How do I format my. How do I format my one touch II 200Gb backup drive - I am worried that the

Question

How do I format my one touch II 200Gb backup drive - I am worried that the restore points will be defective since the power went out a few times on the drive while backing up. So i'm thinking of formatting and then doing a new backup. I am currently doing a duplicate backup - will all new restore points be from the new duplicate backup?