Summary: Seems to work good but we had to waste 3 weeks of having server promlems to get 1 that worked. We got 1 and installed it. It took us about a week before we realized it wasn't working properly. So we ordered another one so we could stay running when we sent it back. Got the second 1 and it worked great so sent the first one back for a replacement. Got the third one and it didn't work either. So we had to send it back.
Summary: I bought the Buffalo TeraStation TS-X4.0TL to replace a failing shared storage server. The features that caught my eye were RAID 5 and Active Directory support. BEWARE!!! This turned out to be a big mistake! I get the device and begin to set it up. I connect it to the active directory and the Domain Groups sync but not the Domain Users. After a great deal of research I find out that is a common problem I then proceed to call Buffalo tech support.
Summary: First, we like Buffalo and will continue to buy their products. Their is nothing wrong with the design of this product. Buffalo support has been superlative. But 2 TB hard drives are not ready for prime time. Our unit has Samsung drives. We use it raid 5. We lost one drive on Monday. We continued using the unit only to read from. On Thursday a second drive failed. All data was lost. Luckily we backed up everything on Monday and continued to write to another drive.
Summary: Every interaction I've ever had with Buffalo's customer support has been terrible. The last one regarding this new Terastation was the worst. NFS DOES NOT work on this device. We just got off the phone with the Buffalo tech support. He said tech support doesn't support Linux clients. (So what is NFS good for?) When we started talking just about NFS, he chuckled and said "good luck." When we asked why, he said it doesn't work all that well.
Summary: I own several of these and every time they crash, I replace them with a Qnap. Have four Qnaps and haven't had one problem with them. The Buffalos are infamous for crashing. If interested, google the E04 error. In fact, Buffalo has had so many problems with this, they are even giving it a new error code. There is even a Wiki on how to get your data off these since they crash so much. Tech support is near nonexistant as well.