Data Deduplication Solutions are becoming an enterprise reality

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Data deduplication technologies are deployed in many forms and many places within the backup and recovery infrastructure. It has evolved from being delivered within specially designed disk appliances offering post processing deduplication to being a distributed technology found as an integrated part of backup and recovery software The primary benefit of deduplication is the reduced backup cost where you can save a huge amount of data in terms of size especially when you save the de-duplicated data to tape.

Data volumes are rapidly escalating; today, organizations create more data than ever. It’s been estimated that every two days we now generate as much data as existed in total before the dawn of the new millennium. Data is increasingly helping organizations in devising business strategies. With the rise of smart analytics, organizations strive to leverage all the available information for more business value by detecting and acting on underlying patterns. This is the primary reason why data storage and protection is a high priority for organizations.

The most valuable asset in today’s information society is data, which must be stored, backed-up, and archived. Many modern storage systems secure the data using cryptography. Some of the critical issues of security in storage include data leakage and security threats for data stored in the cloud. Protecting data at rest in storage systems poses new challenges compared to protecting data in flight, which has been the focus of communication security for some time and is well understood today. One notable difference between these two problems is that communication channels typically use a streaming interface with First-In/ First-Out (FIFO) characteristic, whereas storage systems must provide random access to small portions of the stored data.

Why Data Deduplication?
Data deduplication is one of the hottest technologies in storage right now because it enables companies to save a lot of money on storage costs to store the data and on the bandwidth costs to move the data when replicating it offsite for DR. This is great news for cloud providers, because if you store less, you need less hardware. Data deduplication is one of important data compression techniques for eliminating duplicate copies of repeating data, and has been widely used in cloud storage to reduce the amount of storage space and save bandwidth. To protect the confidentiality of sensitive data while supporting deduplication, the convergent encryption technique has been proposed to encrypt the data before outsourcing. Different from traditional deduplication systems, the differential privileges of users are further considered in duplicate check besides the data itself. Whenever the cloud users upload a file to server.

While sending files if it is duplicating the server will popup it is duplication message. This access is done in private cloud key generation, the deduplicate checker system will check the file names, file format, file content and file capacity and it will compare whether it is same or matching the uploading file from the exiting file in cloud server. The stored files should be encrypted after uploaded to the cloud server and are decrypted upon the client’s request. Only public users need the key for decryption while the private user does not. The encryption algorithm provides data confidentiality and authentication to the cloud server.

Data Deduplication in Clouds
Cloud is certainly gaining momentum. Yet many IT solutions traditionally used for data protection purposes, in areas such as backup and archiving, lack the complete range of features needed to apply to a cloud context. They may, for instance, not integrate well with other cloud capabilities, provide comprehensive scripting and policy management, or even work properly with virtual servers —the basic building block of clouds.

Cloud computing provides seemingly unlimited “virtualized” resources to users as services across the whole Internet, while it will hide the platform and implement the details. In today cloud service providers offer both highly available storage and massively parallel computing resources at relatively low costs. Cloud computing becomes prevalent and an increasing amount of data is being stored in the cloud and shared by users with specified privileges, which define the access rights for the storage data. One critical challenge of cloud storage services is the management of the ever-increasing volume of data. To make the data management scalable in cloud computing, deduplication it have been known as a technique and has attracted more and more attention recently used.

The data deduplication is a specialized data compression technique for eliminating duplicate copies of repeating data’s are stored. The technique is used to improve storage utilization and can also be applied to network data transfers to reduce the number of bytes that must be sent. Instead of keeping the multiple data copies with the same content, which the deduplication eliminates redundant data by keeping only one physical copy and referring other redundant data to that copy. The Deduplication can take place at either the file level or at the block level. The file level deduplication, it eliminates duplicate copies of the same file. The deduplication can also take place at the block level, which eliminates the duplicate blocks of data that occur in non-identical files.

In today’s technology-dependent business, even small data disruptions can render heavy losses. Growing incidents of data loss has led to the growth of the data recovery requirement. There have been remarkable advances in data recovery technology. Going by the present trend, one can safely assume that there will be a meteoric rise in the growth of the data recovery industry. Customers have become more aware of their needs in this space and expect quick, efficient, and safe services. Natural disasters will continue to push organizations in the direction of DR.

Benefits of using Deduplicaiton Technologies
The benefits of using deduplicaiton technologies are very clear. It offers reduced disk capacity and the associated costs and also greater efficiencies around IT functions that involve storing or moving data. Compression on the other hand, is a process that shrinks a data set so that it occupies less storage space, and can be transmitted across the network faster and easier, he said. Compression is useful because it helps reduce the consumption of resources, like disk space or bandwidth. On the downside, compressed data must be decompressed to be used so tradeoffs have to be made with compression so that it isn’t detrimental to performance.

The amount of data enterprises are generating today and the kind of backup and recovery challenges they are facing, it makes sense for them to consider deduplication technologies. Data growth over the last few years is really at the root of deduplications rapid ramp. With annual data growth rates of 40-60 percent, more customers are running into the limits of their available backup windows, and they aren’t able to meet their SLAs for recovery.
The growth of storage needs on the back-end, for both backup and archive, is contributing to power and cooling concerns – and data center real estate concerns too. In particular, the growth of unstructured data which is often hugely redundant, has created the need for greater efficiencies in how primary storage itself is utilized, he told.
CIOs be able to retain more, keeping your backups longer while using less disk through deduplication that delivers a 10-30 times data reduction compared to traditional methods. With efficient deduplication, you can eliminate the use of tape for operational recovery.

For these reasons, organizations are increasingly seeking new ways to shield their critical data from many forms of risks. Yet given the fact that IT budgets are often either flat or actually falling, this is a puzzle that will often require a creative solution. Enterprises are deploying private and hosted clouds to respond faster to business demands for new apps to improve service levels for given workloads, and to reduce cost across the data center. The enterprise storage architecture deployed is paramount for ensuring agility, performance, and reliability of a private or hosted cloud.

Finally
The data growth challenges that every organization is facing are pushing the implementation of new backup and recovery technologies to help meet service level agreements around availability and performance. Shrinking budgets are pulling IT departments in the opposite direction. Data Deduplication is a technology that helps organizations balance these opposing demands. Disk based backups can be rolled out in order to reduce the backup window and improve recovery time, and deduplication means the investment in those disk based targets is maximized.

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