Oracle : Ошибка ORA-09845

"soacon: Archmon unable to open named pipe."
*Cause: open() failed to open named pipe ?/dbs/arch2mon_@.
*Action: 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.

Попробовать перевести

Поискать эту ошибку на форуме