Belle II experiment can take advantage from Federation technologies to simplify data management. The increasing adoption of HTTP and WebDAV protocol by sites, enable to create lightweight solutions to give an aggregate view of multiple distributed storages. In this work we present a study on the possible usage of the software Dynafed developed by CERN for the creation of a dynamic data federation system. We created a first Dynafed server, hosted in the datacentre in Napoli, and connected with about the 60% of the production storages of Belle II. Then we aggregated all the file systems under a unique HTTP path. Over this infrastructure we performed a set of stress tests, in order to evaluate the impact of federation, the service resilience, and to study the capability of Dynafed to redirect clients properly to the most convenient file replica. The results show good potentialities of the service and suggest further investigation.

A lightweight federation of the Belle II storages through Dynafed

Pardi, S.
Writing – Original Draft Preparation
;
Russo, G.
Writing – Review & Editing
2017

Abstract

Belle II experiment can take advantage from Federation technologies to simplify data management. The increasing adoption of HTTP and WebDAV protocol by sites, enable to create lightweight solutions to give an aggregate view of multiple distributed storages. In this work we present a study on the possible usage of the software Dynafed developed by CERN for the creation of a dynamic data federation system. We created a first Dynafed server, hosted in the datacentre in Napoli, and connected with about the 60% of the production storages of Belle II. Then we aggregated all the file systems under a unique HTTP path. Over this infrastructure we performed a set of stress tests, in order to evaluate the impact of federation, the service resilience, and to study the capability of Dynafed to redirect clients properly to the most convenient file replica. The results show good potentialities of the service and suggest further investigation.
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11588/743487
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