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Oracle R12 Certified for Linux 64-bit on the x86_64 Platform

Oracle R12 is certified to install on 64-bit Linux for X86_64 platforms. Yeah, I know that’s old news. The interesting part here is it’s not “pure” 64-bit software like the Oracle Database on Linux 64-bit: R12 is taking advantage of the OS’s capability to run 32-bit executables.

If we look at metalink note 416305.1, there is a big list of 32-bit RPMs in the pre-req packages list for R12 on 64-bit Linux. This is not something new — 11i on Solaris, HP-UX, and AIX also had the same behaviour.

11i doesn’t take advantage of 64-bit capabilities of the OS at full scale. It runs in 32-bit mode even on a 64-bit OS, as all its executables are 32-bit. One place where 11i does use the 64-bit feature is the “Memory Based Planner” program, which is part of the Advanced Supply Chain Planning (ASCP) module. Oracle shipped a 64-bit version of the program only for the Solaris, AIX, and HP-UX platforms, while the Linux version had just the 32-bit version. I have seen customers who added a Solaris Middle Tier to their Linux 11i instances just to run this 64-bit Planner program, spending all the dollars they saved with Linux middle tiers thus far, in consulting fees to add that extra Solaris middle tier node.

The good news for R12 customers is that, we don’t need a Solaris, AIX or HP-UX middle tier any more to run the 64-bit Planner program. Oracle has started shipping 64-bit Planner (MSONWL64.exe) for Linux 64-bit from version 12.0.3 onwards. Check Metalink note 254810.1 for details.

If you are a early adopter of R12 with a version earlier than 12.0.3, its time to patch up to 12.0.3 or 12.0.4. and migrate to the Linux 64-bit platform. This migration to Linux 64-bit should not be a big hassle, as it is binary-compatible with Linux 32-bit. I expect it be as simple as 1) copy, 2) relink, and 3) startup. I will, however, find out the exact method, and post here in the blog.

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