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The cookie is used to store the user consent for the cookies in the category "Analytics". This cookie is set by GDPR Cookie Consent plugin. These cookies ensure basic functionalities and security features of the website, anonymously. Necessary cookies are absolutely essential for the website to function properly. An SLA level of 99.99% for example equates to 52 minutes and 36 seconds of downtime per year. Guaranteed uptime is expressed as SLA level and is generally the most important metric to measure the quality of a hosting provider. Uptime is the amount of time that a service is online available and operational. Number of hours your network is up and running per year ÷ 8,760 hours per year x 100 = Yearly uptime percentage. You can calculate your network uptime with some simple math: 24 hours per day x 365 days per year = 8,760 hours per year. How much cumulative downtime per year will an SLA percentage of 99.95 give? This then gives you a percentage service level. The service level formula is simply the number of calls answered within the service level threshold divided by the number of calls offered, multiplied by 100. If we look at clustered industry standard systems, the range typically falls between 99.5 percent and 99.9 percent uptime. If we step back for a moment to consider the uptime seen with typical industry standard (x86-based) physical systems, 95 percent to 99 percent uptime is a pretty common range. What does availability/uptime mean in the real world? Availability % Planned downtime is anticipated by an ISP, and usually happens for technical and maintenance reasons. An ISP can experience both planned or unplanned downtime. Downtime refers to the percentage of time that an internet service is inactive. Uptime is the percentage of time that an ISP’s internet service is active. Uptime and downtime with 99.95 % SLA Monthly: 21m 54s. What is the expected downtime for an SLA of 99.95 %? A step above, 99.99%, or “four nines,” as is considered excellent uptime. The industry generally recognizes this as very reliable uptime. What is a good uptime percentage?Īmazon, Google, and Microsoft’s set their cloud SLAs at 99.9%. How much downtime in a 99% guarantee? If your business uses a service with a 99% uptime guarantee that means you should expect: 14 minutes, 24 seconds of downtime every day 1 hour, 40 minutes and 48 seconds of downtime every week 6 hours, 43 minutes and 12 seconds of downtime every month and. 5 How much cumulative downtime per year will an SLA percentage of 99.95 give?.