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> What's native command queuing.
Command queuing is a technique that allows a disk to answer requests in another order as they were received. So if a disk receives a request for a data block near the center of the disk, then one for a data block on the edge of the disk, then one for a datablock near the center, it can answer first request 1, then 3 and then 2. This reduces head movement which results in better performance.
Native command queuing, as opposed to tagged command queuing, adds to that memory access optimalizations that mean that a datablock does not have to be read start to end, but can be read in parts as well and it adds a way to bypass several layers of software and access the memory directly.
Jochem
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