It depends...
Do you use some OS/390 indexer in AIX?
I ask that, because the difference between AIX and Linux, now a day is really that part. That's a module that was "ported" from mainframe to AIX only.
Therefore if you have that functionality working on your AIX, then the answer is no you cannot. It might change in the future, but today that's not the case.
If not, then yes, you can move from AIX to Linux, I've done it zillions of time.
Basically, the easiest migration plan is to keep the same username, same database name, same path for all the path that you've configured in AIX, and transpose if 1:1 to Linux.
Then, you need to do a database migration (db2move).
And if you want to upgrade CMOD (to V9.X) then after the restore of the database, then perform the upgrade to CMOD V9.X.
Don't forget to copy the cache (be careful, because you have a lot of links inside)
The last thing, when you create the database in Linux, please use exactly the same codepage as the original database, otherwise you might face some strange behaviour...
Of course, you might want to change the CMOD instance owner name, the database name, the paths, etc... it is all possible, but requires more preparation and changes a little bit everywhere in CMOD.
In all cases, before doing ANY changes in production, please TEST TEST and TEST again, that it works for you... because you don't want to go in production without testing and destroying it.
--
Alessandro
