The Helium scratch file system was put into read-only mode today (06/11/2012) at around 12:00. This is in preparation for reconfiguration of the scratch file system. This is necessary to mitigate the problems that we have encountered recently with handling IO.
June 11, 2012: /scratch will be changed to read only. No new data can be created on this volume. Please redirect jobs to /nfsscratch. If you have large scale I/O needs that are not working on this volume please contact us as we have another filesystem in preliminary testing that may provide an alternate solution.