ReadyNAS Duo v2 sees 4TB drive as 1.7TB

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gscholland wrote:

 The label on the bottom of the ReadyNAS Duo says it's a v2 rive is only 1.7TB in size?)

 

Attaching what I see in the Admin GUI along with a photo the underside of my ReadyNAS Duo which says it's a v2 :)

 

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The labeling is confusing - and you have a v1.  A v2 would give you a very different admin GUI.

A v1 (original Sparc-based) Duo

• says Duo on the front panel
• runs 4.1.x firmware
• may have a v2 label on the bottom or back.  This indicates a minor hardware revision - not that you have a v2 platform.

A v2 (ARM-based) Duo

• says Duo v2 on the front panel
• runs 5.3.x firmware

Your NAS is limited to 2 TB disks, since it doesn't support GPT formatting.  Using larger disks will result in getting a smaller volume size (generally less than 2 TB).  I suggest putting back the original disk for now (replace it with the NAS running), and either exchange your disks for 2 TB Reds, or purchase a new OS-6 NAS.  The RN212 is the equivalent of your Duo - though it is much faster, and has more features.

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gscholland wrote:

 I used the hardware compatability list on Netgear's site to verify that the Western Digitial Red 4TB drive was compatible.

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They don't keep that up to date for the legacy products, so most of the disks listed are no longer sold.  It's not a useful guide anymore.  NAS-purposed drives (WD Red or Seagate Ironwolf) are both good choices for your NAS.  Though again, you can't go over 2 TB.