jmke

Though the technology seems fairly new to many of us end users, command queuing has been around for years. The idea of reordering the list of requests given to the hard disk drive was first introduced in the SCSI-2 standard and implemented in SCSI drives in the mid-90's. So, why has the technology only just now been given any sort of exposure to the mainstream computer market? Well, most importantly because it has been only recently implemented in consumer class desktop drives.

For the last few years, we have been hearing about more and more multithreading technologies like Intel's HyperThreading CPUs and even more recently, Intel and AMD's dual-core architecture. We've been multitasking since the release of Windows 95 and with Moore's Law comes a need for faster technology, and the bottleneck always seems to be the hard disk storage device.

Seagate Technologies has been a major player in the storage device game for quite some time and have also just entered the command queuing game as Maxtor did last year with its MaXLine III series hard drives with Native Command Queuing. Like Maxtor, Seagate has been able to design a native SATA drive with Native Command Queuing, while also increasing the drive's capacity to 400GB with its 7200.8 line, which is 33% larger than Maxtor's largest drives (300GB).

http://www.anandtech.com/storage/showdoc.aspx?i=2396

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