On AIX 5.3 pmcmd command fails with following error:
Could not load program ./pmcmd:
Could not load module /u01/Informatica/PowerCenter8.6/server/bin/libpmser.a.
Dependent module /lib/libz.a could not be loaded.
The module has an invalid magic number.
Could not load module pmcmd.
Dependent module /u01/Informatica/PowerCenter8.6/server/bin/libpmser.a could not be loaded.
Could not load module .
This issue has been fixed on one of the latest hotfixes.
To workaround the issue, rename /lib/libz.a so that libz.a which is shipped with Informatica is picked up.