Data deduplication has become a standard component in modern backup systems. In order
to understand the fundamental tradeoffs in each of its design choices (such as prefetching …

In backup systems, the chunks of each backup are physically scattered after deduplication,
which causes a challenging fragmentation problem. We observe that the fragmentation …

Slow restoration due to chunk fragmentation is a serious problem facing inline chunk-based
data deduplication systems: restore speeds for the most recent backup can drop orders of …

Backup storage systems often remove redundancy across backups via inline deduplication,
which works by referring duplicate chunks of the latest backup to those of existing backups …

Effectiveness and tradeoffs of deduplication technologies are not well understood--vendors
tout Deduplication as a" silver bullet" that can help any enterprise optimize its deployed …

Deduplication technologies are increasingly being deployed to reduce cost and increase
space-efficiency in corporate data centers. However, prior research has not applied …

Deduplication has become essential in disk-based backup systems, but there have been
few long-term studies of backup workloads. Most past studies either were of a small static …

The compression and throughput performance of data deduplication system is directly
affected by the input dataset. We propose two sets of evaluation metrics, and the means to …

Modern deduplication has become quite effective at eliminating duplicates in data, thus
multiplying the effective capacity of disk-based backup systems, and enabling them as …

Deduplication is known to effectively eliminate duplicates, yet it introduces fragmentation
that degrades read performance. We propose RevDedup, a deduplication system that …