Difference: Tier3VMwareVM (18 vs. 19)

Revision 192008-09-20 - AldenStradling

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META TOPICPARENT name="AldenStradling"

Implementing an ATLAS Tier3 Virtual Machine

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  • This interest in shared filesystems (such as hgfs, NFS and xrootd) arises from a desire to be able to store both datasets and ATLAS software installations once and give access to both the host and several VMs as necessary, with the most performant access possible.


  1. Download the files located at http://www-hep.uta.edu/~stradlin/Tier3VM - both Tier3.1.tbz.
  1. Download the file located at http://www-hep.uta.edu/~stradlin/Tier3VM/Tier3.1.tbz ( Tier3.1.tbz). You can also download Atlas.tbz Atkas.tbz if you intend to install Athena (see below).
  1. Untar the virtual machine (tar -xjf Tier3.1.tbz) and place it somewhere on your boot volume.
  2. In the VM Settings (varies for different platforms), set a Shared Folder to point to your /DataShare directory, if it has not happened automatically.
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  Once this is done, Athena is in place. Run the scripts in
to set it up and make it active.
Updating Athena is simple, and does not require a full separate copy of all redundant files. * Go to /Atlas/pacman-3.25. Type source setup.sh, then go to the /Atlas/Athena directory. Run the command pacman -allow tar-overwrite -get am-BNL: where would be the Athena version you want.
Grid Setup
Your Grid client is already in place, but may need to update its CRLs. Run:
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