In /nbsnas/var/dump you can delete the oldest file beginning with "support_materials" by opening a putty session to the control station and cd /nbsnas/var/dump, issue an ls -l command to perform a long listing of the files in that directory where you will see the dates on the support_materials files.  You can delete the older support_materials files.  I would expect this to stop the alerts.  When upgrading to 6.0, and if the directory is still full, the pre-upgrade check process may flag this as needing attention prior to performing the upgrade.  So either way you benefit from the clean up.  If you have any reservations about the file deletion, please open a service request with EMC Support and we would be more than happy to assist in resolving this for you.
Hi      I get an error every hour, and ignoring it hasnt made it go away!  if anybody could explain what it is and how I can get rid of it it I would be grateful..   
somethings filling up but what?