Deduplication in the Backup System with Information Storage in a Database

Survey on Fragmentation for Deduplication in Backup Storage

In backup environments field deduplication yields major advantages. Deduplication is process of automatic elimination of duplicate data in a storage system and it is most effective technique to reduce storage costs. Deduplication effects predictably in data fragmentation, because logically continuous data is spread across many disk locations. Fragmentation mainly caused by duplicates from previ...

Backup-to-disk and Recovery with Deduplication

An Optimization of Backup Storage using Backup History and Cache Knowledge in reducing Data Fragmentation for In_line deduplication in Distributed

The chunks of data that are generated after the backup are physically distributed after deduplication in backup system, which creates a problem know as fragmentation. Basically fragmentation basically comes into sparse and outof-order containers. The sparse container adversely affect the performance while restoring the database and garbage collection effectively , while the out-of-order contain...

Low-Cost Data Deduplication for Virtual Machine Backup in Cloud Storage

In a virtualized cloud cluster, frequent snapshot backup of virtual disks improves hosting reliability; however, it takes significant memory resource to detect and remove duplicated content blocks among snapshots. This paper presents a low-cost deduplication solution scalable for a large number of virtual machines. The key idea is to separate duplicate detection from the actual storage backup i...

A Lookahead Read Cache: Improving Read Performance of Deduplication Storage for Backup Applications

Abstract—Data deduplication (for short, dedupe) is a special data compression technique and has been widely adopted especially in backup storage systems with the primary aims of backup time saving as well as storage saving. Thus, most of the traditional dedupe research has focused more on the write performance improvement during the dedupe process while very little effort has been made at read ...