Dynamic QoS-aware data replication in grid environments based on data ""importance""

Andronikou, V; Mamouras, K; Tserpes, K; Kyriazis, D; Varvarigou, T

dc.contributor.author	Andronikou, V	en
dc.contributor.author	Mamouras, K	en
dc.contributor.author	Tserpes, K	en
dc.contributor.author	Kyriazis, D	en
dc.contributor.author	Varvarigou, T	en
dc.date.accessioned	2014-03-01T02:08:42Z
dc.date.available	2014-03-01T02:08:42Z
dc.date.issued	2012	en
dc.identifier.issn	0167739X	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/29710
dc.subject	Data replication	en
dc.subject	Grid computing	en
dc.subject	Quality of service	en
dc.subject.other	Application capability	en
dc.subject.other	Data Grid	en
dc.subject.other	Data replication	en
dc.subject.other	File replication algorithms	en
dc.subject.other	Grid environments	en
dc.subject.other	Replica consistency	en
dc.subject.other	Replica creation	en
dc.subject.other	Tolerance approach	en
dc.subject.other	Fault tolerance	en
dc.subject.other	Quality control	en
dc.subject.other	Quality of service	en
dc.subject.other	Grid computing	en
dc.title	Dynamic QoS-aware data replication in grid environments based on data ""importance""	en
heal.type	journalArticle	en
heal.identifier.primary	10.1016/j.future.2011.02.003	en
heal.identifier.secondary	http://dx.doi.org/10.1016/j.future.2011.02.003	en
heal.publicationDate	2012	en
heal.abstract	Data replication comprises a standard fault tolerance approach for systemsespecially large-scale onesthat store and provide data over wide geographical and administrative areas. The major topics that the task of data replication covers include the replica creation, placement, relocation and retirement, replica consistency and replica access. In a business context a number of constraints exists which are set by the infrastructure, network and application capabilities in combination with the Quality of Service (QoS) requirements that hinder the effectiveness of data replication schemes. In this paper, we examine how this combination affects the replication lifecycle in Data Grids and we introduce a set of interoperable novel file replication algorithms that take into account the infrastructural constraints as well as the 'importance' of the data. The latter is approximated through a multi-parametric factor that encapsulates a set of data-specific parameters, such as popularity and content significance. © 2011 Elsevier B.V. All rights reserved.	en
heal.journalName	Future Generation Computer Systems	en
dc.identifier.doi	10.1016/j.future.2011.02.003	en
dc.identifier.volume	28	en
dc.identifier.issue	3	en
dc.identifier.spage	544	en
dc.identifier.epage	553	en