I have owned a DNS-323 for some time, - used as an image bank with 2X500GB HDDs. It is now full, and a purchased two new 3TB HDDs, and set them inside DNS-323 and started formatting. When that was finished I saw only 2TB of the HDDs were used. A quick search for capasity spec. of the DNS-323 showed me that it could manage max 2TB. OK. I took the two new HDDs out and tried with "Partition Master" to reformat them to normal 3TB NTFS. But this seems difficult. The space above 2TB will always remain as an "unallocated" space. I do not see how I can reset them back to "factory state" and from there get them formatted for fully use of the capasity of 3TB. Do anyone with experience have a good advice?