Avionics disk is handled internally by the storage device. For some classes of device, such as ESDI or floppy, the encoding must be implemented in the new storage device's firmware. This is a complex operation that can only be achieved by reverse engineering the particular implementation, including a detailed low-level examination of the format written to the media, which sometimes varies across the surface. As mentioned, the host might be expecting to see certain data present to indicate a new drive has been fitted, or it might expect to see the same data as before. The first scenario is a simple formatting exercise. Data duplication though requires access to the drive in the host. Again, great care must be taken. A solid-state replacement can be created for virtually any SCSI-based drive that was in use in the 1980s to early 2000s, irrespective of how the OEMs of the host and drive might have collaboA NATO E-3A Airborne Warning and Control System (AWACS) aircraft sits on the tarmac at Siauliai Air Base in Lithuania. NATO is in the process of replacing the removable media assemblies in its AWACS aircraft fleet that use Seagate HDDs that are more than 20 years old. (Image: NATO) Aerospace & Defense Technology, February 2025 mobilityengineeringtech.com 7http://info.hotims.com/87801-825 http://info.hotims.com/87801-782 http://info.hotims.com/87801-824 http://info.hotims.com/87801-826 http://info.hotims.com/87801-827 http://info.hotims.com/87801-828 http://info.hotims.com/87801-829 http://info.hotims.com/87801-830 http://info.hotims.com/87801-833 http://info.hotims.com/87801-831 http://info.hotims.com/87801-832 http://info.hotims.com/87801-835 http://info.hotims.com/87801-834 https://www.mobilityengineeringtech.com/