I built another NAS box, but this time using new hardware rather than 10+ year old stuff from my junk boxes. I knew it would be faster, but it has turned out even better than I expected. It's at least 3 times as fast and I was already getting 200Gbs+ transfers from my junk parts. Here's what I got from Newegg: Lian Li Lancool Case 6-3.5" internal bays AMD Athlon II X4 3.0gz CPU Asus motherboard 6 -SATA6 ports, USB 3.0 Corsair CX 500 Power Supply 4 gigs RAM Total price delivered to my door was $301.95 + $1.92 shipping. That is competitive with an off the shelf NAS with 6 drive capacity. The quad core CPU and 4gig RAM are overkill and I could have come in lower if I had backed off a bit but the price was OK, and it was a combo deal so I went with those choices. I used existing drives I had on hand, some SATA3, and some SATA6, 1.5TB and 2TB capacities. Installed FreeNAS .7.2.6694 (64bit), takes about 20 minutes. Finished it up yesterday after the power came back on from the hurricane, so I've been doing some testing this afternoon. The problem is I can't really load it up, the PC's I'm connecting with just won't read and write fast enough. I have to double up so the NAS is handling two PC's at the same time in order to get some idea of what it's capable of doing. If things aren't too busy tomorrow I'll do some system tweaking and add a 3rd PC for concurrent transfers. I was copying a Windows 7 iso file to test with, it's 3.1gigs in size. Just drag and drop it in Windows Explorer to the NAS and back. So these file transfers are using Samba/CIFS shares, which adds some overhead. Simultaneous writes to the NAS The left side of this first graph shows a ~575Gbs write from a Windows XP system to the NAS. That's as fast as that PC can read it from the drive and send it. The right half of the graph I started the copy again, plus added another file copy to the NAS from a second PC. The second PC only added ~260Gbs, it's slow and that's all it will do (IDE drives and PCI NIC), but the total throughput increased to ~680Gbs. You can see the first write start at ~575, then the second write from the slower PC starts and it jumps to ~680Gbs. The first one finishes up and it drops back to ~260 as the slow one finishes. I can copy a 3gig file to the NAS in 52~53 seconds with the faster PC. View attachment 218690 Simultaneous write and read The second graph shows a simultaneous write and read. The slower PC is copying a file to the NAS, the faster PC is copying a file from the NAS. That is the fastest write speed I can get with that PC and the fastest read speed with the slow PC. So those speeds are actually PC limitations rather than NAS, but I wanted to see it with good traffic flow in both directions. View attachment 218688 The Hardware The highest CPU load has had peaks to 12% (averages 6~8%) and temp is running 18C while it's working. Max RAM used has been 9% of 4gigs. If I let it sit for 20 minutes it idles down. All the drives stop and CPU drops to 900mhz while it waits. My Kill-a-Watt meter shows it's only drawing 38 watts when idle. The 3 - 140mm fans that came in the case are a big part of that, I need to slow them down. Anything this fast has got to be illegal, and I haven't even starting tweaking yet. I'm going to experiment with dual NIC's later using link aggregation to increase throughput and provide failover, my problem is going to be rounding up enough PC's to put a good load on it. So that's my latest FreeNAS box, and I thought some of you might be interested in hearing about the build and results so far.