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ACM Transactions on Storage (TOS), Volume 10 Issue 2, March 2014

Towards High-Performance SAN with Fast Storage Devices
Jae Woo Choi, Dong In Shin, Young Jin Yu, Hyeonsang Eom, Heon Young Yeom
Article No.: 5
DOI: 10.1145/2577385

Storage area network (SAN) is one of the most popular solutions for constructing server environments these days. In these kinds of server environments, HDD-based storage usually becomes the bottleneck of the overall system, but it is not enough to...

Read-Performance Optimization for Deduplication-Based Storage Systems in the Cloud
Bo Mao, Hong Jiang, Suzhen Wu, Yinjin Fu, Lei Tian
Article No.: 6
DOI: 10.1145/2512348

Data deduplication has been demonstrated to be an effective technique in reducing the total data transferred over the network and the storage space in cloud backup, archiving, and primary storage systems, such as VM (virtual machine) platforms....

Beyond MTTDL: A Closed-Form RAID 6 Reliability Equation
Jon G. Elerath, Jiri Schindler
Article No.: 7
DOI: 10.1145/2577386

We introduce a new closed-form equation for estimating the number of data-loss events for a redundant array of inexpensive disks in a RAID-6 configuration. The equation expresses operational failures, their restorations, latent (sector) defects,...

Analytic Models of SSD Write Performance
Peter Desnoyers
Article No.: 8
DOI: 10.1145/2577384

Solid-state drives (SSDs) update data by writing a new copy, rather than overwriting old data, causing prior copies of the same data to be invalidated. These writes are performed in units of pages, while space is reclaimed in units...