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OCZ’s Agility 2 120GB is a new generation of drive based on the SandForce SF-1200 controller. Unlike the OCZ Vertex LE and OCZ Vertex 2 drives, the Agility 2′s SandForce controller has an IOP limit artificially limited in firmware. With that being said, it is also cheaper than the Vertex 2 120GB and is still a very fast SSD, especially with compressible loads.

The short story of the SandForce controller is that it uses an internal encryption/ compression algorithm to write data to NAND faster than other drives. The SandForce based Agility 2 120GB is therefore fairly fast with compressed workloads (i.e. pictures, music files, zip files, ISOs, and etc) and much faster with compressible workloads such as office documents. Another major storyline is that SandForce is a fairly new player and the controllers are of unknown reliability. Finally, originally SandForce reserved much more space on drives in this capacity range for use in wear leveling, cache and etc. OCZ Agility 2 and Vertex 2 SandForce drives were originally 100GB but after being criticized for mediocre cost per GB and with little performance penalty moving from 28GB reserved (old drives were 100GB usable 28GB reserved) to 8GB reserved (new drives are 120GB usable 8GB reserved), the choice to enable the extra capacity was clear.

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My main server, the Big WHS now houses over 60TB of storage, runs multiple VM’s, and has over 10 Gigabit NICs. At the heart of this server, is a Supermicro X8ST3-F. It was not the first motherboard I tried in the server, as I originally tried using an ASUS P6T7 WS Supercomputer in the Big WHS, but it has been running solidly since its first installation. Aside from its stability, it also comes with many PCIe slots, an onboard LSI 1068e based 8 port SATA/ SAS controller, dual Intel Gigabit NICs, onboard video, and IPMI 2.0 with KVM over IP.

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The Big WHS was originally supposed to house approximately 30TB of storage when the plans were first detailed on an Excel spreadsheet BOM in December 2009. This was a big upgrade to my first DIY Windows Home Server box that had well under 20TB. About five months later, the storage capacity has crested 60TB, with further room to expand. The Big WHS now spans two 4U Norco cases (using a total of 8U of rackspace and another 4U chassis is in the works) has over 60TB of storage, and requires well over a dozen ports on the gigabit switch.

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If one browses this site they will quickly see that I am a fan of Hyper-V virtualization and also Windows Home Server. On April 26, 2010, Microsoft released the public preview of the long awaited Windows Home Server V2 codenamed VAIL. Of course, I did have a test system lying around, but the WHS V2 code base is supposed to be Windows Server 2008 R2 which is why it requires a 64-bit CPU. Now, I could have installed the VAIL preview onto a physical machine, but there are probably editors at 30 sites doing that right now. So how about something interesting, and more appropriate for software labeled beta and preview, a Hyper-V installation!

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In previous articles we have shown how to set up a basic Hyper-V virtual machine that works with FreeBSD and FreeNAS as well as how to configure the Hyper-V VM and boot FreeNAS in it. The next step of course is to install FreeNAS to a vhd, so it no longer needs to run off of the LiveCD. This is primarily important so you can configure FreeNAS and save that configuration through reboots. Also, as FreeNAS seems to only work with drives attached to the IDE controllers, installing FreeNAS to a vhd allows one to free up one IDE channel for another drive (by removing the default DVD drive).

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