The Log Information tracks each operation as it is performed, and thus makes it possible to review what you are doing to make sure you have things under control.
In the screen shot above, three tape emulators and one physical tape drive were mounted at startup. That means that the tape drive cartridge was mounted and ready, and the emulated tape drive disk files contained valid DDP images and were also mounted.
Then the user copied and verified the second layer of a DDP folder. Notice that it contained only 315,712 sectors, which at 2048 bytes per sector works out to about 616 MB. That's because we use an 8 cm. dual layer project for testing, to save time.
Notice that the DDP Image Layer contained only two files, the DDPID file which is the top-level file in all DDP's. (It is named DDVID.DAT in CMF, but contains the same data), and the MAIN.DAT file. This is because the CONTROL.DAT contains leadin information for the first layer, and is not needed on the second. Also, in CMF 1.0, the main file is usually named IMAGE.DAT.