Hi,
no idea how the commvault software works but lit me try to help anyways :
You have most probably configured DB2 to use commvalut for archiving. E.g.:
(LOGARCHMETH1) = VENDOR:/commvault/opt/simpana/Base64/libDb2Sbt.so
Commvault forum posts ( e.g. http://forum.commvault.com/forums/thread/20686.aspx ) show that the commvalut lib needs dependent libs from the same directory. Check if the following libs exist that you did not find above.
/commvault/opt/simpana/Base64/libDb2JobUnit.so
/commvault/opt/simpana/Base64/libDb2_Util.so
This implies that LD_LIBRARY_PATH needs to include /commvault/opt/simpana/Base64/ for the commvault lib to be loaded.
Have you made sure that LD_LIBRARY_PATH is set correctly for the user that runs db2start. Maybe you made a change to the default db2 login scripts that got overwritten during the FP install.
Regards
Frank