In cloud computing the datacenters are utilized to coordinates the distinct tasks where tasks may require more resources and source of these cloudlets could be from thousands of users. These datacenters aims to deliver reliable services. But the equal reliability to all the users at the same time according to their requirements may be a difficult task and may vary. So in this paper we purpose a technique that considers optimized elastic reliability in cloud computing using distance based server selection policy. In our scheme reliability enhancement through distance dependent check pointing with resource maximization mechanism is distance aware checkpoint. Resource maximization mechanism uses division policy which divides the jobs by looking at the capacity of virtual machine on which load is to be dispersed. This operation can efficiently solve the problem of reliability. it improves the resource usage in the datacenters and also gives optimized reliability to the user.

Reliability, Checkpointing, datacenters, cloudcomputing

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