Storage (TOS)


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ACM Transactions on Storage (TOS), Volume 9 Issue 1, March 2013

Ursa: Scalable Load and Power Management in Cloud Storage Systems
Gae-Won You, Seung-Won Hwang, Navendu Jain
Article No.: 1
DOI: 10.1145/2435204.2435205

Enterprise and cloud data centers are comprised of tens of thousands of servers providing petabytes of storage to a large number of users and applications. At such a scale, these storage systems face two key challenges: (1) hot-spots due to the...

Improving Bandwidth Efficiency for Consistent Multistream Storage
Andromachi Hatzieleftheriou, Stergios V. Anastasiadis
Article No.: 2
DOI: 10.1145/2435204.2435206

Synchronous small writes play a critical role in system availability because they safely log recent state modifications for fast recovery from crashes. Demanding systems typically dedicate separate devices to logging for adequate performance...

Pyramid Codes: Flexible Schemes to Trade Space for Access Efficiency in Reliable Data Storage Systems
Cheng Huang, Minghua Chen, Jin Li
Article No.: 3
DOI: 10.1145/2435204.2435207

We design flexible schemes to explore the tradeoffs between storage space and access efficiency in reliable data storage systems. Aiming at this goal, two new classes of erasure-resilient codes are introduced -- Basic Pyramid Codes (BPC) and...