR1), we support the following additional 64-bit
platforms on the database tier in a split configuration for Release 11i:
- HP-UX Itanium
- Linux Itanium
- Linux x86-64
- Windows Server 2003 Itanium
Suite Release 11.5.8 at minimum, and 10gR1 split configurations require 11.5.9 CU2 at minimum.
What
About the 10gR2 Database?
[Editor Sep 15 Update: For a discussion about the latest 10gR2 split configurations, see 10gR2 Database Split Configurations for Release 11i]
How About the Application Server Tier?
Application tier support on HP-UX Itanium as well
as Linux x64 is planned for Release 12, and is
being evaluated, but is not yet committed or planned, for Linux Itanium, Windows
Itanium, and Windows x64. Support for Sun Solaris SPARC, HP-UX PA RISC, and IBM
AIX (all 64-bit) will be continued.
References
- 10gR2 Database Split Configurations for Release 11i
- Mixed Platform Architectures for Release 12
- Itanium Database Server FAQ (Note 311717.1)
- x86-64 Database Server FAQ (Note 343917.1)