Pr4100 Disk 1 shares not acessible

I checked my Nas last night and couldnt access transmission.

So logged into pc and could not access any shares on disc1. It was showing a smart error. I shut restarted and ran a disk check.disk now says healthy. I
then noticed multiple public folder, but all showed 8k in console

I tried accessing via ssh, but would not accept my passport.

The raid mirror partition i have on 2 other disks is ok. After shutting down i removed these disks until i fix disk 1.

On console the disk shows 2.2 tb free and is a 4tb disk. So hopefully data is still there. But no shares are shown now.

How can i access disk to copy data off, so i can format it safely with out looking data.

Is it possible to connect it to pc and copy off in windows 7?

I have completed a system reset and accessed console again.

It shows 2.17 tb free, I can see shares but they show 8k in each one.
In addition some of the shares are still duplicated, eg public, public 1, public2 and public3.

I have left it running a scan disk.

If this doesn’t work, would installing virtual box on my win7 pc and attaching disk to pc assigned to virtual box let me retrieve the data?