The default SAS working directory has been set to /var/tmp on the Katana Head node and local scratch on compute nodes.
Katana was unavailable from just before 10pm on 26/1/2015 until about 10:30am on 27/1/2015 due to a networking issue. Please check all of your jobs.
If you use SAS then you should have a look at out SAS page for information about how to specify the SAS working directory so you won't run out of space.
Have you got some jobs you want to run? Now is the perfect time to use Katana as there are lots of nodes free.