I'm finally putting together the older, smaller brother to this last "NAS" build. I'm using the same IBM raid card + HP SAS expander in a Norco 20 bay chassis. I'm using the 10+ year old motherboard from my old "NAS" with a better CPU (Q9550S). I'm using the eight 2TB Samsung 5400 RPM drives from the old server to start with. My slightly longer term plan is to get eight 14TB drives for the "new" server that I built in early 2016 and move the ten 6TB drives to the older smaller one. I had to cut out the back of a PCIe x1 slot to put the HP SAS expander in it since the two x16 slots will have larger PCIe cards in that that need the lanes. Cutting the slot wasn't exactly fun. I damaged two of the pins a bit cutting the slot, but the SAS expander doesn't use them, so it's basically irrelevant.
This has been brought about by the nightly backup server I've been using for close to 10 years having hardware problems seemingly with the drives in it's RAID array. It seems like it's going bad pretty quickly.
Edit: Now it's complaining about NTLDR being corrupted on the boot SSD.
I have a backup of it from ~5 years ago when I swapped in the SSD as the boot drive. I'll have to see if I can restore it. The OS drive backup is still current AFAIK since I basically haven't touched it since. Projects for tomorrow.
All the more urgency to get this other one running in the Norco chassis. It's doing a background initialization on the drives since it saw them as a foreign array. I was a little surprised that it was able to import the existing array from the PERC 6i the drives had been on. I plan to trash the old existing array, but this is basically a way to do a bit of a stress test on the drives since they've been sitting for almost 4 years and were only powered for the first time today.