The new ST2 is equipped with a RAID 0 storage mode, which means users can attain up to 330MB/s read speed with the ST2's USB3. Whether it is used for search and editing photo galleries, or for video editing and synthesis, it promises smooth and. Hard disk drives are accessed over one of a number of bus types, including parallel ATA (PATA, also called IDE or EIDE; described before the introduction of SATA as ATA), Serial ATA (SATA), SCSI, Serial Attached SCSI (SAS), and Fibre Channel. Bridge circuitry is sometimes used to connect hard disk. The ST2 has three built-in disk configuration modes: RAID 1 (Safe Mode), RAID 0 (Speed Mode), and JBOD (Two Independent Volumes) for you to choose according to your needs. The ST2's built-in RAID 1 function controls every record that enters the system, and automatically backs it up into two copies. MFM was not the only twin- cable hard drive interface though: aside from its close relative RLL, there was also the now long forgotten high-end competitor to SCSI, EDSI. MFM was relatively simple to implement, and quite robust. RLL (Run Length Limited) encoding used the same electrical interface. This project is a hard drive emulator for your Atari ST using an inexpensive STM32 microcontroller and a SD card.
