Forum Discussion

Luminary

Jan 01, 2019

Solved

Cannot Copy Files Larger Than 2 GByte to ReadyNAS

I'm running the latest ReadyNAS 6.9.4hotfix1 on my ReadyNAS with more than 3.5 TByte free and a Windows 10 Pro x64 workstation and have for many years (with whatever the latest official version was a...

Tips from other users

Retired_Member
Jan 01, 2019
That sounds weird, CarlEdman. What happens in case you use the admin page in a browser on your windows workstation to pull (upload) one of the concerned files to the nas?

Kind regards

Retired_Member

Jan 01, 2019

That sounds weird, CarlEdman. What happens in case you use the admin page in a browser on your windows workstation to pull (upload) one of the concerned files to the nas?

Kind regards

CarlEdman

Luminary

Jan 03, 2019

Thanks for the suggestion, Retired_Member! I didn't even know you could do that.

The result: It actually worked (albeit at a much lower transfer rate of about 22 MByte/sec), solving my immediate problem.

But I still wonder why the underlying issue occurs.

Retired_Member
Jan 03, 2019
I would also like to know, CarlEdman, but could only guess.

If you do not need IPv6 and have it enabled in the network configuration of the nas, please disable it there and give it another try.

Kind regards
- StephenB
  Guru - Experienced User
  Jan 03, 2019
  Are you certain this is a file size limit? Perhaps try using NasTester ( http://www.808.dk/?code-csharp-nas-performance ) to isolate the problem.
  
  For instance you could set up a 400 MB transfer test running 20 times (8 GB total) and see if that fails. Then adjust the file size upwards the the loop count downwards (800 MB x 10, 1000 MB*8, 2000 MB*4, 4000 MB *2, ...), until you find the failure point.
  
  FWIW, I don't see how this would be related to ipv6, though I agree that you should disable ipv6 if you don't need it (and most people don't).
  - Retired_Member
    Jan 03, 2019
    StephenB wrote: "FWIW, I don't see how this would be related to ipv6, though I agree that you should disable ipv6 if you don't need it (and most people don't)."
    
    You are most probably right, but my recommendation belongs to the category "Do not enable anything you do not truely need". As I think the issue is network related, disabling IPv6 will reduce the complexity of the network configuration. Even, if it might not be the solution, it might bring us closer to a situation, where we finally can identify the reason(s) for the issue.