Fermilab Computing Division

CS Document 2687-v1

CDF and D0 Tape Usage

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Document type:
Technical Note
Submitted by:
Rob Kutschke
Updated by:
Rob Kutschke
Document Created:
17 May 2008, 00:14
Contents Revised:
17 May 2008, 00:15
Metadata Revised:
17 May 2008, 00:15
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17 May 2008, 00:14
This document describes a very rough model of how CDF and D0 will use tapes in the next few years. It gives the background to the projections that are summarized on sheet ``Tape Volume'' of the spreadsheet in CD-doc-2686. It is not a first principles model. Instead it averages over past usage, over a long enough interval to average out short term variations in usage patterns.
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