You may encounter the following error when running splex_uname on AIX 3.1:
"Quest Software Inc. splex_uname version 5.1.7.575
Local system info:
Error : Unknown problem"
Splex_uname is not able to find objrepos.
Set the following environment variable:
ODMDIR=/etc/objrepos
and then run splex_uname.
Setting ODMDIR=/etc/objrepos will resolve this issue on AIX.