I am looking for a fully-automated, bare-metal, incremental backup to NAS solution for 10+ computers running Windows 7 Professional. (None of the computers I'm backing up host server or database applications.) Right now the best option looks like Windows 7's native backup utility. I'm not sure if that can provide bare-metal backups to a NAS. From what I understand, Windows VSS requires direct access to the backup medium.
Is it possible to write bare-metal backups of Windows 7 machines to a shared NAS using Windows 7's native backup utility? If not, is it possible to create full-volume backups of Windows 7 machines by storing them on a NAS connected via iSCSI to a server running SBS 2011 Essentials?