1. A dispersed storage device for use within a dispersed storage network, comprising: a processing module operable to: determine whether to add a new generation for a vault, the vault identifying at least one user having data to be stored; and when the new generation is to be added to the vault: assign a vault generation identifier to the new generation; assign a virtual address range of a virtual memory associated with the dispersed storage network to the new generation; and map the virtual address range to a physical memory for storage of the data therein.