ORA-28591: agent control utility: unable to access parameter file Cause: The agent controlutility was unable to access its parameter file. This could
be because it could not find its admin directory or because permissions on
directory were not correctly set. Action: The agent controlutility puts its parameter file in either the directory
pointed to by the environment variable AGTCTL_ADMIN or in the directory
pointed to by the environment variable TNS_ADMIN. Make sure that at least one 16-166 Oracle Database ErrorMessages
of these environmentvariables is set and that it points to a directory that the agent
has access to.