Mean Time Between Failures (MTBF), Mean Time To Replacement (MTTR), and Mean Time To Failure (MTTF) are useful metrics for evaluating the reliability and availability of a storage resource. Explore these concepts by answering the questions about devices with the following metrics. Given: MTTF = 3 years, MTTR = 1 day (a) Calculate (i) MTBF and (ii) availability.
(b) What happens to availability as the MTTR approaches 0? Is this a realistic situation?
(c) What happens to availability as the MTTR gets very high, i. e., a device is difficult to repair? Does this imply the device has low availability?

Write a function that draws a pool ball. this function should take as parameters, the color, the number that should go on the pool ball, and the location of the center of the pool ball. the radius of the pool balls should be pool_ball_radius, and the font of the number should be pool_ball_font. the text of the pool ball font should be white. drawpoolball(color.orange, 5, 100, 100); drawpoolball(color.green, 6, 50, 200); drawpoolball(color.red, 3, 150, 350); drawpoolball(color.blue, 2, 250, 140); to center the numbers on the pool ball, you should use the getwidth() and getheight() methods. you are allowed to call these methods on your text object, such as txt.

What are "open-loop" and "closed-loop" systems

What is the definition of digital literacy?