Oracle Solution for Error ora-09845

ORA-09845: soacon: Archmon unable to open named pipe.

What triggered the Error:

open() failed to open named pipe ?/dbs/arch2mon_@.

What should we do to fix it:

Only the oracle dba can run archmon. Make sure that your current OS login has owner or group search permission for the ORACLE_HOME/dbs directory. The max number of open files may have been exceeded.