After the database is upgraded to 9.2 and has been stable for some time, I would then consider upgrading the operating
system to AIX 5.3. Remember to take a full system backup, if possible, before you perform either of these upgrades. Also, after upgrading your operating system, remember to relink the Oracle9i binaries. Of essential importance is testing this upgrade in a non-production environment. This testing does not just include the actual upgrade, but also thoroughly testing all applications that rely on this Oracle database.
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