MGMTDB: Grid Infrastructure Management Repository

MGMTDB is new database instance which is used for storing¬†Cluster Health Monitor (CHM) data. In 11g this was being stored in berkley database but starting Oracle database 12c it is configured as ¬†Oracle Database Instance. In 11g, .bdb files were stored in $GRID_HOME/crf/db/hostname and used to take up lot of space (>100G) due to bug…