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  • #2213831

    SATA, a turning point in technology…


    by jfuller05 ·

    What, in your opinion, is a beneficial advancement in computer technology?

    I would go with SATA (Serial Advanced Technology Attachment) for five reasons. These five reasons are more like advantages over PATA, which are: hot-swapping, cost, reduced wire count, speed, and protocol.

    Hot-swapping is a huge advantage over PATA. Can you imagine just the first thought and discussion about a technology allowing a user to plug and unplug a component without rebooting? I’m sure whoever first thought of the idea and voiced it was deemed silly by his peers.

    The cost of SATA is cheaper. You, of course, can check that yourself.

    Reduced wire count and the reduced bulk of SATA is a major advantage, especially for those that like to “get into” their computer. The wire count went from 80 to 7, a great reduction in my opinion. No longer does a hardware tech/enthusiast have to deal with the ribbon connector from a hard drive.

    The speed of the data transfer is another advantage SATA has over PATA. The transfer speed of PATA was 133.5 MB/s, while the SATA 150 offered us 150 MB/s; now there is SATA 600 which offers 600 MB/s. A great improvement in technology.

    Lastly, the SATA protocol is another great advantage SATA provides and improvement in technology. I won’t discuss the topology, SATA uses a point-to-point architecture, I want to mention the encoding. The logic encoding known as 8b/10b encoding.
    This scheme eliminates the need to send a separate clock signal with the data stream. The stream itself contains necessary synchronization information that allows for SATA host/drive to extract clocking. Use of 8b/10b encoding means the stream is also DC-balanced, which allows the signals to be AC-coupled. Taken from wikipedia.

    So, I think SATA was a great advancement in technology offering, like I said earlier, ease of functionality (reduced cable bulk), higher transfer speeds, hot-swapping, cost, and SATA’s encoding.

    What are some advancements that stand out to you TR?

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    • #2870513

      For what application?

      by neilb@uk ·

      In reply to SATA, a turning point in technology…

      Personally, I’d rather have SAS. You get the advantages of simplification of the physical interface with the addition of the SCSI protocol and a much more intelligent controller. But I tend to use servers and SANs and the duty cycle on most SATA drives doesn’t support 24-hour operation so I do have a bias.


      • #2870506

        Yeah, definitely, SAS for servers

        by jfuller05 ·

        In reply to For what application?

        The added cost of SCSI is justifiable in servers and disk arrays.

        I guess I should have mentioned why I even started talking about this. I was working on a workstation, it had a PATA drive, that made me think about SATA and the advantages over PATA.

        Yeah, SAS is preferred for servers, higher-end machines in general.

        • #2870503

          As I said

          by neilb@uk ·

          In reply to Yeah, definitely, SAS for servers

          I’m a server/SAN person so I wasn’t disagreeing at all. If you’re going to use ATA then it’s got to be SATA.


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