LYCOS RETRIEVER 
Serial: Ata Raid
built 266 days ago
The Serial ATA 1.0 Specification ... has new features that are not compatible with all existing parallel ATA drivers. Existing parallel ATA drivers do not comprehend any newly defined features and capabilities for which there are no equivalents in parallel ATA. Therefore, such software will not utilize any such new features. A controller that takes advantage of these new features is said to be operating in Native Serial ATA mode. A Serial ATA controller capable of doing both emulation and native modes cannot switch between Emulating Parallel ATA and Native Serial ATA modes while Windows is running.
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MILPITAS, Calif., Jan 31, 2008 /PRNewswire-FirstCall via COMTEX/ -- LSI Corporation (NYSE: LSI) today announced that NEC has selected LSI MegaRAID(R) Serial Attached SCSI (SAS) adapters for integration into NEC's newest Express5800 series of servers. The newly launched LSI MegaRAID SAS 8708EM2, featuring the LSI SAS1078 RAID-on-Chip (ROC), has been adopted for new NEC rackmount and tower servers, including the Express5800/120Rj-2 and the Express5800/120Rh-1.
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Serial ATA will not instantly replace parallel ATA. For some time both types of controllers will exist on the same system at the same time. These coexisting controllers can be built into a system in one of two ways, both in the same chipset, or a Serial ATA controller added to a system with parallel ATA in the chipset. If both controllers are on the same chipset, it is imperative that they are created as separate PCI functions so that Windows interprets these devices as two separate controllers.
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