Similarity and Location Aware Scalable Deduplication System for Virtual Machine Storage Systems

I.INTRODUCTION In this paper with the potentially unlimited storage space offered by cloud providers, users tend to use a large amount space as they can and vendors continually look for techniques aimed to reduce redundant data and exploit space savings. A technique which has been widely adopted is crossuser deduplication. The simple idea behind deduplication is to accumulate duplicate data only once. Therefore, if a user wants to upload a file which is already store, the cloud provider will insert the user to the owner list of that file. Deduplication has proved deduplication eliminates unneeded data segments from the backup and reduces the size of toalize high space and cost savings and many cloud storage providers are currently adopt it. the backup data. This is particularly useful in Cloud Storage Where data is transferred to the storage target over WAN. Deduplication with Cloud Storage not only reduces the storage space requirements, but also reduces the data that is transferred over the network resulting in earlier and capable of data protection operations. In Direct Deduplication to cloud, the cloud storage is defined as the storage target in the Media Agent. Deduplication is enabling either at the client or at the Media Agent. The deduplicated data is transferred to Cloud Storage library. The deduplication database resides on the Media Agent (or on a designated volume that is attached to the Media Agent). Deduplication can be enabled for derivative copies during Storage Policy Copy creation. In this setup, data on the prime copy is not deduplicated. The non-deduplicated data can be deduplicated by enabling deduplication on the Abstract: