Scenario:A company has three (3) components in a system and requires them to be operational for 120 hours week, Monday to Friday. Failure of component 1 occurs as follows:Monday = No failure.Tuesday =

Scenario:

A company has three (3) components in a system and requires them to be operational for 120 hours week, Monday to Friday. Failure of component 1 occurs as follows:

• Monday = No failure.
• Tuesday = 5 a.m. to 7 a.m.
• Wednesday = No failure.
• Thursday = 4 p.m. to 8 p.m.
• Friday = 8 a.m. to 11 a.m.

Directions: Using the scenario above, respond to the items below.

• Calculate the MTBF (Mean Time Between Failures) and MTTR (Mean Time to Repair) of component 1.
• Show your steps of how you calculated the MTBF.

  Steps:

  1. MTBF = Total Uptime / Number Failures

     Total Uptime = (Number of Days Required Operational x Hours per Day Available) - Number of Hours Not Available

  2. MTTR = Total Downtime / Number of Failures
• What does the MTBF measurement tell you about the goal of having 99.999% uptime or Information Availability on system components?