Oracle Error ORA-56867: Cannot connect to Master Diskmon on pipe “string”

Oracle Error Message

ORA-56867: Cannot connect to Master Diskmon on pipe “string”

Reason for the Error

Master Diskmon was not running or the listening pipe was deleted.

Solution

Look at the $ORA_CRS_HOME/log//diskmon/diskmon.log, $ORA_CRS_HOME/log//hasmsgs.log and $ORA_CRS_HOME/log//alert.log for additional error information.