Why Do You Need An Application Develivery Controller?
IT enterprises are constantly under pressure to offer efficient performing services at an inexpensive rate
. Therefore, a continuous series of small incremental IT enhancement is not going to be adequate enough for making IT services to be agile and cost-efficient. What is therefore needed is a radically new approach on how IT services needs to be offered aiming towards incremental improvements.
An approach that has been most IT organizations have adopted is that of server virtualization. The main benefit of this is that it enables IT enterprises to consolidate the servers. The outcome generally is a minimization of expenses and agility. For instance, the moment a server has been virtualized, it is possible to provision virtual machines (VM) dynamically and to shift these VMs amidst the physical servers. This is possible both within disparate data centers or a given data center without any service interruption. However, though VMs can be shifted between physical servers within a few seconds/minutes it can take a couple of days to reconfigure the assisting architecture. IT enterprises are not able to leverage the complete value of server virtualization unless the infrastructure elements that assist a VM can be reconfigured or shifted to assist the VM once shifted.
An essential component of the infrastructure that assists a VM is the application delivery controller (ADC). Numerous IT enterprises have successfully implemented ADCs in an attempt to enhance application performance. An ADC enhances application performance by remaining in front of a server and offering service requests to the members of the server farm. This is done based on the criteria for instance the load that a single server is processing presently. Another way by which an ADC enhances application performance is by conducting computationally intensive tasks, like TCP or SSL processing by freeing up by server resources. Furthermore, an ADC has the capacity to accelerate the application performance offered through the wide area network (WAN) by deploying optimization methods such as reverse caching and compression.
Today eminent service providers specializing in load balancers have introduced high-end ADCs that offer the following benefits:
Minimize the single points of failure
Enhance performance by disseminating traffic amidst numerous servers
Enhances user experience and minimizes server overhead with SSL acceleration
Guarantees data-access and application consistency
Helps in optimizing resources by effectively allocating traffic depending on application types
Therefore, deploying an advanced ADC solution from a leading market player for ensuring systematic traffic management and optimizing application and web performance is an efficient way to avert server downtime issues.
by: Martinlobo
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