Originally Posted by
RoninBlade
Serial interfaces offer an improvement over older parallel in storage applications and environments. These benefits include better performance, better scalability, and also better reliability as the parallel interfaces are at their limits of speed with reliable data transfers. SATA drives can also operate in the same environment while ATA cannot. For example, using faster SAS drives for primary storage and offloading older data to cheaper SATA disks in the same subsystem, something that could not be achieved with ATA.
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