LaCie RAID array creation

Discussion in 'Mac Accessories' started by mvgian, Mar 25, 2018.

  1. mvgian macrumors newbie

    Mar 25, 2018
    I have a LaCie 2big Thunderbolt 3 RAID drive. I'm currently using LaCie Raid Manager software to create RAID array. I noticed that MacOS is recognizing the RAID volume as an external drive instead of a RAID set whereas in LaCie Raid Manager, it is detected as a RAID array. If i try to create RAID set using RAID Assistant via MacOS Disk Utility instead, LaCie Raid Manager does not recognize the volume as a RAID array. Would it be better to use LaCie Raid Manager to create RAID array/set instead of MacOS Disk Utility?
  2. Fry-man22 macrumors 6502


    Nov 25, 2007
    The method of using the drive manager creates and array using the controller in the device. This means that the array shows up as a single disk to the OS, it essentially knows nothing about the array.

    Disk utility just reports it as an external drive because to the OS that’s exactly what it is.

    When you use the Disk Utility to create the array, you are using the OS software to manage the array, so now it knows about the RAID.

    For best performance, I think you should use the drive manager method, not the OS disk tools.
  3. FireWire2 macrumors 6502


    Oct 12, 2008
    LaCie 2big Thunderbolt 3 RAID drive is a RAID box. It recommends using LaCie RAID GUI to create a RAID volume. Just like the T8C-S12.TB3 from DATOptic, It will offload the resource to the Internal IO RAID processor. Make the transfer rate up to 2400MB/s in my case with DATOptic T8C-S12.TB3 box.
    If you have a RAID box, do not use Disk Utility to create an array!

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