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(816 results)Search the Library
Mission Statement
TechRepublic's ITPapers is the Web's largest library of free technical IT white papers, webcasts, and case studies. Covering IT categories including Data Management, IT Management, Networking, Communications, Enterprise Applications, Storage, Security and much more, TechRepublic's White Paper Directory is the best source for technical white papers and IT information.
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White Papers
File server performance comparison of three Dell PowerVault NX3000 configurations using Microsoft FSCT
Mar 2011
Dell Inc. commissioned Principled Technologies to compare the performance of three Dell PowerVault NX3000 unified network storage solution configurations running tasks that users at a remote...
Provided by Dell
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White Papers
Simplifying Management Through Windows Storage Consolidation on Dell PowerVault NX3000 NAS Appliances
Mar 2011
Consolidating Microsoft® Windows® file shares into a common pool of network-accessible resources helps increase utilization, simplify management, and enhance service levels. Organizations can...
Provided by Dell
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White Papers
A System for Managing Physical Data in Buildings
Sep 2010
In order to reduce building energy consumption, the authors need a global, accurate view of the building. Many modern buildings have a sensing infrastructure that can be used to do fine-grained...
Provided by University of California
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White Papers
Practical Techniques for Eliminating Storage of Deleted Data
Jan 2011
The layered design of modern file systems hides the liveness of data from the underlying storage systems. In this paper, the authors define a generic "Purge" operation that can be used by a file...
Provided by University of Minnesota
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White Papers
Rank Modulation for Flash Memories
Jan 2008
The authors explore a novel data representation scheme for multi-level flash memory cells, in which a set of n cells stores information in the permutation induced by the different charge levels of...
Provided by Texas A&M University
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White Papers
Codes for Asymmetric Limited-Magnitude Errors With Application to Multi-Level Flash Memories
Dec 2009
Several physical effects that limit the reliability and performance of Multilevel Flash Memories induce errors that have low magnitudes and are dominantly asymmetric. This paper studies block...
Provided by Institute of Electrical and Electronics Engineers
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White Papers
Trajectory Codes for Flash Memory
Dec 2010
Flash memory is well-known for its inherent asymmetry: the flash-cell charge levels are easy to increase but are hard to decrease. In a general rewriting model, the stored data changes its value...
Provided by Institute of Electrical and Electronics Engineers
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White Papers
Safe Transient Use of Local Storage for VM-Based Mobility
Mar 2010
This paper investigates the transient use of free local storage for improving performance in VM-based mobile computing systems. Many such systems boot from a portable storage device to create a...
Provided by Rutgers University
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White Papers
Cooperative Regenerating Codes for Distributed Storage Systems
Feb 2011
Distributed storage system provides a scalable solution to the ever-increasing demand of reliable storage. The storage nodes are distributed in different geographical locations, and in case some...
Provided by Institute of Electrical and Electronics Engineers
-
White Papers
Reusing Migration to Simply and Efficiently Implement Multi-Server Operations in Transparently Scalable Storage Systems
May 2010
Distributed file systems that scale by partitioning files and directories among a collection of servers inevitably encounter multi-server operations. A common example is a RENAME that moves a file...
Provided by Carnegie Mellon University
-
White Papers
Improved Results for a Memory Allocation Problem
Feb 2008
A problem that occurs in parallel processing is allocating the available memory to the processors. This needs to be done in such a way that each processor has sufficient memory and not too much...
Provided by University of Haifa
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White Papers
Memory Allocation in Distributed Storage Networks
May 2010
The authors consider the problem of distributing a file in a network of storage nodes whose storage budget is limited but at least equals the size file. They first generate T encoded symbols (from...
Provided by Georgia Institute of Technology
-
White Papers
Recursive Secret Sharing for Distributed Storage and Information Hiding
Jan 2010
This paper presents a recursive computational multi-secret sharing technique that hides k - 2 secrets of size b each into n shares of a single secret S of size b, such that any k of the n shares...
Provided by Oklahoma State University
-
White Papers
Distributed Storage Codes Meet Multiple-Access Wiretap Channels
Oct 2010
The authors consider the overhead minimization of Maximum-Distance Separable (MDS) storage codes for the repair of a single failed node and the total Secure Degrees-of-Freedom (S-DoF) maximization...
Provided by University of Southern California
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White Papers
AMI: An Advanced Endurance Management Technique for Flash Memory Storage Systems
Jan 2011
Flash memory is small size, lightweight, shock-resistant, nonvolatile, and consumes little power. Flash memory therefore shows promise for use in storage devices for consumer electronics, mobile...
Provided by Ajou University
-
White Papers
FAWNSort: Energy-efficient Sorting of 10GB
Jun 2010
In this paper, the authors describe the submission for the 2010 10GB JouleSort competition. The system consists of a machine with a low-power server processor and five flash drives, sorting the...
Provided by Carnegie Mellon University
-
White Papers
Self-Repairing Homomorphic Codes for Distributed Storage Systems
Jul 2010
Erasure codes provide a storage efficient alternative to replication based redundancy in (networked) storage systems. They however entail high communication overhead for maintenance, when some of...
Provided by Nanyang Technological University
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White Papers
Extensible Component Based Architecture for FLASH, a Massively Parallel, Multiphysics Simulation Code
Jul 2009
FLASH is a publicly available high performance application code which has evolved into a modular, extensible software system from a collection of unconnected legacy codes. FLASH has been...
Provided by University of Chicago
-
White Papers
JAM: Justifiable Allocation of Memory With Efficient Mounting and Fast Crash Recovery for NAND Flash Memory File Systems
Oct 2010
Flash memory is small size, lightweight, shock-resistant, non-volatile, and consumes little power. Flash memory therefore shows promise for use in storage devices for consumer electronics, mobile...
Provided by Ajou University
-
White Papers
EXCES: EXternal Caching in Energy Saving Storage Systems Luis
Jan 2008
Power consumption within the disk-based storage sub system forms a substantial portion of the overall energy footprint in commodity systems. Researchers have proposed external caching on a...
Provided by Florida International University
-
White Papers
Feasibility, Efficiency, and Effectiveness of Self-Optimizing Storage Systems
Jan 2011
Recent work has proposed making intelligent use of data access patterns for building self-optimizing storage systems. However, despite the continued increase in the CPU-I/O performance gap, such...
Provided by Carnegie Mellon University
-
White Papers
On the Issues of Building Information Warehouses
Jan 2010
While performing knowledge-intensive tasks of professional nature, the knowledge workers need to access and process large volume of information. Apart from the quantity, they also require that the...
Provided by Infosys Technologies
-
White Papers
Solving the Subset-Sum Problem With a Light-Based Device
Aug 2007
The authors propose a special computational device which uses light rays for solving the subset-sum problem. The device has a graph-like representation and the light is traversing it by following...
Provided by Babes-Bolyai University
-
White Papers
Solving the Hamiltonian Path Problem With a Light-Based Computer
Aug 2007
In this paper the authors suggest the use of light for performing useful computations. Namely, they propose a special computational device which uses light rays for solving the Hamiltonian path...
Provided by Babes-Bolyai University
-
White Papers
Tree-Structured Data Regeneration With Network Coding in Distributed Storage Systems
May 2009
Distributed storage systems, built on peer-to-peer networks, can provide large-scale data storage and high data reliability by redundant schemes, such as replica, erasure codes and linear network...
Provided by Fudan University
-
White Papers
Tree-Structured Data Regeneration in Distributed Storage Systems With Regenerating Codes
Dec 2009
Distributed storage systems provide large-scale reliable data storage by storing a certain degree of redundancy in a decentralized fashion on a group of storage nodes. To recover from data losses...
Provided by Fudan University
-
White Papers
Randomised Buffer Management With Bounded Delay Against Adaptive Adversary
Feb 2011
The authors study the Buffer Management with Bounded Delay problem, introduced by Kesselman et al., or, in the standard scheduling terminology, the problem of online scheduling of unit jobs to...
Provided by University of Wroclaw
-
White Papers
InZeit: Efficiently Identifying Insightful Time Points
Aug 2010
Web archives are useful resources to find out about the temporal evolution of persons, organizations, products, or other topics. However, even when advanced text search functionality is available,...
Provided by VLDB Endowment
-
White Papers
A Content-Aware Block Placement Algorithm for Reducing PRAM Storage Bit Writes
Mar 2010
Phase-change Random Access Memory (PRAM) is a promising storage-class memory technology that has the potential to replace flash memory and DRAM in many applications. Because individual cells in a...
Provided by University of Pittsburgh
-
White Papers
Modeling the Relative Fitness of Storage
Jun 2007
Relative fitness is a new black-box approach to modeling the performance of storage devices. In contrast with an absolute model that predicts the performance of a workload on a given storage...
Provided by Association for Computing Machinery
-
White Papers
A Systematic Approach to System State Restoration During Storage Controller Micro-Recovery
Jan 2009
Micro-recovery, or failure recovery at a fine granularity, is a promising approach to improve the recovery time of software for modern storage systems. Instead of stalling the whole system during...
Provided by Georgia Institute of Technology
-
White Papers
Using Utility Functions to Control a Distributed Storage System
May 2008
Provisioning, and later optimizing, a storage system involves an extensive set of trade-offs between system metrics, including purchase cost, performance, reliability, availability, and power....
Provided by Carnegie Mellon University
-
White Papers
On the Possibility of Small, Service-Free Disk-Based Storage Systems
Jan 2008
For many storage providers, the cost of providing service calls exceeds the costs of the hardware being serviced. In this paper, the authors show that zero maintenance, small disk arrays are too...
Provided by Santa Clara University
-
White Papers
Increased Reliability With SSPiRAL Data Layouts
Feb 2008
The authors evaluate the reliability of storage system schemes consisting of an equal numbers of data disks and parity disks where each parity disk contains the eXclusive OR (XOR) of two or three...
Provided by Institute of Electrical and Electronics Engineers
-
White Papers
Outshining Mirrors: MTTDL of Fixed-Order SSPiRAL Layouts
Oct 2007
Complementary trends in hardware and applications are driving an increase in demand for data volume and bandwidth, resulting in an increased risk of data loss and a growing need for improved...
Provided by University of Houston
-
White Papers
Flexible, Wide-Area Storage for Distributed Systems With WheelFS
Mar 2009
WheelFS is a wide-area distributed storage system intended to help multi-site applications share data and gain fault tolerance. WheelFS takes the form of a distributed file system with a familiar...
Provided by New York University
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White Papers
Comparison of Different Fingerprint Compression Techniques
Sep 2010
The important features of wavelet transform and different methods in compression of fingerprint images have been implemented. Image quality is measured objectively using Peak Signal to Noise Ratio...
Provided by AIRCC
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White Papers
Efficient Provenance Storage
Jun 2010
As the world is increasingly networked and digitized, the data the authors store has more and more frequently been chopped, baked, diced and stewed. In consequence, there is an increasing need to...
Provided by Association for Computing Machinery
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White Papers
Positional Delta Trees to Reconcile Updates With Read-Optimized Data Storage
Aug 2008
The authors investigate techniques that marry the high read-only analytical query performance of compressed, replicated column storage ("Read-optimized" databases) with the ability to handle a...
Provided by Centrum Wiskunde & Informatica
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White Papers
Remote Oblivious Storage: Making Oblivious RAM Practical
Mar 2011
Remote storage of data has become an increasingly attractive and advantageous option, especially due to cloud systems. While encryption protects the data, it does not hide the access pattern to...
Provided by Massachusetts Institute of Technology
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Case Studies
Hitachi Data Systems Case Study: Ziggo
Apr 2010
Founded in 2007 as a result of a merger between the providers Casema, @Home and Multikabel, Ziggo provides 3.2 million connections of television, radio, Internet and telecommunications and reaches...
Provided by Hitachi Data Systems
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Case Studies
Hitachi Data Systems Case Study: Zhongda Hospital, Southeast University
Jun 2010
Located in Nanjing, Jiangsu Province, Nanjing Southeast University's affiliated Zhongda Hospital is an integrated tertiary grade-A hospital that has combined healthcare, education and research for...
Provided by Hitachi Data Systems
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Case Studies
Hitachi Data Systems Case Study: Yuan Ze University
Jan 2009
Yuan Ze University is committed to advanced technology, R&D and cultivation of elite students. IT service at Yuan Ze University needs ongoing improvement in order to serve its over 10,000 faculty...
Provided by Hitachi Data Systems
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Case Studies
Hitachi Data Systems Case Study: Vita Group
Feb 2009
As a new business operating three well known brands and managing data from 1,400 Australian employees, Vita Group experienced increasing difficulty managing its data storage needs. To simplify...
Provided by Hitachi Data Systems
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Case Studies
Hitachi Data Systems Case Study: Visy
Jul 2008
Visy is an Australian company that has grown to become the world's largest privately owned packaging and recycling business. The company's acquisition strategy caused it to double in size every...
Provided by Hitachi Data Systems
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Case Studies
Hitachi Data Systems Case Study: Viana
Jun 2010
A Mexico-based retail corporation with over 55 years in the market of house wares sales, Viana operates with 55 branch offices nationally and has over 1,700 employees. The company wanted to ensure...
Provided by Hitachi Data Systems
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Case Studies
Hitachi Data Systems Case Study: University of Utah Health Sciences Center
Sep 2010
The University of Utah Health Care provides medical services for residents well beyond its own state borders. The University of Utah has maintained a nimble IT infrastructure that addresses growth...
Provided by Hitachi Data Systems
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Case Studies
Hitachi Data Systems Case Study: University of Costa Rica
Dec 2009
The University of Costa Rica had gone through several IT problems during previous administrations; therefore, its main challenge was the consolidation and administration of information. A robust...
Provided by Hitachi Data Systems
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Case Studies
Hitachi Data Systems Case Study: University HealthSystem Consortium
Apr 2009
Virtualization University HealthSystem Consortium (UHC) is an alliance representing 90 percent of academic medical centers and affiliated hospitals in America. Hundreds of these health...
Provided by Hitachi Data Systems
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Case Studies
Hitachi Data Systems Case Study: Universiteit van Maastricht (Maastricht University)
Jan 2010
Although Maastricht University, founded in 1976, is the Netherlands youngest university, it has made it into the top three of Dutch university rankings, and it is also attracting increasing...
Provided by Hitachi Data Systems
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Case Studies
Hitachi Data Systems Case Study: Tripnet
Nov 2009
Increased storage needs among Swedish businesses presented storage outsourcing and management company Tripnet with new business opportunities. To capitalize on the fast growing demand of IT...
Provided by Hitachi Data Systems
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Case Studies
Hitachi Data Systems Case Study: TelstraClear
Feb 2009
Formed in December 2001 following a merger between TelstraSaturn and CLEAR Communications, TelstraClear combines highly skilled telecommunications support with New Zealand's most advanced IP...
Provided by Hitachi Data Systems
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Case Studies
Hitachi Data Systems Case Study: TUI InfoTec
Dec 2007
At the start of 2005, TUI InfoTec, the IT service provider of Europe's leading tourism group TUI, decided to fundamentally modernize its storage infrastructure. There were two primary goals: to...
Provided by Hitachi Data Systems
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Case Studies
Hitachi Data Systems Case Study: TNT
Aug 2009
As a leader in logistics and deliveries, TNT needs a robust IT and storage infrastructure to underpin its 24/7 business model. To support business growth and meet power efficiency targets, it...
Provided by Hitachi Data Systems
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Case Studies
Hitachi Data Systems Case Study: T-Hrvatski Telekom (Croatian Telekom)
Feb 2010
Since deregulation of Eastern European markets, telecommunications has experienced dramatic growth. It was no surprise that T-Hrvatski Telekom, the leading provider of telecommunication services...
Provided by Hitachi Data Systems
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Case Studies
Hitachi Data Systems Case Study: Sykehuspartner IKT
Mar 2009
Sykehuspartner IKT is a service provider to a number of hospitals and health care institutions in the South-Eastern Norway Regional Health Authority, which is one of four state owned health care...
Provided by Hitachi Data Systems
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Case Studies
Hitachi Data Systems Case Study: Eidgenössisches Institut für Geistiges Eigentum (IGE), The Swiss Federal Institute of Intellectual Property
Jan 2010
Headquartered in Bern, the Swiss Federal Institute of Intellectual Property is responsible for intellectual property matters in Switzerland. Founded in 1888it became an independent public law...
Provided by Hitachi Data Systems
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Case Studies
Hitachi Data Systems Case Study: Stadsarchief Amsterdam (Amsterdam City Archive)
Apr 2010
Stadsarchief Amsterdam is the biggest city archive in the world. Besides official and public documents, it also stores private collections and archive documents from companies. To prevent these...
Provided by Hitachi Data Systems
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Case Studies
Hitachi Data Systems Case Study: St. Mark's Catholic School
Jun 2008
A highly successful Catholic school in Hounslow, West London St. Mark's educates 1,200 students from ages 11 to 18. It is a forward thinking institution with the status of a technical college, so...
Provided by Hitachi Data Systems
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Case Studies
Hitachi Data Systems Case Study: Spoleto Municipality
Jul 2008
As a historical site known across five continents for its famous "Two Worlds Festival," Spoleto is one of the most precious towns of Italy. This small city is also at the cutting edge of...
Provided by Hitachi Data Systems
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Case Studies
Hitachi Data Systems Case Study: The Southern Grampians Shire Council
Jul 2010
The ten towns of the Southern Grampians Shire Council in Victoria, Australia, enjoy a breathtaking landscape - ancient volcanoes, meandering rivers, waterfalls and rolling pastoral lands -...
Provided by Hitachi Data Systems
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Case Studies
Hitachi Data Systems Case Study: Solta Medical
Oct 2009
A pending acquisition and significant new business growth led well known aesthetic company Thermage to change its corporate to Solta Medical. Simultaneously, the company needed to integrate and...
Provided by Hitachi Data Systems
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Case Studies
Hitachi Data Systems Case Study: SmartyHost
May 2008
Established in 1999, SmartyHost is a dynamic Web hosting company based in Melbourne that provides hosting and domain name registration services to a rapidly expanding customer base of 50,000....
Provided by Hitachi Data Systems
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Case Studies
Hitachi Data Systems Case Study: SingHealth
Mar 2008
The speed and reliability with which medical records are made available to health care professionals can make a critical impact on a patient's conditions and life. This is significantly so for...
Provided by Hitachi Data Systems
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Case Studies
Hitachi Data Systems Case Study: Sinar Mas Group subsidiary Asia Pulp & Paper Group, Ltd.
Sep 2009
Although Sinar Mas Group core business Asia Pulp & Paper Co., Ltd., (APP) was at the helm of their industry, the company wanted to become a world class, one stop enterprise for paper, and to...
Provided by Hitachi Data Systems
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Case Studies
Hitachi Data Systems Case Study: Sify Technologies Ltd.
May 2010
Sify is one of India's leading managed services providers, delivering end-to-end solutions for enterprises as well as consumers. To leverage the growing opportunities in cloud storage, Sify wanted...
Provided by Hitachi Data Systems
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Case Studies
Hitachi Data Systems Case Study: Shrewsbury International School
Jun 2009
Located in Bangkok, Thailand, Shrewsbury International School is located in Bangkok, Thailand. The independent school is closely affiliated to Shrewsbury School in the United Kingdom and reflects...
Provided by Hitachi Data Systems
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Case Studies
Hitachi Data Systems Case Study: Sealed Air
Jul 2008
Sealed Air, the maker of the popular Bubble Wrap brand cushioning and other high-tech packaging materials, runs a 24/7 global operation that continues to expand its product line, its innovative...
Provided by Hitachi Data Systems
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Case Studies
Hitachi Data Systems Case Study: Rothschild
Jan 2009
As one of the world's most prestigious financial organizations, Rothschild understands the need to ensure that its customer service is second to none. To enable employees to communicate quickly...
Provided by Hitachi Data Systems
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Case Studies
Hitachi Data Systems Case Study: Reynolds Porter Chamberlain LLP
Jun 2008
London-based business law firm Reynolds Porter Chamberlain LLP (RPC) serves a wide client base, encompassing large multinationals through to small entrepreneurial businesses. Its team of 260...
Provided by Hitachi Data Systems
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Case Studies
Hitachi Data Systems Case Study: Qualcomm
Apr 2010
For progressive industry veteran Qualcomm Incorporated, innovation and reliability are simpatico attributes for building good technology. When the wireless technology and services company needed...
Provided by Hitachi Data Systems
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Case Studies
Hitachi Data Systems Case Study: Payformance
Apr 2009
Payformance Corporation, a leading claim settlement solution company for the health care industry, helps both insurance companies and medical providers with electronic funds transfer and...
Provided by Hitachi Data Systems
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Case Studies
Hitachi Data Systems Case Study: Pacific Capital Bancorp
Nov 2009
Pacific Capital Bancorp, a fast growing California-based financial institution, needed to reconcile disparate systems and address data retention and shrinking backup window issues to meet...
Provided by Hitachi Data Systems
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Case Studies
Hitachi Data Systems Case Study: Overstock.com
Jul 2010
In a troubling economy, it is good to know that one company is looking out for the consumer. Overstock.com is a popular online retailer that offers brand name merchandise at deeply cut prices. To...
Provided by Hitachi Data Systems
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Case Studies
Hitachi Data Systems Case Study: Ohlone College - Newark Center for Health Sciences and Technology
Sep 2009
The Ohlone College Newark Center for Health Sciences and Technology is clearly committed to protecting the environment. Ohlone College decided to build another campus, the focus was on an...
Provided by Hitachi Data Systems
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Case Studies
Hitachi Data Systems Case Study: Netgroup A/S
Jan 2010
Netgroup A/S was founded in 1997 and currently hosts over 4,000 servers for Danish and foreign companies. The Danish specialist in virtual hosting and cloud computing, Netgroup is a shining...
Provided by Hitachi Data Systems
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Case Studies
Hitachi Data Systems Case Study: Neopost France
Feb 2010
Neopost France is Europe's leading supplier of mailroom equipment and logistics systems. There are significant constraints in terms of performance and volume requirements in such a professional...
Provided by Hitachi Data Systems
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Case Studies
Hitachi Data Systems Case Study: National Library of Scotland
Oct 2008
Founded in 1689 as the Faculty of Advocates, the National Library of Scotland (NLS) holds almost 400 years worth of the country's written history and culture. Scotland's legal deposit library for...
Provided by Hitachi Data Systems
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Case Studies
Hitachi Data Systems Case Study: National Healthcare Group (Singapore)
Mar 2008
National Healthcare Group, one of Singapore's largest health care organizations, needed to consolidate disparate systems and improve business continuity to remove barriers to better patient...
Provided by Hitachi Data Systems
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Case Studies
Hitachi Data Systems Case Study: National Computing & Information Agency
Aug 2009
National Computing & Information Agency (NCIA) is the core of the Republic of Korea national "Informatization." To provide uninterrupted public information, NCIA built the optimal IT...
Provided by Hitachi Data Systems
-
White Papers
Cooperative Regenerating Codes for Distributed Storage Systems
Feb 2011
Distributed storage system provides a scalable solution to the ever-increasing demand of reliable storage. The storage nodes are distributed in different geographical locations, and in case some...
Provided by Institute of Electrical and Electronics Engineers
-
White Papers
Reusing Migration to Simply and Efficiently Implement Multi-Server Operations in Transparently Scalable Storage Systems
May 2010
Distributed file systems that scale by partitioning files and directories among a collection of servers inevitably encounter multi-server operations. A common example is a RENAME that moves a file...
Provided by Carnegie Mellon University
-
White Papers
Improved Results for a Memory Allocation Problem
Feb 2008
A problem that occurs in parallel processing is allocating the available memory to the processors. This needs to be done in such a way that each processor has sufficient memory and not too much...
Provided by University of Haifa
-
White Papers
Memory Allocation in Distributed Storage Networks
May 2010
The authors consider the problem of distributing a file in a network of storage nodes whose storage budget is limited but at least equals the size file. They first generate T encoded symbols (from...
Provided by Georgia Institute of Technology
-
White Papers
Recursive Secret Sharing for Distributed Storage and Information Hiding
Jan 2010
This paper presents a recursive computational multi-secret sharing technique that hides k - 2 secrets of size b each into n shares of a single secret S of size b, such that any k of the n shares...
Provided by Oklahoma State University
-
White Papers
Distributed Storage Codes Meet Multiple-Access Wiretap Channels
Oct 2010
The authors consider the overhead minimization of Maximum-Distance Separable (MDS) storage codes for the repair of a single failed node and the total Secure Degrees-of-Freedom (S-DoF) maximization...
Provided by University of Southern California
-
White Papers
AMI: An Advanced Endurance Management Technique for Flash Memory Storage Systems
Jan 2011
Flash memory is small size, lightweight, shock-resistant, nonvolatile, and consumes little power. Flash memory therefore shows promise for use in storage devices for consumer electronics, mobile...
Provided by Ajou University
-
White Papers
FAWNSort: Energy-efficient Sorting of 10GB
Jun 2010
In this paper, the authors describe the submission for the 2010 10GB JouleSort competition. The system consists of a machine with a low-power server processor and five flash drives, sorting the...
Provided by Carnegie Mellon University
-
White Papers
Self-Repairing Homomorphic Codes for Distributed Storage Systems
Jul 2010
Erasure codes provide a storage efficient alternative to replication based redundancy in (networked) storage systems. They however entail high communication overhead for maintenance, when some of...
Provided by Nanyang Technological University
-
White Papers
Extensible Component Based Architecture for FLASH, a Massively Parallel, Multiphysics Simulation Code
Jul 2009
FLASH is a publicly available high performance application code which has evolved into a modular, extensible software system from a collection of unconnected legacy codes. FLASH has been...
Provided by University of Chicago
-
White Papers
JAM: Justifiable Allocation of Memory With Efficient Mounting and Fast Crash Recovery for NAND Flash Memory File Systems
Oct 2010
Flash memory is small size, lightweight, shock-resistant, non-volatile, and consumes little power. Flash memory therefore shows promise for use in storage devices for consumer electronics, mobile...
Provided by Ajou University
-
White Papers
EXCES: EXternal Caching in Energy Saving Storage Systems Luis
Jan 2008
Power consumption within the disk-based storage sub system forms a substantial portion of the overall energy footprint in commodity systems. Researchers have proposed external caching on a...
Provided by Florida International University
-
White Papers
Feasibility, Efficiency, and Effectiveness of Self-Optimizing Storage Systems
Jan 2011
Recent work has proposed making intelligent use of data access patterns for building self-optimizing storage systems. However, despite the continued increase in the CPU-I/O performance gap, such...
Provided by Carnegie Mellon University
-
White Papers
On the Issues of Building Information Warehouses
Jan 2010
While performing knowledge-intensive tasks of professional nature, the knowledge workers need to access and process large volume of information. Apart from the quantity, they also require that the...
Provided by Infosys Technologies
-
White Papers
Solving the Subset-Sum Problem With a Light-Based Device
Aug 2007
The authors propose a special computational device which uses light rays for solving the subset-sum problem. The device has a graph-like representation and the light is traversing it by following...
Provided by Babes-Bolyai University
-
White Papers
Solving the Hamiltonian Path Problem With a Light-Based Computer
Aug 2007
In this paper the authors suggest the use of light for performing useful computations. Namely, they propose a special computational device which uses light rays for solving the Hamiltonian path...
Provided by Babes-Bolyai University
-
White Papers
Tree-Structured Data Regeneration With Network Coding in Distributed Storage Systems
May 2009
Distributed storage systems, built on peer-to-peer networks, can provide large-scale data storage and high data reliability by redundant schemes, such as replica, erasure codes and linear network...
Provided by Fudan University
-
White Papers
Tree-Structured Data Regeneration in Distributed Storage Systems With Regenerating Codes
Dec 2009
Distributed storage systems provide large-scale reliable data storage by storing a certain degree of redundancy in a decentralized fashion on a group of storage nodes. To recover from data losses...
Provided by Fudan University
-
White Papers
Randomised Buffer Management With Bounded Delay Against Adaptive Adversary
Feb 2011
The authors study the Buffer Management with Bounded Delay problem, introduced by Kesselman et al., or, in the standard scheduling terminology, the problem of online scheduling of unit jobs to...
Provided by University of Wroclaw
-
White Papers
InZeit: Efficiently Identifying Insightful Time Points
Aug 2010
Web archives are useful resources to find out about the temporal evolution of persons, organizations, products, or other topics. However, even when advanced text search functionality is available,...
Provided by VLDB Endowment
-
White Papers
A Content-Aware Block Placement Algorithm for Reducing PRAM Storage Bit Writes
Mar 2010
Phase-change Random Access Memory (PRAM) is a promising storage-class memory technology that has the potential to replace flash memory and DRAM in many applications. Because individual cells in a...
Provided by University of Pittsburgh
-
White Papers
Modeling the Relative Fitness of Storage
Jun 2007
Relative fitness is a new black-box approach to modeling the performance of storage devices. In contrast with an absolute model that predicts the performance of a workload on a given storage...
Provided by Association for Computing Machinery
-
White Papers
A Systematic Approach to System State Restoration During Storage Controller Micro-Recovery
Jan 2009
Micro-recovery, or failure recovery at a fine granularity, is a promising approach to improve the recovery time of software for modern storage systems. Instead of stalling the whole system during...
Provided by Georgia Institute of Technology
-
White Papers
Using Utility Functions to Control a Distributed Storage System
May 2008
Provisioning, and later optimizing, a storage system involves an extensive set of trade-offs between system metrics, including purchase cost, performance, reliability, availability, and power....
Provided by Carnegie Mellon University
-
White Papers
On the Possibility of Small, Service-Free Disk-Based Storage Systems
Jan 2008
For many storage providers, the cost of providing service calls exceeds the costs of the hardware being serviced. In this paper, the authors show that zero maintenance, small disk arrays are too...
Provided by Santa Clara University
-
White Papers
Increased Reliability With SSPiRAL Data Layouts
Feb 2008
The authors evaluate the reliability of storage system schemes consisting of an equal numbers of data disks and parity disks where each parity disk contains the eXclusive OR (XOR) of two or three...
Provided by Institute of Electrical and Electronics Engineers
-
White Papers
Outshining Mirrors: MTTDL of Fixed-Order SSPiRAL Layouts
Oct 2007
Complementary trends in hardware and applications are driving an increase in demand for data volume and bandwidth, resulting in an increased risk of data loss and a growing need for improved...
Provided by University of Houston
-
White Papers
Flexible, Wide-Area Storage for Distributed Systems With WheelFS
Mar 2009
WheelFS is a wide-area distributed storage system intended to help multi-site applications share data and gain fault tolerance. WheelFS takes the form of a distributed file system with a familiar...
Provided by New York University
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White Papers
Comparison of Different Fingerprint Compression Techniques
Sep 2010
The important features of wavelet transform and different methods in compression of fingerprint images have been implemented. Image quality is measured objectively using Peak Signal to Noise Ratio...
Provided by AIRCC
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White Papers
Efficient Provenance Storage
Jun 2010
As the world is increasingly networked and digitized, the data the authors store has more and more frequently been chopped, baked, diced and stewed. In consequence, there is an increasing need to...
Provided by Association for Computing Machinery
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White Papers
Positional Delta Trees to Reconcile Updates With Read-Optimized Data Storage
Aug 2008
The authors investigate techniques that marry the high read-only analytical query performance of compressed, replicated column storage ("Read-optimized" databases) with the ability to handle a...
Provided by Centrum Wiskunde & Informatica
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White Papers
Remote Oblivious Storage: Making Oblivious RAM Practical
Mar 2011
Remote storage of data has become an increasingly attractive and advantageous option, especially due to cloud systems. While encryption protects the data, it does not hide the access pattern to...
Provided by Massachusetts Institute of Technology
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White Papers
Information Retrieval in the Semantic-LIFE Personal Digital Memory Framework
Jun 2009
Ever increasing capacities of contemporary storage devices inspire the vision to accumulate (personal) information without the need of deleting old data over a long time-span. Hence the target of...
Provided by Vienna University
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White Papers
Social Network-Aware Disk Management
Nov 2010
Disk access patterns of social networking applications are different from those of traditional applications. However, today's disk layout techniques are not adapted to social networking workloads...
Provided by University of Illinois
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White Papers
Folklore: Implementing Data-Untraceable and Scalable Distributed Storage
Aug 2008
The authors have built and deployed a system called Folklore that implements a new property called data untraceability through a proactive migratory replication protocol in a large-scale...
Provided by University of Illinois
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White Papers
Enforcing Authorization Policies Using Transactional Memory Introspection
Apr 2008
Correct enforcement of authorization policies is a difficult task, especially for multi-threaded software. Even in carefully-reviewed code, unauthorized access may be possible in subtle corner...
Provided by Rutgers University
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White Papers
Efficient Multi-Dimensional Query Processing in Personal Information Management Systems
Apr 2008
The relentless growth in capacity and dropping price of storage are driving an explosion in the amount of information users are collecting and storing in personal information management systems....
Provided by Rutgers University
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White Papers
Are Disks the Dominant Contributor for Storage Failures? A Comprehensive Study of Storage Subsystem Failure Characteristics
Jan 2011
Building reliable storage systems becomes increasingly challenging as the complexity of modern storage systems continues to grow. Understanding storage failure characteristics is crucially...
Provided by University of Illinois at Urbana Champaign
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White Papers
External Double Hashing With Choice
Jan 2011
A novel extension to external double hashing providing significant reduction to both successful and unsuccessful search lengths is presented. The experimental and analytical results demonstrate...
Provided by University of California
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White Papers
Efficient External Table Reordering
Jan 2008
A novel extension to binary-tree table organization suitable for external storage providing successful searches for nearly full tables requiring less than two accesses is presented. This paper...
Provided by Institute of Electrical and Electronics Engineers
