A file hosting service is specifically designed to host static content, usually large files, which are not web pages. The one-click hosting sites are web services that allow any internet user to easily upload any type of file from your hard drive to free hosting server and without registration.
Most such services simply return a short URL that can be spread to other people, so they can download the file with any browser can do. Since 2005 these sites have dramatically increased in popularity and many smaller sites have failed and less efficient.
Although generally hosted files tend to be larger than the space offered for accommodation users ‘start’ files into approximately 100 mb and getting further facilitate access to content for users who do not have premium accounts.
Most services space storage reaches gigabyte files some offer a free service funded by advertising. Some services require software installation specific to that particular page. In Gmail the huge storage space is used by some users as a virtual hard disk., Where up some files to download later on another machine.
Web servers
High Availability refers to the ability of a system (web servers) in spite of failure of one of its components with a high probability (often 99.99 % or better) to ensure operation. In contrast to fault tolerance may lead to an interruption in the operation in case of failure.
A Web Hosting in Australia system is referred to as available if it is able to perform the tasks for which it is intended. Availability is defined as the ratio of unplanned (fault- related) downtime and total production time of a system:
Availability classes
The question as to which system can be classified as highly available, is answered differently depending on the definition of availability. An availability of 99% is generally not defined as availability, it is now regarded as normal, at least for high-quality IT equipment. Consequently, only 99.9% or higher is regarded as availability.
If we calculate the above formula, the availability in the period of a year, this corresponds to an availability of 99.99%. The Harvard Research Group (HRG) shares high availability in its Availability Environment Classification (AEC) in six Web Hosting in Australia classes.
High availability is defined in companies often in the context of Service Level Agreements (SLA), and represents an essential criterion for evaluating IT Services. Many fault-tolerant systems must be available 24/7 the whole year. However, some of these systems have the property of availability only for a particular time segment.
Generally HA systems strive to eliminate so-called single-point-of-failure risks (SPOF) (a SPOF is a single component whose failure leads to failure of the entire system).
