ORA-64722
        number of drives must be greater than zero
        
        
        Cause
        The specified number of tape drives was NULL or was less than or equal to zero.
        Action
        Specify a number of tape drives greater than 0 and retry the operation.
        
     
    
    
        ORA-64722
        number of drives must be greater than zero
        
        
        Cause
        The specified number of tape drives was NULL or was less than or equal to zero.
        Action
        Specify a number of tape drives greater than 0 and retry the operation.
        
     
    
    
        ORA-64722
        number of drives must be greater than zero
        
        
        Cause
        The specified number of tape drives was NULL or was less than or equal to zero.
        Action
        Specify a number of tape drives greater than 0 and retry the operation.