Solaris VS AIX

we are in the process of Migrating from Solaris to AIX. While cross platform Migration can be used to migrate from solaris to AIX. I am wondering if anyone had some thoughts on "lessons learned" while migrating from Solaris to AIX. Both the advantages and the disadvantages.
any inputs provided will be greatly appreciated.

migrating from Solaris to AIXYes! Make sure to check-out the AIX-centric I/O methods, especially CIO. Oracle on AIX offers thee main I/O options, and the DBA needs to pick the one that's right for their database:
JFS - Journalled File System
CIO - Concurrent I/O (uses JFS)
DIO - The Direct I/O option
AIX has the Concurrent IO (CIO) method within their JFS filesystem, allowing the use of JFS while achieving fast I/O (almost as fast as raw devices). Raw partitions in AIX are quite cumbersome and CIO is a great alternative since you get the ease of administration and the speed of “almost raw”.
However, high-DML database may want to use direct I/O (DIO instead of JFS or CIO.
I have more notes here:
http://www.dba-oracle.com/t_aix_cio.htm
Hope this helps. . .
Don Burleson
Oracle Press author
Author of “Oracle Tuning: The Definitive Reference”
http://www.dba-oracle.com/bp/s_oracle_tuning_book.htm

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