So, maybe interesting to note that I'm trying to install just 1 harddrive. So the only option I have is to install the drive as "separate disks". And that doesn't work for some reason.
Later I tried "low level formatting" that specific harddrive, with Samsung's diagnostic-tools, and ended op with surface-error's.
This is the 2nd Samsung Ecogreen F2 154ui that got corrupted in 1 week time, same situation (installing 1 HD in DNS-323): Can it be that DNS-323 is capable of messing up these harddrives?
1st HD: DNS-323 freezes at 94% formatting > Checking in windows > Smart errors
2nd HD: DNS-323 freezes at 94% formatting > Checking in windows > no smart errors > Manually formatting to ext2 with Ubuntu 9.04 > Harddisk "disappears" > reboot, HD available again > Manually formatting to ext2 with Ubuntu > Harddisk "Disappears" again > Downloading Smasing's Diagnostic tools > Fails diagnostics with "Surface errors" > trying low-level format, as suggested > Low-level format fails.
I'm exchanging this harddrive for the 3rd time now.
FIRST! I'm going to check it with Samsung's diagnostic tools, THEN (just in case) apply low-level format.
THEN I'll format it to ext2 under Ubuntu. THEN I'll put it in DNS-323.
If things STILL go wrong, chances are very probable that it's the NAS is breaking my harddrives.