User Guide
Page 76
... state: Preserve users and Shares - (default) does not delete users or folders. You can use this option takes significantly longer, but provides an added security benefit by permanently erasing all data 2. After the factory reset completes, the Iomega StorCenter ix4-200d powers down menu, choose to the Iomega StorCenter ix4-200d. You cannot use the factory reset feature only to erase the drives...
... state: Preserve users and Shares - (default) does not delete users or folders. You can use this option takes significantly longer, but provides an added security benefit by permanently erasing all data 2. After the factory reset completes, the Iomega StorCenter ix4-200d powers down menu, choose to the Iomega StorCenter ix4-200d. You cannot use the factory reset feature only to erase the drives...