Performance - Raw Drives

Prior to evaluating the performance of the drives in a NAS environment, we wanted to check up on the best-case performance by connecting one of them directly to a SATA 6 Gbps port. Using HD Tune Pro 5.50, we ran a number of tests on a raw drives. The following screenshots present the results for the Seagate Enterprise NAS HDD. Corresponding images for similar drives that have been evaluated previously are also provided in the drop-down box for easy comparison.

Sequential Reads

Sequential Writes

Random Reads

Random Writes

Miscellaneous Reads

Miscellaneous Writes

Specifications and Feature Set Comparison Single Client Access - DAS Benchmarks
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  • cm2187 - Wednesday, December 10, 2014 - link

    +1
  • MikeMurphy - Wednesday, December 10, 2014 - link

    Exactly.
  • tocker - Wednesday, December 10, 2014 - link

    We could place bets. I'm going for a 40% failure rate inside of 3 years.
    Thats probably being generous.
  • Laststop311 - Thursday, December 11, 2014 - link

    https://www.backblaze.com/blog/hard-drive-reliabil...

    Hitachi has the lowest failure rate in a massively huge deployment of HDD's in a cloud storage facility. Gives you a pretty good idea just how amazing they are.
  • ddriver - Sunday, December 14, 2014 - link

    Yeah, but that's not a given, remember back in the days where those same deskstar disks were called deathstar cuz they were dropping down life flies?

    It would be nice of more cloud storage provides post their stats so that regular people know what to buy.
  • Zap - Wednesday, December 10, 2014 - link

    What RPM are these drives? I know manufacturers like to obfuscate this information, but as a consumer I'd like to know.
  • wavetrex - Wednesday, December 10, 2014 - link

    That raw read/write speed is typical for 1TB platters on a 7200rpm drive.
    My guess is that speed is the comfort zone for these drives, and they probably spin down to 5400 when idling to reduce power consumption
  • MrSpadge - Wednesday, December 10, 2014 - link

    No matter what WD likes to tell you with "IntelliPower" etc. drives do not normally run at different speeds. The mechanics, head aerodynamics / fly height and everything must be tailored to a specific spindle speed. Changing it on the fly has so far been unfeasible and wouldn't be much quicker than simply spinning down at idle, yet provide a only a small fraction of the power savings.
  • hlmcompany - Wednesday, December 10, 2014 - link

    IntelliPower and WD don't say that the drive changes speed during operation. An IntelliPower drive is a fixed speed, but set to meet certain power requirements. Because of this not all IntelliPower drives are at the same spindle speed.
    http://wdc.custhelp.com/app/answers/detail/a_id/36...
  • Navvie - Wednesday, December 10, 2014 - link

    When 'IntelliPower' was first introduced WD were very secretive about exactly what it meant. Although there are now sources, their vague comments on exactly what IntelliPower is lead people to the conclusion that the drives were adjusting speed depending on demand.

    I believe the clever guys at SPCR were the first to determine the speed of IntelliPower drives by looking at the drives harmonics.

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