Challenges for LSST scale data sets
  The Large Synoptic Survey Telescope (LSST) simulator being built by Andy Connolly and collaborators is an impressive undertaking and should make working with LSST in the beginning stages far more easy than it was initially with the Sloan Digital Sky Survey. However, I would like to focus on an equally important problem that has not yet been discussed here, but in the coming years the community will need to address -- can we deal with the flood of data from LSST and will we need to rethink the way we work? 
M.J. Way
astro-ph.IM