Monday, December 2, 2013

Server & Network High Availability Systems - When You Just Cannot Afford Down Time

Given the high demand, the high availability architecture is one of the most important requirements for an Enterprise development. There are extensive set of high availability features, which protect the components and applications from untimely and unplanned down time and in return minimize the planed downtime.

A network high availability system is created to function when either of its components fail to work. Designed to do this, the high availability system contains backup components which it automatically switches over to when one or more of its active components stop working. The system is designed to switch automatically primarily to make the fail over to look seamless to the users so that the service and function is not interrupted in anyway.

Features &Benefits of High Availability System

  • Built-in Redundancy:
Although high availability makes use of high quality equipment by default to built highly durable systems, but they still cannot promise complete reliability. The systems are still vulnerable to outages. To ensure utmost reliability, high availability systems come with built-in redundancy. The critical parts of the IT systems will be put together with redundancy in order to provide 100 percent uptime.

  • Real-Time Backups:
Today most of the backup tools work on a schedule or on demand. In order to ensure that the recovery copy is accurate within a short frame of time, there has to be a tool that allows more frequent backups. Real-time backups or continuous backups allow automatically saving a copy of every change made to a file, essentially capturing every version of the file and guarantying that the recovery copies are accurate to within a few minutes.

  • Automated Fail-Over:
During the time of unplanned outage, it becomes extremely important to transfer the operations and applications to backup resources in the shortest time frame. When this failover situation occurs, traditionally human intervention is required, which is quite slow and unreliable. To deal with this critical problem, high availability system come with an advanced automated fail-over technology that enables both automated fail-over and automated fail-back when the original outage is resolved.

  • Automated Off-Site Backups:
With advancement in technology a better backup solution has been developed called the automated off-site backups. Unlike the traditional method where the backup copies required to be shifted to a secondary location manually, the automated off-site backup does it without depending on IT personnel to execute that process.

  • Convenient implementation:
One of the most interesting and useful features of high availability is that it is very convenient. Implementation of High availability systems do not interrupt business operations as they are assembled and tested separately, making its implementation hassle-free. Once the system is

  • Cost efficient:
High availability systems are not just more reliable and convenient, but are also cost efficient. With the high availability system, one doesn’t require many servers. Just a single physical server is capable of running 2 or more virtual servers, hence cutting down on the extra cost associated with purchasing additional servers. 

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