Indications of Disk Space issues

The following are all scenarios that could indicate a lack of available disk space:

• Script unexpectedly fails in a place where it normally works
• Dragging a dataset from a the dataset tab into the hotbar creates a null dataset with count ..., but doing OpenCopy gives a valid dataset view that can be calculated.
• Attempting to view records in a table gives "View Failed - Incomplete Table"
• Any of the following when trying to build a link:
  • Join does not verify
  • failed to build long key join
  • failed to create join
  • cannot add join
• Any of the following error messages:
  • bad file in VarStringFieldFile-field not built