ORA-15078
        Oracle ASM disk group was forcibly dismounted
        
        
        Cause
        The Oracle Automatic Storage Management (Oracle ASM) disk group was dismounted (with the ALTER DISKGROUP DISMOUNT FORCE statement), and therefore it could not be accessed.
        Action
        Mount the disk group using the ALTER DISKGROUP MOUNT statement to allow access to the disk group again.
        
     
    
    
        ORA-15078
        ASM diskgroup was forcibly dismounted
        
        
        Cause
        The diskgroup to which the I/O request was issued was forcibly dismounted (with the ALTER DISKGROUP DISMOUNT FORCE command) so that it could not be accessed.
        Action
        Mount the diskgroup to allow access again.
        
     
    
    
        ORA-15078
        ASM diskgroup was forcibly dismounted
        
        
        Cause
        The diskgroup to which the I/O request was issued was forcibly dismounted (with the ALTER DISKGROUP DISMOUNT FORCE command) so that it could not be accessed.
        Action
        Mount the diskgroup to allow access again.