What is Uptime and Availability in Web Hosting?

 

In our past blog, we gave you a list of things you need to consider in choosing a web host or web hosting. For a web host to be reliable, you need to look at your uptime and availability. These two terms are commonly used by hosting providers and are sometimes used interchangeably. However, uptime and availability are actually different from each other. But what exactly is the difference between the two?

Uptime is basically considered as the length of time which a system or machine is able to be left running without crashing. This also signifies the time that the actual server is up and powered on and available to the system administrators.

Availability, on the other hand, means the server is up with all the services in it. It also refers to the access to the services the system has available for the users to access. “Downtime” is the term used when it is unavailable.

You may compute for your hosting’s availability by multiplying the total time in the year (in minutes) by the uptime guarantee.

For example:

Availability %	Downtime per year	Downtime per month	Downtime per week
90%	36.5 days	72 hours	16.8 hours
95%	18.25 days	36 hours	8.4 hours
97%	10.96 days	21.6 hours	5.04 hours
98%	7.30 days	14.4 hours	3.36 hours
99%	3.65 days	7.20 hours	1.68 hours
99.5%	1.83 days	3.60 hours	50.4 minutes
99.8%	17.52 hours	86.23 minutes	20.16 minutes
99.9%	8.76 hours	43.2 minutes	10.1 minutes
99.95%	4.38 hours	21.56 minutes	5.04 minutes
99.99%	52.56 minutes	4.32 minutes	1.01 minutes

iManila’s services include hosting which has 99% uptime and 24/7 email support and 12/7 phone support. You may learn more about web hosting and other web services by visiting us on our website at imanila.ph. You can also call our tech support specialists at (02) 959-4807.