Linkstation Quad Pro: Error after reinserting disk, disk shows up as unformatted

[mattlocked]

Hi everyone,

I'm quite concerned as I may have lost 2TB of important content. I really hope you guys can help.

I have a Linkstation Quad pro in JBOD configuration, I've had it for a while with a 4TB, a 3TB, a 2TB and a 1.5TB HDD. When the last disk was full, I purchased another 4TB drive, so in order to backup the contents of the 1.5TB HDD to the new 4TB disk, what I did was to remove (Nas off) the 2TB disk, and put the new 4TB in its tray, then I turned on the Nas, formatted the new 4TB disk and created a backup job to replicate all the content of the 1.5TB drive to the new 4TB disk.

After I finished and checked everything was ok, I removed the 1.5TB HDD from the tray to use it with an external usb box, and reinserted the 2TB HDD in the tray and then to the Linkstation, expecting that the NAS would read the drive as normal, but it didn't.



I used the check disk feature and the 2tb disk appears as non formatted, also the system appears to have mistaken the unit name, this is weird: the new 4TB drive is a Western Digital WD40EZRX, while the 2TB drive is a WD20EZRX, but if you check in the image, Disk 3 appears as WD20EZRX although it has 4TB of storage, and the 2TB appears as WD40EZRX when it is a 2TB.

The contents of the 2TB disk ought to be unaltered and I hope I can put the HDD in a usb box and maybe copy such contents to another disk, at the very least.  I'm not sure, considering the FS  the Linkstation uses, if I will be able to read the contents with a PC or I will need to use some linux version to do it.  Any suggestions on how to recover the data will be sincereley appreciated, I cannot afford to lose all those files.

Thank you very much for your help.

Matt.