RALnonLHCCVMFS

CernVM-FS Stratum-0 for non-LHC VOs

Note: Old page (mainly related to gridpp.ac.uk CernVM-FS domain) can be found here.

RAL Tier-1 is currently hosting CernVM-FS Stratum-0 repositories for 14 non-LHC VOs (auger, biomed, cernatschool.org, glast.org, hone, hyperk.org, km3net.org, mice, na62.vo.gridpp.ac.uk, pheno, phys.vo.ibergrid.eu, snoplus.snolab.ca, t2k.org, enmr.eu).

The Stratum-0 v2.1 repositories are replicated by dedicated EGI CernVM-FS Stratum-1 servers located at RAL, NIKHEF, ASGC and TRIUMF.

At the moment (1 Nov 2014) the repositories hosted at RAL are advertised under two identical CernVM-FS spaces i.e. /cvmfs/<repo_name>.gridpp.ac.uk and /cvmfs/<repo_name>.egi.eu. Similarly the Stratum-1 services (except TRIUMF) are replicating both gridpp.ac.uk and egi.eu domains. The plan is to retire the gridpp.ac.uk domain by very early 2015.

The following instructions will refer to configuration under egi.eu CernVM-FS domain.

Setting up a site to access small VOs CernVM-FS repositories located at RAL

Assuming that your site is already supporting CernVM-FS (client v2.1.X) for LHC VOs, one only needs to update / install the cvmfs-keys package to the version 1.5-1 ([1]) on the worker nodes. This package adds the public keys and Stratum-1 server addresses for the egi.eu and opensciencegrid.org domains (no changes for the *.cern.ch repositories).

In addition, one must specify in /etc/cvmfs/default.local the names of the local site squids:

CVMFS_HTTP_PROXY="http://first.squid.domain:3128;http://second.squid.domain:3128"

The last requirement is that the site local squid(s) are configured to use the Stratum-1 servers at RAL, NIKHEF, ASGC and TRIUMF (see /etc/cvmfs/domain.d/egi.eu.conf for the server names).

Also do not forget to define the following environment variables on the batch farm:

Note: you need to define the following variables only if your site supports the specific VO.

- for auger users/jobs

VO_AUGER_SW_DIR=/cvmfs/auger.egi.eu

- for biomed users/jobs

VO_BIOMED_SW_DIR=/cvmfs/biomed.egi.eu

- for cernatschool.org users/jobs

VO_CERNATSCHOOL_ORG_SW_DIR=/cvmfs/cernatschool.egi.eu

- for glast.org users/jobs

VO_GLAST_ORG_SW_DIR=/cvmfs/glast.egi.eu

- for hyperk.org users/jobs

VO_HYPERK_ORG_SW_DIR=/cvmfs/hyperk.egi.eu

- for km3net.org users/jobs

VO_KM3NET_ORG_SW_DIR=/cvmfs/km3net.egi.eu

- for mice users/jobs

VO_MICE_SW_DIR=/cvmfs/mice.egi.eu

- for na62 users/jobs

VO_NA62_VO_GRIDPP_AC_UK_SW_DIR=/cvmfs/na62.egi.eu

- for pheno users/jobs

VO_PHENO_SW_DIR=/cvmfs/pheno.egi.eu

- for phys.vo.ibergrid.eu users/jobs

VO_PHYS_VO_IBERGRID_EU_SW_DIR=/cvmfs/phys-ibergrid.egi.eu

- for snoplus.snolab.ca users/jobs

VO_SNOPLUS_SNOLAB_CA_SW_DIR=/cvmfs/snoplus.egi.eu

- for t2k.org users/jobs

VO_T2K_ORG_SW_DIR=/cvmfs/t2k.egi.eu

- for enmr.eu users/jobs

VO_ENMR_EU_SW_DIR=/cvmfs/wenmr.egi.eu