Availability loss is a measure of the amount of time that a system or equipment is not functioning as intended or is unavailable for use. It can be expressed as a percentage of total time, or as the amount of time that the system is not available during a given period.
Availability loss can be caused by a variety of factors, such as equipment failure, maintenance or repair work, power outages, or other disruptions. It is important to minimize availability loss in order to ensure that a system or equipment is functioning effectively and efficiently.
There are several ways to measure and track availability loss. One common method is to use a measure called uptime, which represents the percentage of time that a system is available. Uptime is calculated by dividing the total amount of time that the system is operational by the total amount of time it is expected to be operational. For example, if a system is expected to be operational for 8,760 hours in a year (assuming 24 hours per day), and it is only operational for 8,600 hours, its uptime would be 98.3%.
Another way to measure availability loss is to use a measure called mean time between failures (MTBF). This measure represents the average amount of time that a system or equipment is operational before it fails. MTBF is calculated by dividing the total amount of time that the system is operational by the number of failures that occur.
Availability loss can have significant impacts on an organization, including reduced productivity, increased costs, and decreased customer satisfaction. Therefore, it is important to identify and address the root causes of availability loss in order to improve the reliability and performance of systems and equipment. This may involve implementing preventative maintenance programs, investing in quality control and testing, or adopting new technologies or processes.