Improving restore performance in deduplication-based backup systems via a fine-grained defragmentation approach
In deduplication-based backup systems, the removal of redundant data transforms the
otherwise logically adjacent data chunks into physically scattered chunks on the disks. This …
otherwise logically adjacent data chunks into physically scattered chunks on the disks. This …
[PDF][PDF] FGDEFRAG: A fine-grained defragmentation approach to improve restore performance
In deduplication-based backup systems, the removal of redundant data transforms the
otherwise logically adjacent data chunks into physically scattered chunks on the disks. This …
otherwise logically adjacent data chunks into physically scattered chunks on the disks. This …
Building a high-performance fine-grained deduplication framework for backup storage with high deduplication ratio
Fine-grained deduplication, which first removes identical chunks and then eliminates
redundancies between similar but non-identical chunks (ie, delta compression), could …
redundancies between similar but non-identical chunks (ie, delta compression), could …
Improving restore performance of packed datasets in deduplication systems via reducing persistent fragmented chunks
Data deduplication, though being efficient for redundancy elimination in storage systems,
introduces chunk fragmentation which severely decreases restore performance. Rewriting …
introduces chunk fragmentation which severely decreases restore performance. Rewriting …
Reducing fragmentation for in-line deduplication backup storage via exploiting backup history and cache knowledge
In backup systems, the chunks of each backup are physically scattered after deduplication,
which causes a challenging fragmentation problem. We observe that the fragmentation …
which causes a challenging fragmentation problem. We observe that the fragmentation …
A fragmentation-aware redundancy elimination scheme for inline backup systems
Data deduplication is a widely employed technique in backup systems to enhance storage
efficiency by eliminating duplicate chunks. Delta compression is a technique that …
efficiency by eliminating duplicate chunks. Delta compression is a technique that …
Reducing impact of data fragmentation caused by in-line deduplication
Deduplication results inevitably in data fragmentation, because logically continuous data is
scattered across many disk locations. In this work we focus on fragmentation caused by …
scattered across many disk locations. In this work we focus on fragmentation caused by …
Improving restore performance for in-line backup system combining deduplication and delta compression
Y Zhang, Y Yuan, D Feng, C Wang… - … on Parallel and …, 2020 - ieeexplore.ieee.org
Data deduplication, though being efficient in removing duplicate chunks, introduces chunk
fragmentation which decreases restore performance. Rewriting algorithms are proposed to …
fragmentation which decreases restore performance. Rewriting algorithms are proposed to …
Inde: An inline data deduplication approach via adaptive detection of valid container utilization
Inline deduplication removes redundant data in real-time as data is being sent to the storage
system. However, it causes data fragmentation: logically consecutive chunks are physically …
system. However, it causes data fragmentation: logically consecutive chunks are physically …
Accelerating restore and garbage collection in deduplication-based backup systems via exploiting historical information
In deduplication-based backup systems, the chunks of each backup are physically scattered
after deduplication, which causes a challenging fragmentation problem. The fragmentation …
after deduplication, which causes a challenging fragmentation problem. The fragmentation …