As discussed at a meeting on Tuesday August 7 we agreed to use the following directory structure in xrootd. All directories are prefixed with root://glast-rdr.slac.stanford.edu//glast/

Directory

Tape Group

Usage

/mc

MC

MC production

/I&T

I&T

Archive of old I&T data

/level0

data

Level 0 data products

/beamtest/mc

beamtest

Beam test MC data

/beamtest/data

beamtest

Beam test data archive

/fcopy

data

Fast copy data (tar files)

/level1/monitoring

data

level1 data monitoring files

/level1/dataproducts

data

level1 data products

/level1/dataproducts/calib

data

level1 calibration files

/lci

data

 

/level2/ASP

data

ASP data products

It was assumed that xrootd will be used primarily for fits and root files. Miscellaneous files such as log files, reports, and probably ASP data products (which are very small) will continue to live in NFS. One outstanding issue is how such files could be archived.

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