Why don’t you consider online backups? I think online backup is the right solution to keep your data securely offsite. Having your backup data in the same HDD is a risk against disasters.
We use this online backup service, there are options to schedule automatic backups every day/ week/ month or however you require it to do. All you need to do is select the files, save it as a backup set and schedule it for regular backups.
Bookmarks