MARCH 30, 2015

In recent times, we have access to huge volumes of data. The reason for this explosion of data can be attributed to social media. Since the data availability is exploding, the complexity of processing is also increasing. Every organisation will have its own private/internal cloud for data processing. All the requests from the user and the internal requests will be processed in this private cloud. The private cloud will be configured according to the organisational needs and it will have a limit for processing the requests. If the private cloud runs out of resources, the organisation can burst the additional workload to the public/external cloud on an on-demand basis. This process is known as cloud bursting.

Cloud bursting becomes extremely crucial in catering to the varying workload levels. An internal cloud will never have a capacity larger than the average workload of the organisation. But there is no guarantee that the workload will forever be within the average limit. Spikes are quite common. Few days it may be more and few other days it may be even more. To overcome this, the concept of cloud bursting is used. You may wonder why the capacity of internal cloud is never increased! The reason for this is the additional cost involved in doing so and these spikes come and go. So any organisation will try to keep the resources limited and control costs.-

Cloud bursting is not as easy as it is described here. As mentioned already, it is available on on-demand basis. Private vendors will manage external data centres and make it available for organizations on demand. There are many challenges involved in this process. Since many organisations will be using the same external cloud, there may be security concerns and it is possible for the external cloud to run out of resources. The main challenges in this regard are:

  • App Configuration Management – Cloud bursting an application involves the use of same type of resources. But there may be variations in the versions of software available in the external cloud. So it is essential that all those applications are configured properly or else it will result in fatal errors.
  • Pro-active Communications – If the data and application are in different clouds, then there is a possibility of latency. This will eventually decrease the efficiency especially when the communication is over public internet. So, this route should be optimized.
  • Encryption & Security – As always security is a major concern, because several users will be accessing the cloud at the same time. So it is essential that the channels are properly encrypted. There are several approaches available to create secured communication channels.

Cloud bursting will show the way for organizations to optimize storage costs while taking care of data security. Companies will make the best use of infrastructures by launching resources on demand and managing workloads in the best way.

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