We can not say that the disc is very old, so obviously I can not judge its reliability. Only if I am using my old 1.5TB WD, half fell hs (6) in 1 year ... since I make my raid 1 clusters with different discs by mixing and with Seagate. And if the goal is to store especially important documents, I suggest you do the same. After performance side we are a little crazy for a nas. Limit hot enough, the network behind bridera anyway. Where I'm happy and especially where my review can provide information, it is on compatibility with windows home server 4to 2011! (Installed on a conventional pc) partitioning gpt and hop it rolls alone! A real treat to have so much room in one disc!