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- W4298889795 abstract "MAGIC-I is currently the Imaging Cherenkov Telescope with the worldwide largest reflector currently in operation. The initially achieved low trigger threshold of 60 GeV has been further reduced by means of a novel trigger that allows the telescope to record gamma ray showers down to 25 GeV. The high trigger rate combined with the 2 GHz signal sampling rate results in large data volumes that can reach 1 TByte per night for MAGIC-I and even more with the second MAGIC telescope coming soon into operation. To deal with the large storage requirements of MAGIC-I and MAGIC-II, we have installed the distributed file system GFS and a cluster of computers with concurrent access to the same shared storage units. The system can not only handle a sustained DAQ write rate above 1.2 kHz for MAGIC-I, but also allows other nodes to perform simultaneous concurrent access to the data on the shared storage units. Various simultaneous tasks can be used at any time, in parallel with data taking, including data compression, taping, on-line analysis, calibration and analysis of the data. The system is designed to quickly recover after the failure of one node in the cluster and to be easily extended as more nodes or storage units are required in the future." @default.
- W4298889795 created "2022-10-02" @default.
- W4298889795 creator A5063961079 @default.
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- W4298889795 date "2009-07-06" @default.
- W4298889795 modified "2023-09-26" @default.
- W4298889795 title "A Flexible High Demand Storage System for MAGIC-I and MAGIC-II using GFS" @default.
- W4298889795 doi "https://doi.org/10.48550/arxiv.0907.1003" @default.
- W4298889795 hasPublicationYear "2009" @default.
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