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For the Fermi servers see: NFS/GPFS and Xroot Disk Allocations

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1. The first step is a cron job that creates the auth-file from the fermi users list and the list of users in the science groups.
   The program ScaAuthfileUpdate creates the auth-file and runs as a trscrontab (as wilko).
2. Each data server runs a cron job that  updates the local auth-file that xrootd uses if the master file (from step 1) has been updated.

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Tasks

• Purge Old Recon Files