Latest post Fri, Aug 3 2018 8:26 PM by cuervo. 2 replies.
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  • Fri, Aug 3 2018 2:54 PM

    • cuervo
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    1000 MB/sec on two thunderbolt external drives

    Quite by mistake, I set up a Windows RAID 0 using one SSD each on a different Thunderbolt 2 bus controller. When I ran the Blackmagic disk speed test on the RAID, it clocked write speeds around 1000MB/sec. Pretty much surprised me because the same two drives RAIDed together on the same T2 bus clocked at 650MB/sec.

    SYS1:ASUS Z97, Haswell 4.0GHz CPU, 32GB RAM, Quadro 4200 + GTX1070, Thunderbolt II -DNxIO-FSI CM171 ///SYS2:ASUS Maximus Extreme V, Sandy Bridge 3.1GHz... [view my complete system specs]

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  • Fri, Aug 3 2018 4:03 PM In reply to

    Re: 1000 MB/sec on two thunderbolt external drives

     If your PC has 2 different TB2 controllers then the results are to be expected. MP 6,1s have 3 controllers and we often get these kinds of numbers.

    On the same TB2 controller reaching only 650 MB/s, this is likely caused by the SATA chipset or how it is interacting with the TB2 controller.

     

    MC 2020.6, W10, Gigabyte X299M, Intel 9940X, Gigabyte 2080Ti Waterforce, 64GB RAM, Samsung 970 EVO M.2 SSD, BM Mini monitor & Dell UP2718Q. MBP 2012... [view my complete system specs]
  • Fri, Aug 3 2018 8:26 PM In reply to

    • cuervo
    • Top 100 Contributor
    • Joined on Fri, May 2 2008
    • Santa Fe, NM
    • Posts 1,174
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    Re: 1000 MB/sec on two thunderbolt external drives

    Thanx for confirming, Dom. What a pleasant surprise that this works.

    SYS1:ASUS Z97, Haswell 4.0GHz CPU, 32GB RAM, Quadro 4200 + GTX1070, Thunderbolt II -DNxIO-FSI CM171 ///SYS2:ASUS Maximus Extreme V, Sandy Bridge 3.1GHz... [view my complete system specs]

    M-Power Independent Video and Film Services, Sony PMW-F5--Sony FS700U--Canon 7d--Odyssey 7Q

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