LFC Service Help

This page will collect all the necessary information and advice on how to :

• deploy the LFC in the context of the Service Challenges
• install, configure and run the LFC

Who should install the LFC ?

For Service Challenge 3, it depends on the VOs your site supports :

• Alice : the Tier-0, Tier-1s and Tier-2s involved in SC3 should all install an LFC instance. The LFC will act as a local site catalog : it will only contain the entries stored at the site where it is installed.
• Atlas : the Tier-0, Tier-1s and Tier-2s involved in SC3 should all install an LFC instance. The LFC will act as a local site catalog : it will only contain the entries stored at the site where it is installed.
• CMS : no LFC instance required, but if one is provided it could be used by CMS via POOL. (A site-local catalog is required at all sites - the exact flavour to be agreed with CMS).
• LHCb : only the Tier-0 has to install the LFC (central catalog model). At some point, read-only replicas of the LFC to be deployed at selected Tier-1 sites.

What is the LFC Pilot ?

In order to allow the experiment to gain familiarity with the LFC and to run scalability and performance tests, a pilot has been set up, with the machines hosted at CERN. the machines are:

Experiment	Hostname
ALICE	lfc-alice-test.cern.ch
ATLAS	lfc-atlas-test.cern.ch
CMS	lfc-cms-test.cern.ch
LHCb	lfc-cms-test.cern.ch

Information on migrating data between an EDG RLS Catalog and the LFC is at the LCG GOC Wiki. If you require assistance in migrating data from the existing experiment EDG RLS, please contact hep-service-lfc@cern.ch.

• Steps to follow to include a new VO

LFC installation and configuration

Please refer to the GOC Wiki Page, where you will find the most up-to-date documentation : http://goc.grid.sinica.edu.tw/gocwiki/How_to_set_up_an_LFC_service

Questions about the LFC ?

If you have any question or encounter any problem, please contact : hep-service-lfc@cernNOSPAMPLEASE.ch

-- Main.slemaitr - 23 Jun 2005