CERN Accelerating science

Talk
Title	Tiered Storage For LHC
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Author(s)	Yang, Wei (speaker) (SLAC National Accelerator Laboratory (US)) ; Hanushevsky, Andrew (speaker) (STANFORD LINEAR ACCELERATOR CENTER)
Corporate author(s)	CERN. Geneva
Imprint	2012-05-22. - Streaming video, 00:16:30:00.
Series	(Conferences) (Computing in High Energy and Nuclear Physics (CHEP) 2012)
Lecture note	on 2012-05-22T13:55:00
Subject category	Conferences
Abstract	For more than a year, the ATLAS Western Tier 2 (WT2) at SLAC National Accelerator has been successfully operating a two tiered storage system based on Xrootd's flexible cross-cluster data placement framework, the File Residency Manager. The architecture allows WT2 to provide both, high performance storage at the higher tier to ATLAS analysis jobs, as well as large, low cost disk capacity at the lower tier. Data automatically moves between the two storage tiers based on the needs of analysis jobs and is completely transparent to the jobs.
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Submitted by	jd@bnl.gov