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B2SAFE adoption in the EPOS community. Claudio Cacciari ( Cineca ), c.cacciari@cineca.it 2 nd EUDAT Conference. Date : 29 October 2013. The European Plate Observing System ( EPOS ) is the integrated solid Earth Sciences research infrastructure. approved by
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B2SAFE adoptionin the EPOS community Claudio Cacciari(Cineca), c.cacciari@cineca.it 2nd EUDAT Conference Date: 29 October 2013
The European Plate Observing System (EPOS) is the integrated solid Earth Sciences research infrastructure approved by the European Strategy Forum on Research Infrastructures (ESFRI). EPOS is a long-term integration plan of national existing Research Infrastructures (RIs). Typical 3-sensor seismic station (acc,vel,gps) ~ 300 seismicstations in Italy ~ 10³ in the world And one of the RIs is the Italian Institute for Geophysics and Volcanology (INGV)
Allthisstationstransmits data via satellite links, internet, wirelines, radio modems, opticalfibers. Continuous data seriesrepresenting the threecomponentsofground velocity or acceleration, sampledtipically at 100 sps INGV receives the data at its data center in Rome INGV receivesaround 15 GB/day 5 TB/year
PID registry The replicationof the wholearchivehastaken 3 months Eachdigitalobjectingestedby CINECA hasbeenregistered, assigningtoit a PersistentIdentifier (PID). So far wehaveabout 7100000 PID The chosendoorfor the EUDAT CDI is the CINECA node, placed in Bologna, Italy The INGV data archive, so far, amountto 28,6 TB 7500000 files Using the iRODSirsynctool, running multiple irsyncprocessesto aggregate bandwidth, sinceeachprocessreachesanaverageof 16 Mbits The connection between INGV and CINECA is via internet and has a theoreticalbandwidthof 100 Mbits The PIDs are registeredinto the PID registry, whichishosted at SURFsara and based on the EPIC service. During the periodicsynchronizationprocess, we create about 3000 PIDs/day In this first phase the CINECA nodeactsas the mainarchivefor the data (master archive) In the nextphase, the community archivewillregisterdirectlytheir data becoming the master Howto replicate the whole INGV data archiveto the EUDAT infrastructure? EUDAT Master archive First replicationarchive
Data streamsreceivedby INGV are stored in a temporary area, wherethey are consolidatedover the followingfewdays Data are thenmovedto the long termarchive A periodicsyncronizationprocesskeepsalignedboth the cache and the archive The archiveissyncevery 24 hours The cache issyncevery 60 minutes Archive Archive Real-time cache Real-time cache