Authors:
Christian Baun
1
;
Marcel Kunze
2
;
Denis Schwab
3
and
Tobias Kurze
2
Affiliations:
1
SAP AG, Germany
;
2
Karlsruher Institut für Technologie, Germany
;
3
Hochschule Karlsruhe, Germany
Keyword(s):
Cloud Computing, Cloud Federation, Storage Services, Availability.
Related
Ontology
Subjects/Areas/Topics:
Cloud Application Architectures
;
Cloud Computing
;
Cloud Computing Enabling Technology
;
Cloud Deployment Models: Public/Private/Hybrid Cloud
;
Development Methods for Cloud Applications
;
Fundamentals
;
Platforms and Applications
;
Xaas
Abstract:
Cloud storage services such as the Amazon Simple Storage Service (S3) are widely accepted and are reaching an ever-expanding range of customers. Especially services providing S3-compatible interfaces enjoy great popularity due to S3’s simplistic, yet powerful approach to store and retrieve data via web protocols. While cloud storage services present a convenient tool, they also might turn into a risk for your data. Apart from planned service outages which may or may not be covered by Service Level Agreements (SLA), there is no guarantee that a service provider might go out of business. One might also imagine that data could be destroyed, lost or altered due to unplanned outages or physical disaster. One possibility to improve availability and also data robustness is to consume services of more than one cloud storage provider simultaneously and to establish a federated, redundant cloud storage system. Octopus cloud storage implements such a federated system realizing the concept of a
Redundant Array of Independent Services (RAIS).
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