Server Load Balancing.

About load balancing mechanism - IP Spraying
When multiple web servers are present in a server group, the HTTP traffic needs to be evenly distributed among the servers. In the process, these servers must appear as one web server to the web client, for example an internet browser. The load balancing mechanism used for spreading HTTP requests is known as IP Spraying. The equipment used for IP spraying is also called the 'load dispatcher' or 'network dispatcher' or simply, the 'load balancer'. In this case, the IP sprayer intercepts each HTTP request, and redirects them to a server in the server cluster. Depending on the type of sprayer involved, the architecture can provide scalability, load balancing and fail-over requirements.
When multiple web servers are present in a server group, the HTTP traffic needs to be evenly distributed among the servers. In the process, these servers must appear as one web server to the web client, for example an internet browser. The load balancing mechanism used for spreading HTTP requests is known as IP Spraying. The equipment used for IP spraying is also called the 'load dispatcher' or 'network dispatcher' or simply, the 'load balancer'. In this case, the IP sprayer intercepts each HTTP request, and redirects them to a server in the server cluster. Depending on the type of sprayer involved, the architecture can provide scalability, load balancing and fail-over requirements.
Architecture.
● Why is load balancing of servers needed?
If there is only one web server responding to all the incoming HTTP requests for your website, the capacity of the web server may not be able to handle high volumes of incoming traffic once the website becomes popular. The website's pages will load slowly as some of the users will have to wait until the web server is free to process their requests. The increase in traffic and connections to your website can lead to a point where upgrading the server hardware will no longer be cost effective.
In order to achieve web server scalability, more servers need to be added to distribute the load among the group of servers, which is also known as a server cluster. The load distribution among these servers is known as load balancing. Load balancing applies to all types of servers (application server, database server), however, we will be devoting this section for load balancing of web servers (HTTP server) only.
● ServerDiff Features
1. Installation is simple and convenient management
ServerDiff friendly with support Chinese web interface for customers to operate. Even the most troublesome installation, only three steps to complete. Later, the server management related settings are available on the web interface intuitive operation. After a difficult management personnel do not need the education and training, the transfer is also very easy to significantly reduce overall management costs.
2. No changes to existing network infrastructure
Changes to the original installation ServerDiff network structure is not required to, whether servers, firewalls, DNS can maintain the original settings, just as the network hub device will ServerDiff before the server can enjoy quality services ServerDiff .
3. Without the client's usage patterns change
ServerDiff without taking up additional virtual IP. End ServerDiff device, the client IP to connect to the server as usual operation of the original, you can enjoy ServerDiff load balancing.
4. ServerDiff administrators can view the server information directly
ServerDiff can be directly related to the normal operation of whether the server logging and traffic charts.
5. Have to install a simple dual-redundancy
Host failure backup player will automatically take over. Backup machine is easy to install, host configuration changes will be automatically passed if backup machines, backup machine without taking up extra IP.
If there is only one web server responding to all the incoming HTTP requests for your website, the capacity of the web server may not be able to handle high volumes of incoming traffic once the website becomes popular. The website's pages will load slowly as some of the users will have to wait until the web server is free to process their requests. The increase in traffic and connections to your website can lead to a point where upgrading the server hardware will no longer be cost effective.
In order to achieve web server scalability, more servers need to be added to distribute the load among the group of servers, which is also known as a server cluster. The load distribution among these servers is known as load balancing. Load balancing applies to all types of servers (application server, database server), however, we will be devoting this section for load balancing of web servers (HTTP server) only.
● ServerDiff Features
1. Installation is simple and convenient management
ServerDiff friendly with support Chinese web interface for customers to operate. Even the most troublesome installation, only three steps to complete. Later, the server management related settings are available on the web interface intuitive operation. After a difficult management personnel do not need the education and training, the transfer is also very easy to significantly reduce overall management costs.
2. No changes to existing network infrastructure
Changes to the original installation ServerDiff network structure is not required to, whether servers, firewalls, DNS can maintain the original settings, just as the network hub device will ServerDiff before the server can enjoy quality services ServerDiff .
3. Without the client's usage patterns change
ServerDiff without taking up additional virtual IP. End ServerDiff device, the client IP to connect to the server as usual operation of the original, you can enjoy ServerDiff load balancing.
4. ServerDiff administrators can view the server information directly
ServerDiff can be directly related to the normal operation of whether the server logging and traffic charts.
5. Have to install a simple dual-redundancy
Host failure backup player will automatically take over. Backup machine is easy to install, host configuration changes will be automatically passed if backup machines, backup machine without taking up extra IP.