Originally Posted by
zicoz 
My current setup:
Main chassis:
oChassis: Norco RPC-4020 (about $300 now but I had it from my previous file server)
oMotherboard: SuperMicro X8ST3-F (about $350)
oPSU: Corsair AX 850 (about $150)
oCPU: Intel Xeon E5506 (about $250)
oMemory: 4GB Corsair (about $50)
oSAS-controller: IBM ServerRaid M1015 x 3 (about $80 a piece)
oAlso the motherboard has 2x4 port sas connectors on it with a LSI 1068e chip.
o1x SFF-8087 to SFF-8088 PCI bracket with 2 ports similar to this. But different brand. (about $50)
oOS Drive: OCZ Agility 3 60GB SSD (about $100 but I had it already)
oStorage: Samsung 2TB drives x 20
Total: about $1500 + storage
Expander chassis:
oChassis: Norco RPC-4220 (about $350)
oPSU: Ace Outburst 550W (about $100)
oPower controller: Supermicro Storage On/Off PWR Control Board (about $50)
oSAS expander: Intel RES2SV240 (about $250)
o1x SFF-8087 to SFF-8088 PCI-bracket with one port. (about $30)
oStorage: Samsung 2TB drives x 8
Total: about $780 + storage
The main chassis is connected to expander chassis with a SFF-8088 cable.
Software:
oOS: Windows Home Server 2k11
oDrive pooling: Drive Bender
With this setup I now basically have room for as much storage that 40 HDDs can give me, if I need to expand beyond that I simply build a duplicate of the Expander Chassis and connect that to my Main Server. As of today the Main Server has 1 open SFF-8088 port, but all I need to do is to add another M1015 card and a SFF8087-to-SFF8088 bracket to get another 2 ports on it for a total of 4 Expander Chassis.
If I were building today the only thing I would replace is the motherboard/CPU as these are not current generation hardware. I'd og for either a Sandy Bridge duo, or the New Opteron 3200 that'll be out soon.
When it comes to Storage backup, I don't like things like RAID or ZFS unless it's a Raid1-like setup. If you lose 2 drives in a Raid5 you likely lose all your data, if you lose one drive in a storagepool you only lose the data on that drive and nothing else. My solution is to have a 1-1 backup offsite for which I use my old drives.