Why do you need a dual external drive?
As I inevitably seem to gather more information by way of data, mp3 music, video and photo digital files, not only do I need a larger external hard drive but also a backup for my existing external hard drive. The reason for this is that my internal hard drive is nearing capacity and whereby my original external drive was intended as a backup to this, it is now being used to store fresh information. My worry now is if this drive fails, data that is not on my internal drive will be lost. The obvious alternative is to buy a second maybe larger external drive to use for this purpose. However my one thought on this is do any manufacturers offer a “dual” external hard drive that would contain two separate discs so should one fail, then your data would still remain safe? As it turns manufacturers have identified this vulnerability and there are indeed dual drives now available.
One such drive is the Western Digital 1TB My Book Mirror Edition dual-drive storage system. With it’s RAID based system and software that automatically backs up your data, you are safe in the knowledge that should one drive fail then you have the other disk available to access your files. It works by “mirroring” or duplicating the data automatically so the disks have identical files and information on each. Each time you save a file it is mirrored on the second disk drive.
Another one to consider with similar features is the Verbatim 47528 2TB RAID (2 bay) 3.5-inch External Hard Drive. It has user selectable RAID options to enable the drive to work as one large disk or two separate mirror disks.
