ORA-07303
        database block size specified in parameter file is invalid
        
        
        Cause
        The database block size must be a multiple of the physical block size, and less than the maximum block size.
        Action
        Verify that the db_block_size parameter is correct in INIT.ORA and restart the instance. Consult platform specific documentation for supported sizes.
        
     
    
    
        ORA-07303
        ksmcsg: illegal database buffer size.
        
        
        Cause
        The database buffer size must be a multiple of the database block size, and less than the maximum block size.
        Action
        Verify that the db_block_size parameter is correct in INIT.ORA.
        
     
    
    
        ORA-07303
        ksmcsg: illegal database buffer size.
        
        
        Cause
        The database buffer size must be a multiple of the database block size, and less than the maximum block size.
        Action
        Verify that the db_block_size parameter is correct in INIT.ORA.