I've done this build. Scroll to the bottom for the Miami section.
noted ACI June 2014 - noted
Here's the trick. Ready?
Seasonic SS-250SU, use the right angle bracket that's supposed to be used to hold the far end down as an overhang support. I started cutting sheet metal and all sorts of things, but frankly, it was just fine like that for the two or three months between the time I built it and deploying it in Miami, so I just left it like that. Erm... extra F2B ventilation.
You should know it's a very tight build. Sounds obvious, but you have to do this to get the PSU cables around the hotswap frame:
All in all, the DS380 is a nice case, and when I took it to Miami, I nearly built a duplicate (both for redundancy and because I wanted to reconfigure the WSS pool) around Avoton (very mixed on that, esp vs. E3-1220L, because I lose Vt-d, which is both virtual and literal flexibility).
It's the cheapest way to get a case and eight 3.5 hotswaps (plus the four 2.5 internals) -- and the double SAS connector is just plain impressive.
OTOH, all that space on the side could be a 5.25 bay, tray bays are annoying, and the one usual advantage they provide - cooling by better airflow and an ad hoc metal heatsink - is negated by plastic trays.
Frankly, for density and hitting (my personal preference of) 4+2 spindles for balance of storage and double parity (whether RAIDZ2 or RAID6), I'd prefer 5.25 bays top down. I've been picking up Travelstar 1.5TBs at $80-$90 a drive (watch B&H and Microcenter) which allows me to hit that spindle ratio with 6TB addressable per bay ((6-2)x1.5TB per 5.25) without having to consider "lowest common denominator" issues (in terms of 3.5 disks per bay -- 5 in 3, 4 in 3, 3 in 2, etc.) beyond the right HBA/RAID card.
That in mind, a Supermicro X10SL7-F (which I already have) in combination with an iStarUSA (whose products I don't generally like, but the) S-919 looks so good that I think it will be my last build in my "cloud storage/workstation anywhere" project. I think it represents the best storage/spindle expandability in that area: a standalone machine (i.e. without considering racks/blades) while allowing for entry/middle workstation processing. However, after the costs of buying mobile racks/bays... it's a choice. The DS380, coupled with (eight) 4TB HGST Coolspins (and four SSDSs) goes very, very far.
Hey, my needs are mine (and quite specific) but if you have any questions, especially if you clarify your goals...
I'll throw in more photos from that build, because tight doesn't even begin to describe the PITA that building that one was (seriously, you need to sorta roll the drive bay frame in around the SFF breakout cables and then nudge it forward and back until it aligns just right -- you'll see) just so you understand:
Any incoherence should not be blamed on my bartender, whose help was required to finish this reply.
[EDIT: fixed IMG links. That should be blamed neither on me or my bartender; the Android Dropbox app dropped the ball... and apparently I can't use BBCode to resize, so I had to redo the images to less obnoxious sizes (at 7am)... and also, it seems I lost my STH account in the recent mishap, and had to reregister, so there's that too.]