sphere has some space (currently 10GB available) so people can temporarily
store files for a day.  The directory /scratch/today can be used for this
storage.  It is recommended that users create their own directories
inside /scratch/today (for example "mkdir /scratch/today/joe") and put their
temporary files there.  Every day, just after midnight, all the files and
directories in /scratch/today will be moved to /scratch/yesterday and the
previous day's version of /scratch/yesterday will be removed.  Files in these
directories are NOT backed up and are NOT recoverable; do NOT store anything
important in these directories.

Do NOT use any system directories (such as /tmp or /var/tmp) for file storage.
Use only your own home directory (and subdirectories of that) or the space
in /scratch/today for storing your files.  Files in system directories may be
removed at any time.


[Last updated on March 13, 2008]