AIX 5.3 Issues

We are planning to move to AIX 5.3 and we would like to know if someone has had any 'bad' experiences with it.

We have a 32PE p690 Regatta and currently we are running the latest AIX 5.2 with the latest patches. Has anyone any interesting points to mention when transitioning to AXI 5.3?

Is everything working properly?

Are there any applications that do not run properly?

Is PPE/POE (mpi) working properly under AIX 5.3?

Any hints or points to watch for would be greatly appreciated,

Michael

I've personally never done it, maybe I won't ever. The absoulte best way to do this is to test it on another server. If you have a scratch server that can be used for this, then go that route. Otherwise, it's like walking into a dark room...maybe there's a floor, maybe there isn't...