This one ran 6 years non-stop with the only problem being 1 HD failure, and it still runs like a top. The new ones seem to be doing OK, but they are less than a year old, so it remains to be seen if they get the same life out of them as the 2900 gave them. They've got another PowerEdge running Linux for another imaging service - and it's about 5 years old and just now reported a ECC error on the RAID card. Only problem it has ever had also.