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.
HDDs are the slowest form of storage, but using one as a scratch disk can still provide performance benefits. Using a HDD as a scratch disk means that your read/write bandwidth wont be used by your apps and OS, the files you are using will be read at maximum speed when needed.