PIANC, emphasis in this report is put on the items specif-. ic to the design and construction of berm breakwaters. Details of those issues common to all breakwaters is left. out, i.e. environmental conditions, soil stability, etc.
If you're getting an error message that the scratch disk is full, it usually means you need to clear some space on whatever drive is defined as the scratch disk in Photoshop Preferences, or add additional drives for Photoshop to use as scratch space.
The disk read-and-write head is made using thin film techniques that include materials hard enough to scratch through the protective layers. A head crash can be initiated by a force that puts enough pressure on the platters from the heads to scratch through to the magnetic storage layer.