Uptime

Downtime is almost never a good thing (even when it’s planned for), so ensuring uptime remains as close as possible to 100% is vitally important for any business. If an ecommerce website was to experience significant downtime, for example, it would likely lead to considerable loss of revenue for the organization.

Uptime is calculated based on the number of hours a server is available during a specified period of time, and is normally expressed as a percentage. For example, annual uptime is calculated by dividing the number of hours of uptime by the total number of hours in a year, and multiplying by 100.There are 8,760 hours in a year (365 x 24 = 8760). If there were 4 hours of downtime during the year, that means a total of 8,756 hours of uptime. To get the annual uptime percentage, you’d do the following calculation:(8756 / 8760) x 100The answer to above equation is 99.9543378995, which means the annual uptime percentage would equal 99.95%.