Check which is the default BDII on your user interface. To do so, run the following command:
echo $LCG_GFAL_INFOSYS
If your default BDII is not set, you can set it by using the following command:
export LCG_GFAL_INFOSYS lcg-bdii.cern.ch:2170
1 - lcg-infosites --vo voname -[v] -f [site name] [option(s)] [-h| --help] [--is BDII]
2 - list of options: lcg-infosites -h
1 - Using the lcg-infosites command, display the information concerning the RB, CE, SE and LFC for the biomed VO
2 - Display the amount of RAM, the operating system and the processor model of the CEs
3 - Find which is the closest SE for each CE
4 - Display the information of the CE clrlcgce01.in2p3.fr for the VOs biomed and auvergrid.
What are the differences ? How can you explain theses differences ?
1 - lcg-info --list-ce [--bdii bdii] [--vo vo] [--sed] [--debug] [--query query] [--attrs list]
2 - lcg-info --list-se [--bdii bdii] [--vo vo] [--sed] [--debug] [--query query] [--attrs list]
3 - lcg-info --list-service [--bdii bdii] [--vo vo] [--sed] [--debug] [--query query] [--attrs list]
4 - lcg-info --list-site [--bdii bdii] [--vo vo] [--sed] [--debug] [--query query] [--attrs list]
5 - lcg-info --list-attrs
5 - lcg-info --help
1 - Display the list of supported attributes of this command
2 - Run the following command and interpret the output:
lcg-info --list-se --query 'SEArch=disk' --attrs 'SEName,SEArch' --vo biomed
3 - Display the number of running jobs and free CPUs of all the CEs that have an Athlon CPU
4 - Display the list of close CEs for all the SEs of the biomed VO
1 - Run the following command and interpret the output:
ldapsearch -x -h lcgbdii02.gridpp.rl.ac.uk -p 2170 -b o=grid '(&(objectclass=GlueSite) (GlueSiteName=ral*))' GlueSiteWeb GlueSiteLatitude GlueSiteLongitude
2 - With the help of the previous example, display the mail of the administrator, the description and the web site of the site called AUVERGRID
1 - Run the following command and interpret the output:
ldapsearch -x -LLL -H ldap://lxn1187.cern.ch:2170 -b "o=grid" 'objectclass=GlueCESEBind' GlueCESEBindCEUniqueID GlueCESEBindSEUniqueID
2 - With the help of the previous example, display the number of free CPUs of all the CEs