from the picture ,i can see the new hard drive is totally full, i think maybe the way of your backup is wrong, so it is advisable to you see incremental backup, full backup and differential backup. as i know full backup mainly has two disadvantages. On one hand, it would cost more time. On the other hand, the image file of full backup requires more storage space. There isn't any way to remove the reduplicative data but to delete the image file of the last full backup. so you can choice differential or incremental backup.