A few years ago I bought several cheap SAN Digital Elite NAS 104 storage units. They are cheap way to get some disk.
Since then I have had various issues with disks dropping out of the RAID and being recognized. I have been trying to work on the cheap, and I blamed using WD Green drives for the failures.
Except that now I have replaced those drives and am still having issues. On MAY 4th I tired to call SANS Digital and could not get through. I started a support email.
As of today – May 27th I have resolved one issue on one system (Bad disk, seems to be fine after a swap). I have one system in working order. I have one system operating in a raid 5 that has lost a disk and I can not get any to drop back in, and I have one that lost drives and now will not build a RAID at all.
May 4 I submit an issue
I last sent a reply on May 18th and have not heard back.
These units are not expensive, and fairly easy to configure. However, based on the support I have received, I have to recommend that people stay away from the manufacturer and look at some other value vendor.