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How to reformat a hard drive that was previously in a RAID configuration?
 
Choose your operating system: Windows | Linux
 
For Windows:
 
 
Method 1: Use HDDGURU Low-level format tool
   
   
   
1. Download the HDDGURU LLF tool to your Windows computer, complete the installation and open the tool.
Note: speed is capped at 50MB/s for the free version
   
   
   
2. Select the disk you like to erase and click the "Continue" button.
Warning: data stored in the select disk will be erased and is not reversible
   
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3. Go to the "LOW-LEVEL FORMAT" tab, and then click "FORMAT THIS DEVICE".
   
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4. Close the tool window once the progress reaches 100%. Then, use Window’s disk management to config the disk’s unallocated space to complete the setup.
   
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Method 2: Use the Windows Diskpart command to perform a Low-level disk format
   
   
   
1. Connect the drive you desire to format directly to the motherboard without a drive enclosure.
   
   
   
2. Right-click the "Start" button Start button and select "Disk Management" to confirm Windows recognized the drive, and write down the disk number that needs to be formatted as you’ll need it later.
   
   
   
3. Press "Windows key + R" to open the Run dialog, type "cmd", and click "OK" to open a command prompt.
   
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4. Once the command line is open, type "diskpart" and press Enter.
   
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5. The above command will open a Diskpart window. In this window, type ‘list disk’ and press Enter. It will list all the available disks.
   
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6. Now type "select disk (disk number)" as shown below. Specify the disk number which needs to be formatted (the drive number you wrote down in step 2.)
   
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7. In this step, type "clean all".
Warning:This command will permanently delete all files and the RAID table and is not reversible.
   
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8. After formatting is complete, type "exit" in the command line and press Enter to close the diskpart window. Use Window’s disk management to config the disk’s unallocated space to complete the setup.
   
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For Linux:
 
 
 
Method: Use Low-level format command tool
   
   
   
1. Connect the drive you desire to format directly to the motherboard without a drive enclosure.
   
   
   
2. Open the terminal command window.
   
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3. In the terminal command line, type "lsblk" and press Enter to list all available disks. Next, write down the disk latter that needs to be formatted. (Sdb in this example)
   
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4. In this step, type "sudo dd if=/dev/zero of=/dev/sd(drive latter) bs=1M", press Enter, and enter the password of your computer to continue.
Warning: This command will permanently delete all files and the RAID table and is not reversible.
   
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5. You can close the terminal once the formatting is complete. The disk will show unallocated space, and you can configure the disk space to your desired setting.
   
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