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DTSTAMP:20190719T085745Z
LOCATION:HG D 1.1
DTSTART;TZID=Europe/Stockholm:20190614T140000
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UID:submissions.pasc-conference.org_PASC19_sess160_msa123@linklings.com
SUMMARY:The CERN Tape Archive: Preparing for the Exabyte Storage Era
DESCRIPTION:Minisymposium\nComputer Science and Applied Mathematics, Clima
 te and Weather, Physics, Engineering\n\nThe CERN Tape Archive: Preparing f
 or the Exabyte Storage Era\n\nDavis\n\nThe High Energy Physics experiments
  at CERN generate a deluge of data which must be efficiently archived for 
 later retrieval and analysis. During the first two Runs of the LHC (2009-2
 018), over 250 Pb of physics data was collected and archived to tape. CERN
  is facing two main challenges for archival storage over the next decade. 
 First, the rate of data taking and the total volume of data will increase 
 exponentially due to improvements in the luminosity and availability of th
 e LHC and upgrades to the detectors and data acquisition system. Data arch
 ival is expected to reach 150 Pb/year during Run–3 (2021-2023), incr
 easing to 400 Pb/year during Run–4 (2025-). The integrated total dat
 a on tape will exceed one Exabyte within a few years from now. Second, con
 straints in available computing power and disk capacity will change the wa
 y in which archival storage is used by the experiments. This presentation 
 will describe these challenges and outline the preparations that the CERN 
 IT Storage Group are making to prepare for the Exabyte storage era.
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