What is High Availability?


In Hosting, the term high availability is been used to describe the period of time the service is available, and also the time needed by a system to respond to the request done by the user. High availability means a quality of a system or component that make sure the high level of operational performance for a given period of time.


An introduction to High Availability:

High availability ensures the procedures, infrastructure, and the system designs to make sure the specific level of accessibility to the server. Accessibility needs both power and network connectivity moreover the functional server. If one or all of those necessities are compromised, it's must be unavailable. This level of availability is most often included in the SLA (Service Level Agreement). The often metric used to describe the high availability service is in the percentage of the availability.


Availability is usually expressed as a percentage offering how much of uptime is predicted from a specific system or component in a given amount of time. If a value of 100% indicates then the system will never fail. For eg, a system that guarantees 99.99% of availability over a period of one month can have up to 8.64 seconds of downtime per day. The availabilities are been deliberated related to different factors, consisting of both the scheduled and unscheduled maintenance period. It is also the time to recover from the possible system failure.   


System components that are required for high availability:


There are numerous system components that have to be considered for implementing high availability. More than implementing of software, high availability depends on factors like:


1) Data: Loss of data and inconsistency may be caused by many factors, and it is not restricted to the hard disk collapse. Highly available systems should account for the safety of data during the time of any failure.


2) Software: the total software stack, along with the operating system and therefore the application itself, should be prepared for handling sudden failure that would probably need a system restart occasionally.


3) Hardware: HIgh availability of servers must be resilient to power outages and hardware failures, along with hard disks and network interfaces.


4) Network: The network outages which are unplanned represent another possible point of failure for highly available systems. It's necessary that a redundant network strategy is in place for the possible failures.


5) Environment: If all of your servers are being situated within the same geographic region, natural disasters such as flooding or earthquake might take your whole system down. Having redundant servers in several data centers and geographical areas can increase responsibility.


HostingRaja High Availability:


While it comes to hosting the first aspect to be considered is the uptime of the server. It does not matter how big resources are configured on your server or how your website is optimized, it's always necessary to be online. In Hostingraja we have adopted the latest technologies into the servers to provide the maximum of uptime. We offer 99.99% uptime with all our hosting plans. This feature makes our services more reliable and dependable hosting provider among our competitors. For more details related to high availability, you can contact our sales team via Live Chat or toll-free no 1800-123-8642.