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MarcR's avatar
MarcR
Aspirant
Jan 19, 2016

WD Red 3TB could not be used in NetgearNAS NV+ RND4000

I have a ReadyNAS NV+ RND4000 with this configuration

 

Ch 1 : Seagate ST2000DL003-9VT166 [1862 GB] 
Ch 2 : Seagate ST2000DL003-9VT166 [1862 GB] 
Ch 3 : WDC WD20EARX-00ZUDB0 [1862 GB] 
Ch 4 : WDC WD20EARX-00ZUDB0 [1862 GB] 

 

The disk in Ch1 is logging errors so I decided it's time to change it and went and bought a WD30EFRX WD Red 3TB.

I then tried to remove the Seagate ST2000DL003-9VT166 and add the WD30EFRX WD Red 3TB and I got this error:

 

<< The disk attached to channel 1 could not be used. The most common reasons are RAID resync in progress, faulty drives, and disks that are too small to be added to the array. >>

 

So I reinserted the original Seagate ST2000DL003-9VT166 and it accepted it and it's re-syncing but I'd really like to change that disk.

 

Any idea why the WD Red 3TB is not accepted. 

- It's not dead, I tried two WD Red 3TB

- It's not too small, it's actually 1TB larger than the three 2TB disks remaining.

 

Thanks

 

 

6 Replies

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  • JennC's avatar
    JennC
    NETGEAR Employee Retired

    Hello MarcR,

     

    Welcome to the community!

     

    When you removed the disk 1 that has errors, were you able to access the files? With XRAID (RAID5 in your case since that is a 4-bay NAS), you are allowed to have 1 faulty disk and still have the data intact so you should still be able to see the files without one of the 4 disks.

     

    If you are still able to and the new disk you are inserting is not being accepted, please make sure that new disk is empty an no partition. I suggest you check it with diagnostic tools.

     

    Regards,

    • MarcR's avatar
      MarcR
      Aspirant

      The two drives I tried were brand new, factory sealed. They're unlikely to have had any data on them, not even a partition.

      Yes, the unit is working fine with or without the Ch1 disk. It's in X-RAID mode.

  • StephenB's avatar
    StephenB
    Guru - Experienced User

    MarcR wrote:

    I have a ReadyNAS NV+ RND4000 with this configuration

     

    Any idea why the WD Red 3TB is not accepted. 

    - It's not dead, I tried two WD Red 3TB

    - It's not too small, it's actually 1TB larger than the three 2TB disks remaining.

     

     


    It's not accepted because your NV+ doesn't support disks > 2 TB.

     

    It's a very old platform, and can't handle GPT formatting.  The disk sizes also can't be correctly detected, which is why it is reported as too small.

     

    There is no workaround.

    • MarcR's avatar
      MarcR
      Aspirant

      Thanks Stephen.

       

      Before I go wasting more money on drives, two questions:

       

      - In your opinion, will the WD Red 2TB work instead of the 3TB?

      - What's the replacement product for the NV+? I've been happy with Netgear.

       

      Marc

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