The CDF Run II disk inventory manager

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The Collider Detector at Fermilab (CDF) experiment records and analyses proton-antiproton interactions at a center-of-mass energy of 2 TeV. Run II of the Fermilab Tevatron started in April of this year. The duration of the run is expected to be over two years. One of the main data handling strategies of CDF for Run II is to hide all tape access from the user and to facilitate sharing of data and thus disk space. A disk inventory manager was designed and developed over the past years to keep track of the data on disk, to coordinate user access to the ... continued below

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79 Kilobytes pages

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Lammel, Paul Hubbard and Stephan November 2, 2001.

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Description

The Collider Detector at Fermilab (CDF) experiment records and analyses proton-antiproton interactions at a center-of-mass energy of 2 TeV. Run II of the Fermilab Tevatron started in April of this year. The duration of the run is expected to be over two years. One of the main data handling strategies of CDF for Run II is to hide all tape access from the user and to facilitate sharing of data and thus disk space. A disk inventory manager was designed and developed over the past years to keep track of the data on disk, to coordinate user access to the data, and to stage data back from tape to disk as needed. The CDF Run II disk inventory manager consists of a server process, a user and administrator command line interfaces, and a library with the routines of the client API. Data are managed in filesets which are groups of one or more files. The system keeps track of user access to the filesets and attempts to keep frequently accessed data on disk. Data that are not on disk are automatically staged back from tape as needed. For CDF the main staging method is based on the mt-tools package as tapes are written according to the ANSI standard.

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79 Kilobytes pages

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  • CHEP 2001, Beijing (CN), 09/03/2001--09/07/2001

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  • Report No.: FERMILAB-Conf-01/301-E
  • Grant Number: AC02-76CH03000
  • Office of Scientific & Technical Information Report Number: 788246
  • Archival Resource Key: ark:/67531/metadc718710

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Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

Office of Scientific and Technical Information (OSTI) is the Department of Energy (DOE) office that collects, preserves, and disseminates DOE-sponsored research and development (R&D) results that are the outcomes of R&D projects or other funded activities at DOE labs and facilities nationwide and grantees at universities and other institutions.

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  • November 2, 2001

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  • Sept. 29, 2015, 5:31 a.m.

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  • April 1, 2016, 3:43 p.m.

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Lammel, Paul Hubbard and Stephan. The CDF Run II disk inventory manager, article, November 2, 2001; Batavia, Illinois. (digital.library.unt.edu/ark:/67531/metadc718710/: accessed April 20, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.