How do I re-format a 4 TB drive to NTFS used in a Linux raid EXT2(?)

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  1. Posts : 35
    Windows 10
       #1

    How do I re-format a 4 TB drive to NTFS used in a Linux raid EXT2(?)


    I have a bunch of these bare drives (Seagate ST 4000DM000) that I'm told came from a Linux raid set-up. I want to use them as back up external NTFS drives in WIndows 10 Home. Windows' Disk Management can't even see them and I don't care about the data in them. All I want is to simply make them usable in WIndows 10. How do I format these to NTFS formatted drives? Please advise. Thank you.
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  2. Samuria's Avatar
    Posts : 6,453
    windows 10
       #2

    Welcome to the forum follow this video and use diskpart XBnPC - How to Clean-Delete-Remove Raid More!! - YouTube
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  3. Posts : 35
    Windows 10
    Thread Starter
       #3

    Samuria said:
    Welcome to the forum follow this video and use diskpart XBnPC - How to Clean-Delete-Remove Raid More!! - YouTube
    Thank you! I checked out the video. But the example is for a 400 GB drive. I have 4 TB drives. Should I use MBR or GPT... does it make a difference... I'm guessing I should select GPT instead. Yes?

    Addendum ( a few minutes later)....
    I'm doing this on an Asus i7 laptop with a 1 TB internal drive and the external hard disk is in a Kingwin brand EZ-Dock attached to the laptop.

    I went ahead and used "diskpart" in the command prompt and used the 'clean' command, went back to Disk Management and formatted the 4 TB disk using GPT. The end result? 1,678 GB only. What happened to the other 2 TB? Please advise.
    Last edited by bofhlusr; 01 Nov 2018 at 20:24. Reason: Addendum
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  4. bobkn's Avatar
    Posts : 4,094
    Win 11 X64 Pro 21H2 22000.100
       #4

    bofhlusr said:
    (snip)

    I went ahead and used "diskpart" in the command prompt and used the 'clean' command, went back to Disk Management and formatted the 4 TB disk using GPT. The end result? 1,678 GB only. What happened to the other 2 TB? Please advise.
    What file system did you use when you formatted the disk? If you used FAT32, that's the problem. Reformat it using NTFS. I believe that you won't have to use Diskpart again to do that; just do a quick format from Windows.
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  5. Posts : 35
    Windows 10
    Thread Starter
       #5

    It was part of a raid setup in Linux. I believe it was formatted using EXT2.
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  6. bobkn's Avatar
    Posts : 4,094
    Win 11 X64 Pro 21H2 22000.100
       #6

    bofhlusr said:
    It was part of a raid setup in Linux. I believe it was formatted using EXT2.
    Lovely. But in order to make it a Windows disk, you had to reformat it. What is it now?
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  7. Posts : 35
    Windows 10
    Thread Starter
       #7

    It's unformatted. I formatted it in WIndows 10 but it only shows up as 1687 GB. I'm already familiar with and used diskpart and Disk Management. It's supposed to be a 4 TB Seagate drives (Model: ST4000DM000, the serial number in one of them is W300F7NI. I bought them for $30 each).


    .... a few minutes later.... some thoughts:

    1. I wonder if the problem might be in the docking unit?
    2. Might it work if placed internally in a desktop PC (not like where it is now as an external USB drive)?
    3. Low level format? I don't think I've done this before...
    4. What if these are used in a Linux based OS? (but I gave up on Linux years ago)

    Anyone have other ideas?
    Last edited by bofhlusr; 02 Nov 2018 at 02:10.
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  8. Posts : 668
    Win 10 pro
       #8

    bofhlusr said:
    I have a bunch of these bare drives (Seagate ST 4000DM000) that I'm told came from a Linux raid set-up. I want to use them as back up external NTFS drives in WIndows 10 Home. Windows' Disk Management can't even see them and I don't care about the data in them. All I want is to simply make them usable in WIndows 10. How do I format these to NTFS formatted drives? Please advise. Thank you.
    First you should run some diagnostic on the drives, seagate has his own tool "SeaTools", to ensure drives are in good condition.

    http://knowledge.seagate.com/article...wwlocale=it-it
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  9. jimbo45's Avatar
    Posts : 10,944
    Windows / Linux : Arch Linux
       #9

    Hi there

    @roy111

    no need for all that diagnostic stuff - simply just format

    @bofhlusr

    For HDD's > around 2TB you have to make them GPT. Follow commands

    Get into command mode (admin) then do the following commands

    1) Diskpart
    2) List Disk
    3) Select Disk xx (xx will be the number of the 4TB disk)
    4)Clean
    5)Convert GPT
    6)Create partition Primary
    7)exit

    Now Windows can format the HDD in the normal way -- you can do it after step 6) but for people not familiar with the CLI it's probably easier to exit back to windows and format in windows

    however if you want to use cli -- then instead of 7) exit continue :

    7) list partition
    8) select partition xx -- you need the big one not the small efi one created when the convert GPT command issued
    9)format quick fs=ntfs
    10)assign
    11)exit

    Cheers
    jimbo
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  10. cereberus's Avatar
    Posts : 12,474
    Windows10
       #10

    Run these commands from admin command prompt :-

    Code:
    
    
    diskpart
    
    list disk
    
    select disk # (# = number of 4 TB drive from list)
    
    clean  (be sure you have selected right drive as everything gets wiped)
    
    convert gpt
    
    create partition primary
    
    select partition 1 
    
    format fs=ntfs quick
    
    assign
    
    exit
    
    
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