Network Inventory allows you to collect information on the physical drives available on any Machine. To get a list of physical drives first of all check the Physical Drives option on the Settings tab under the Hardware Information Scan Options. Then select the Machines you want to retrieve a list of physical drives for and choose Update Selected option from the drop-down of the Update button located on the tool bar above the Machine Tree. As soon as the update process completes you are about to see the physical drives list for the Machine by selecting its Physical Drives child node in the Machine Tree. Pic 1
You can add a physical drive to this list manually, remove the physical drive from this list, edit each drive info, export this list to any format or create a report containing this information.