Quality of a defragmentation

After several attempts to execute a defragmentation there are "holes"

c6cadce9cf55t.jpg

After several attempts to execute a defragmentation there are "holes"

c6cadce9cf55t.jpg

What OS are you running?

Also, have you altered defraggler settings to move large files to the end of the disk, or altered its default settings?

Do you have programs that backup/run background jobs WHILE defraggler is running?

Thanks!