- Why is the number 9 so special?
- Is 9 a holy number?
- Is 9 an evil number?
- What does five nines mean?
- Is 9 the most powerful number?
- How many nines are in uptime?
- What is considered high availability?
- When should I use 999?
- What is the number 999 for?
- How uptime is calculated?
- What does 4 nines mean?
- What is a good uptime percentage?
- How do you measure downtime?
- How do you get 99.99 Availability?
- How many minutes per year is five 9s?
- How many minutes per month of downtime is 99.99 Availability?
- What does 777 mean?
- How many nines is high availability?
- What does 3 9s mean?
- What do 999 mean spiritually?
- What does 99.999% uptime mean?
Why is the number 9 so special?
The number 9 is revered in Hinduism and considered a complete, perfected and divine number because it represents the end of a cycle in the decimal system, which originated from the Indian subcontinent as early as 3000 BC.
Nine is a significant number in Norse Mythology..
Is 9 a holy number?
Number 9 is a symbol of completeness of God and also a symbol of finality. … There are also 9 spiritual gifts of God, such as faith, wisdom, miracles, prophecy and some others. You may have heard of the Day of Atonement. This day is a holy day for all Christians and it takes place on the 9th day of the 7th Hebrew month.
Is 9 an evil number?
Examples. The first evil numbers are: 0, 3, 5, 6, 9, 10, 12, 15, 17, 18, 20, 23, 24, 27, 29, 30, 33, 34, 36, 39 …
What does five nines mean?
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. German 15 cm (5.9 in) artillery shells used in World War I.
Is 9 the most powerful number?
Which is the strongest number? Number 9 is the strongest number among all numbers. Number 9 stands for initiation, wisdom, and spiritual enlightenment. When number 9 is multiplied with other numbers, the result will always reduce to 9.
How many nines are in uptime?
Percentage calculationAvailability %Downtime per yearDowntime per day99.9999% (“six nines”)31.56 seconds86.40 milliseconds99.99999% (“seven nines”)3.16 seconds8.64 milliseconds99.999999% (“eight nines”)315.58 milliseconds864.00 microseconds99.9999999% (“nine nines”)31.56 milliseconds86.40 microseconds12 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.
When should I use 999?
You should always call 999 if someone is seriously ill or injured, or their life is at risk.Cardiac arrest/ collapse/ unconsciousness.Chest pain / heart attack.Convulsions / fitting.Stroke symptoms.Traumatic / serious injury.Severe burns / scalds.Choking.Drowning.More items…
What is the number 999 for?
The meaning of number 999 is completion. The number 9 is the last single digit, so when you see this number everywhere you go, something in your life is ending or will be completed soon. … The angel number 999 represents your angels working for your benefit.
How uptime is calculated?
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 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 is a good uptime percentage?
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. If we look at clustered industry standard systems, the range typically falls between 99.5 percent and 99.9 percent uptime.
How do you measure downtime?
The downtime productivity loss calculation is typically represented as: Number of users affected multiplied by the percent effect on productivity multiplied by the average burdened salary per hour multiplied by the duration of downtime equals downtime impact.
How do you get 99.99 Availability?
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.
How many minutes per year is five 9s?
Literally, “five 9s” is defined as your computing infrastructure working 99.999% of the time (which means the maximum downtime in a year is no more than 5 minutes and 15.36 seconds annually, or slightly longer in a leap year). The concept and phrase have long been associated with telecommunications.
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 777 mean?
Highly spiritual Angle Number 777 is the Sign of getting Divine Guidance. That indicates Its time to get rewards for your efforts. Angel numbers can mean different things. However, if you are seeing the angel number often and often then you should be happy. That is because the angel number means only positive things.
How many nines is high availability?
Companies aiming for high availability (HA) talk about four nines (less than an hour of downtime a year), which is what we strived for during my time at Netflix. Five nines availability, which means only five minutes of downtime per year, is ambitious.
What does 3 9s 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.
What do 999 mean spiritually?
If you’re seeing number 999 quite often, the spiritual meaning of 999 is commonly related to the end of a cycle in your life. It is a means of closure to clear away unfulfilling things so that you can prepare for a whole new cycle.
What does 99.999% uptime mean?
For example, “5 nines uptime” means that a system is fully operational 99.999% of the time — an average of less than 6 minutes downtime per year. The chart shows what impact various availability levels have on your server downtime.