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What are the differences between AMOS SCSI and the .AMD devices?

April 26, 2017amos Devices differences SCSI

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What are the differences between AMOS SCSI and the .AMD devices?

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We call the AMOS formatted drive on older AMOS systems “AMOS SCSI”. These are drives completely formatted for AMOS. On the AM-8000, we are taking advantage of other, more flexible and optimized file systems, usually NTFS. The .AMD drives, begun as part of the AMPC product, are simply binary disk files, each representing a physical AMOS SCSI disk. They can be emailed, ftped, etc., and stored on almost any type of system, including AMOS. Inside, they are structured like regular AMOS SCSI drives. The AM-8000’s AMOS booting DSK: device MUST reside on a .AMD drive. AMOS SCSI vs. .AMD: • Maximum of 7 AMOS SCSI devices (including ATAPI like the DVD) vs. 10 active .AMD devices (unlimited inactive .AMD devices). • AM-8000 AMOS SCSI device operations, unlike most AMOS systems, are currently single-threaded. This may noticeably degrade performance when more than one job is using any AMOS SCSI device simultaneously. The .AMD device operation is multithreaded like most older AMOS systems. • The AMO