CMS collaboration
Environment Condition CMS CERN-LHC
Condition database includes non-event-related information (Alignment, Calibration, Temperature, etc.) and parameters for simulation/reconstruction/analysis software.
These files are needed when running a CMSSW job on the open data environment (VM or container), and they are available in the /cvmfs/cms-opendata-conddb.cern.ch file system. They are automatically read from /cvmfs/cms-opendata-conddb.cern.ch/FT53_V21A_AN6_FULL runtime.
FT53_V21A_AN6_FULL is for the full event range for 2012 and can be used for RunA, RunB, RunC and RunD 2012 collision data. Databases for limited event ranges are also available under /cvmfs/cms-opendata-conddb.cern.ch (FT53_V21A_AN6 is for the event range of RunB and FT53_V21A_AN6_RUNC for the event range of RunC).
See further information in the guide to CMS condition database.
For 2012 CMS simulated datasets see:
If you are using the CMS Virtual Machine image or the CMS container image environments, then the condition data files will be served automatically from /cvmfs/cms-opendata-conddb.cern.ch/
or from a file server at runtime, and therefore you do not need to download these files. If you need to have them locally, you can download them from here.
The open data are released under the Creative Commons CC0 waiver. Neither the experiment(s) ( CMS ) nor CERN endorse any works, scientific or otherwise, produced using these data. All releases will have a unique DOI that you are requested to cite in any applications or publications.