datadir.README

In general, "datadir" is a directory that gets rolled over for each night,
and should be carefully left alone.

Notice that for testing, tom sometimes makes datadir a link to an old
directory (such as datadir_20110727).  But if he does, he doggone well
better replace the link with the real directory before observing begins
for the night.

The datadir directory in Tom's private copy on cholla
is a symbolic link to datadir_mmddyyy

If it is desired to do post-mortem on some specific day,
the thing to do is, the files can be found in /mmt/wfsdat
where they are placed by our daily wfs cron script:

On hacksaw, a daily cron script
(see /etc/cron.daily/0wfsdat_rotate.sh)
does an rsync of /mmt/shwfs/datadir
into a directory in /mmt/wfsdat
(the directory will be named yyyymmdd)

Note that since this rsync is done the morning after,
the dataset will get named for the day following the
night of observing (exactly correct for morning data).