Externa/internal hard drive transfer speed

Discussion in 'OT Technology' started by Marix, Oct 28, 2007.

  1. Marix

    Marix OT Supporter

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    My USB2.0 external HD has started being noiser than normal recently so I think it's time for another one! At the moment, transfer speeds are something around 20mb per sec from the external to my PC HD.

    I notice there are now more connectivity options since I bought that one, eSATA being the fastest, right? My new computer has the Striker Extreme motherboard which has 2 eSATA ports on the back.

    I know that USB2.0 is rated at 480mbps (roughly 60mb/s) but I have never seen speeds anywhere close to that.

    Is there any real world advantage to getting an eSATA external HD (rated at ~1500mbps?

    Also, one other quick question - what kind of speeds are you guys seeing with INTERNAL hard drives?
    For instance if you have a 700mb divx file, what speed do you see if you right click -> copy to? I see roughly 65-70mb/s.. is that about right?
     
  2. Kelex

    Kelex New Member

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    yes, eSATA is faster.

    Realworld estimates, USB 2.0 is around 25MB/s, Firewire is around 40MB/s, eSATA is around 60MB/s.
    Other advantages of using eSATA is that you can use features like SMART, NCQ, and Port multipliers.

    Yes, Internal drives are around 65MB/s or more.
     
  3. Marix

    Marix OT Supporter

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    Okay, that's good to know. I'll go for eSATA in that case!

    No idea what any of those things are. Well, I've heard of SMART but I didn't think it makes much difference. All I use the drive for is a couple of times a week I drag all of my downloaded stuff, TV episodes, mp3s etc onto it.


    I have 2x Seagate Barracuda 7200rpm in RAID 0

    Is ~70mb/s about right for that?

    I presume raptors would be faster?
     
  4. Kelex

    Kelex New Member

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    Transfer rates has min, max, and average. 70MB/s would be average.

    Not necessarily. Access times is where the Raptor pwns other HDDs.
    Access times is what counts for day to day use anyway. Transfer rates are less important.
     
  5. Marix

    Marix OT Supporter

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    Okay, thanks for your help.

    My friend tried copying a large file on his computer. It's a Dell :)hs:) C2D E6750, 2Gb DDR, 250Gb HD, Vista. His speed was only 25mb/s. Have you any suggestions about why it may be so slow?
     
  6. Kelex

    Kelex New Member

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    Could be a lot of things.
    What I would do is test that drive on another machine. Perhaps yours.
    Use HDTach or HDTune or Manufacturer tools to analyze the drive.
    Obviously, if errors are found, drive is dying.
    If none, the problem is in his Dell machine.
     

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