MANAGEMENT METHODS IN SLA-AWARE DISTRIBUTED STORAGE SYSTEMS | Zendy

Darin Nikołow | Zendy; Renata Słota | Zendy; Danilo Lakovic | Zendy; Paweł Winiarczyk | Zendy; Marek Pogoda | Zendy; Jacek Kitowski | Zendy

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MANAGEMENT METHODS IN SLA-AWARE DISTRIBUTED STORAGE SYSTEMS

Author(s) -

Darin Nikołow,

Renata Słota,

Danilo Lakovic,

Paweł Winiarczyk,

Marek Pogoda,

Jacek Kitowski

Publication year - 2012

Publication title -

computer science

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.145

H-Index - 5

eISSN - 2300-7036

pISSN - 1508-2806

DOI - 10.7494/csci.2012.13.3.35

Subject(s) - computer science , reservation , service level agreement , quality of service , key (lock) , database , distributed computing , set (abstract data type) , service (business) , resource (disambiguation) , computer data storage , computer network , computer security , operating system , economy , economics , programming language

Traditional data storage systems provide access to user’s data on the “besteffort” basis. While this paradigm is sufficient in many use cases it becomesan obstacle for applications with Quality of Service (QoS) constraints. ServiceLevel Agreement (SLA) is a part of the contract agreed between the serviceprovider and the client and contains a set of well defined QoS requirementsregarding the provided service and the penalties applied in case of violations.In the paper we propose a set of SLA parameters and QoS metrics relevantto data storage processes and the management methods necessary for avoidingSLA violations. A key assumption in the proposed approach is that the underlyingdistributed storage system does not provide functionality for resource orbandwidth reservation for a given client request

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