2big RAID User Manual
2big RAID User Manual

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Getting Connected

Connect the power supply

Connect the included power cable in the order listed below.

  1. 2big RAID power input.
  2. A live power outlet.

 Use only the power supply provided with your 2big RAID. Power supplies from third-party devices and other LaCie products can damage your 2big RAID.

Connect the USB cable

Use the USB-C to USB-C cable to connect 2big RAID to a USB-C port (USB 3.1 or Thunderbolt 3) on your computer.

Set up LaCie 2big RAID

The setup process lets you:

Register your device Get the most from your device with easy access to information and support.
Install Toolkit Manage Sync Plus plans and more.
Learn more about Toolkit
Toolkit provides useful tools that let you easily:

  • Set up your drives for performance or protection.
  • Sync your computer data with 2big RAID.
  • Archive edited and deleted files.
For details on Toolkit features, see the Toolkit user manual.
 Your computer must be connected to the internet to install Toolkit.

Start here

Using a file manager such as File Explorer or Finder, open LaCie 2big RAID and launch Start Here Mac or Start Here Win.

Register your device

Enter your information and click Register.

Download Toolkit

Click the Download button.

Install Toolkit

Using a file manager such as Finder or File Explorer, go to the folder where you receive downloads.

Open the file. Click on the Seagate Toolkit Installer to launch the application.

Click on the SeagateToolkit.exe file to launch the application.


 Your computer must be connected to the internet to install and run Toolkit.

Storage format

LaCie 2big RAID is configured RAID 0 for full storage capacity and formatted exFAT for compatibility with macOS and Windows. Install Toolkit to help you initially set up the drives for performance or protection. See RAID Setup in the Toolkit user manual for details.

If you use 2big RAID with only one type of computer, you can optimize file copy performance by formatting the drives in the native file system for your operating system. See Optional Formatting and Partitioning for details.

Disconnecting the hard drive

In order to avoid file system corruption, it’s important to unmount the drive volumes before disconnecting the interface cable. See Safely Remove Device From Your Computer for details.