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Forum Discussion
Largest HD Size on ReadyNAS Duo V2
I have got a Duo V2 with what the Firmware check says is the latest firmware, Raidator 5.3.13, The two TB drives in it are getting smaller everyday. What is the largest HDs I can put in as a re...
Hi Smiley4187,
Welcome to the Community!
You may also check the Hard Disk Compatibility List for reference for the highest drive capacity that it can support. Note: The HCL might not be updated for the Duo V2 since it is already EOL.
Regards,
JohnCM_S
NETGEAR Community Team
JohnCM_S wrote:
The maximum drive capacity that you can put on the Duo V2 is 4TB. You may also check the Hard Disk Compatibility List for reference.
The duo v2 HCL hasn't been updated for years, and 4 TB was the largest drive available when it became end-of-life.
As far as Netgear support is concerned, the ceiling is 4 TB. But there is at least one poster here who was able to use 6 TB drives in their NV+ v2 (which has the same architecture as your duo v2). Another was able to install 2x8TB drives in a duo v2, though he did run into some snags: https://community.netgear.com/t5/Using-your-ReadyNAS/Tutorial-8TB-drives-installed-in-Readynas-duo-v2/m-p/1278776#M129512
I know an NV+v2 can go to at least 12TB, so the volume size limitation on a Duo running the same firmware should be the same. I believe I have read here that there is one, but I don't recall if it really is 12TB or something bigger. But I can see that the authors of the OS (or maybe even the Linux under the hood) might not have considered the possibility of very large drive suppport in the tool set. But I, too, have put 6TBs in a Duov2 (just as a test, I didn't leave them there long) and know they work without any necessary jumping through hoops (at least with the most recent firmware at the time, which I cannot remember).
Interesting reading about the 8TB drives. I wonder if it will go even bigger -- maybe by starting with a bigger initial drive. Personally, I'd recommend an investment in a newer NAS before putting that much drive in a Duo, but it would be interesting to know.
I believe the v2s have the same expansion restrictions as 4.2.x
- can't expand over 16 TiV
- can't expand more than 8 TiB from their initial size
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