What Is A Good Uptime Percentage?

How much downtime is acceptable?

Most companies strive for 99.9 percent uptime.

That equates to 8 hours and 45 minutes of website downtime per year, but by putting certain practices into place you may actually be able to achieve 99.99 percent uptime, which equates to less than an hour of downtime each year..

What is SLA example?

A service level agreement (SLA) is an agreement between an IT Service provider and a customer. For instance, you are a customer of a bank and the bank provides services to you. … For example, the bank will allow you to withdraw money from an ATM and the transaction will last no longer than 10 seconds.

How many minutes per month of downtime is 99.99 Availability?

Identify dependenciesSLADowntime per weekDowntime per month99.9%10.1 minutes43.2 minutes99.95%5 minutes21.6 minutes99.99%1.01 minutes4.32 minutes99.999%6 seconds25.9 seconds1 more row•Oct 16, 2019

What does 99.9% uptime mean?

Uptime is the amount of time that a service is available and operational. Uptime is generally the most important metric for a website, online service or web based provider and is expressed as a percentage such as ‘99.9%’. For example a 99.9% uptime equates to 43 minutes and 50 seconds of downtime.

What is SLA percentage?

First Response SLA% = The percentage of the number of tickets where the first responses were sent within the SLA divided by the total number of tickets on which the first responses were sent in a selected time period within the filters on the reports.

How many 9’s of availability are required?

The accepted availability standard for emergency response systems is 99.999% or “five nines” – or about five minutes and 15 seconds of downtime per year (see table below). To achieve five nines, all components of the system must work seamlessly together.

What does 6 nines mean?

Five-nines or 99.999% availability means 5 minutes, 15 seconds or less of downtime in a year. Or, if you are really ambitious, shoot for six nines or 99.9999% availability, which allows 32 seconds or less downtime per year.

What does 3 nines mean?

Three nines or 99.9% availability allows 8 hours, 46 minutes downtime per year. Two nines or 99% availability allows 3 days, 15 hours and 40 minutes downtime per year. One nine or 9% availability allows over 332 days of downtime per year.

How long are websites usually down?

The latest research from Hosting Facts has revealed the average website is down three hours a month due to the downtime of web host providers. With 99.9% uptime promises, guarantees and refunds from host providers, Hosting Facts says it doesn’t really matter when your site is down if you have lost all traffic.

What is uptime and downtime?

Uptime is a computer industry term for the time during which a computer or IT system is operational. … Downtime, the opposite of uptime, is the period of time when a system is not operational. The terms uptime and downtime are used to define the level of success provided by real-time services.

What does 5 nines mean?

99.999%Five nines, commonly taken to mean “99.999%”, may refer to: High availability of services, when the downtime is less than 5.26 minutes per year. Nine (purity), a 99.999% pure substance.

How many hours is 99.99 uptime?

Percentage calculationAvailability %Downtime per yearDowntime per month99.8%17.53 hours87.66 minutes99.9% (“three nines”)8.77 hours43.83 minutes99.95% (“three and a half nines”)4.38 hours21.92 minutes99.99% (“four nines”)52.60 minutes4.38 minutes12 more rows

What is considered high availability?

High Availability (HA) describes systems that are dependable enough to operate continuously without failing. They are well-tested and sometimes equipped with redundant components. … High availability refers to those systems that offer a high level of operational performance and quality over a relevant time period.

What does 4 nines mean?

4.38 minutes downtime per monthJul 8, 2016·4 min read. Let’s start with what 4 9’s means exactly: Four Nines is 4.38 minutes downtime per month, or 52.56 minutes per year. That’s probably more than acceptable for almost all services on the Internet, not all, but almost all. So your email is down for 4 minutes each month, not the end of the world.

What are the 3 types of SLA?

3 Types of Service Level AgreementsCustomer-based SLA. This type of agreement is used for individual customers and comprises all relevant services that a client may need, while leveraging only one contract. … Service-based SLA. This SLA is a contract that includes one identical type of service for all of its customers. … Multi-level SLA.Dec 3, 2018

How do you calculate downtime in minutes?

To define the uptime and downtime percentages, we perform the following calculation:Total number of seconds your website was down: 600 seconds.Total number of seconds your website was monitored: 86,400. … This is the downtime percentage.The uptime percentage for this website would be: 100% minus 0.69% is 99.31%.

What is downtime for a person?

Downtime for a person is a time when the person can relax: I have three kids, so downtime is scarce.

What do you do in your downtime?

55 Productive Things to Do When You Have DowntimeRead a Book. I love reading. … Learn a New Skill. No matter where you are in your life, there’s always room to learn new skills! … Listen to a Podcast. You guys, I’m obsessed with podcasts. … Work Out. … Get Outdoors. … Map Out Your Goals. … Revisit Old Goals. … Start a Blog.More items…

How can I get high availability?

Here are some of the key resources you can implement to make high availability possible:Implement multiple application servers. … Scaling and slaves matters. … Spread out physically. … Maintain a recurring online backup system along with hardware. … Use of a virtualized server for zero-downtime recovery.