if you are just moving your sec, com, dta, src, jdf type libs be aware anything that gets created outside of these will need to br recreated (see list)
outqs.
jobd's.
user profiles,
you may need to rerun software licence manager to create the idx's in QGPL
create the jde message file
system 00 install key may also be required
make sure that the profile who owns all the objects on the source system exists on the new (target) system, otherwise the objects are owned by the ibm profile QDFTOWN.
Outqueue definitions.
This is no way meant to be a complete list but its a starting point i guess.