Western Digital intros 4TB external hard drive

Following the introduction of 2TB hard drives earlier this year, Western Digital has expanded its My Book line of external storage solutions with a new model that pairs two such drives together in a RAID 0 stripe for a total 4TB of space. The My Book Studio Edition II comes pre-formatted in HFS+ for Mac computers and is touted as particularly useful for large Time Machine backups, video and photo-editing work.

Read the whole story (http://www.techspot.com/news/35016-western-digital-intros-4tb-external-hard-drive.html)

Single disk replacement in RAID 0?
Right....

Someone would have to be insane to use a RAID-0 array drive pair for backup of any kind. Either the report is incorrect or Western Digital has lost its corporate mind.

It comes with a RAID 0 configuration by default but the drives can also be mirrored in RAID 1.