There is known problem when upgrading from 3.x to 4.1 and you must use
"CONVERT ARCHIVE REORG=Yes" for each node. The other approach
is to start at least once the GUI client (usualy you do not backup the
server manually but through command line client, right). This was included
in 4.1.2 or 4.1.3
The upgrade of the OS caused us a grief a couple of times. Here's
the note from the readme:
**
* Possible performance degradation due to threading *
***
When we went to AIX 4.3.3 we saw no problems
When we went from TSM server 3.7.2.0 we went (with a stop at 4.1.0.0 to pick
up license info) straight to 4.1.4.0 and we are now going to 4.1.5.0 based
on apar IC30347.
Our performance has always been good (same as before, maybe better) apar
IC30347 has