Some files or data maybe lost; it could be by accidental deletion, virus or computer crash.If it happens it will be great problem and a disaster. That is data backup solutions for your files is always a best solution in this problem. In today’s technology there are a lot of storage media available in the market that you can choose from. Such as hard disk or external hard disk, magnetic tape,USB flash card and SD card among others. Each have their own advantages and the more memory or space you have the more it costs you. One more backup solution that is portable easy and convenient is the online back up. You manage your own file online and its like having a backup disk drive that is safe and reliable.