Current version: CRAB_1_0_2
CRAB webpage

• How to install CRAB_1_0_x on a lxplus account:
• source /afs/cern.ch/cms/LCG/LCG-2/UI/cms_ui_env.csh
• source $CMS_PATH/ccs/wm/scripts/Crab/crab.csh
• edit crab.cfg
• eval `scram runtime -csh`
• crab.py -create all -submit all
• to check the jobs status: crab.py -status
• to get the jobs outputs: crab.py -getoutput
• to resend aborted jobs: crab.py -resubmit
• to cancel jobs: crab.py -kill [range]
• to have informations on crashed jobs: crab.py -postMortem [range]
If you want to store data on CASTOR:
• Perform the command rfchmod 777 /castor/cern.ch/user/... in order to give any user the write permission on your destination directory
• uncomment copy_data = 1
• (comment return_data = 1 if you don't want a local copy of the output)
• uncomment storage_element = castorgrid.cern.ch
• uncomment storage_path = /castor/cern.ch/user/... with the right path

How to know what are the ORCA versions on the worker node: look here or type lcg-info --vo cms --list-ce --attr Tag

CRAB FAQ

Before using CRAB, you need a GRID certificate; follow these instructions.
If you already have a certificate (as a .p12 file) install it on the UI (e.g. lxplus.cern.ch) this way:

• mkdir ~/.globus
• openssl pkcs12 -nocerts -in mycert.p12 -out ~/.globus/userkey.pem
• openssl pkcs12 -clcerts -nokeys -in mycert.p12 -out ~/.globus/usercert.pem
• chmod 0400 ~/.globus/userkey.pem
• chmod 0600 ~/.globus/usercert.pem