Lower power consumption. It is obvious that a system consumes less energy than two. Reducing the co

Virtualization appeared motivated to do my desire to reduce the number of computers in the house. I have long been a computer that is Wi-Fi access point, FTP server, a torrent rocking and stuff. All the work on it is conducted under the control of OC Linux. After the purchase of hardware and software PC-3000 UDMA had to collect another computer running Windows. PC-3000 equipment is good, but unfortunately in the direction of Linux developers do not even look. I decided to combine the two systems in one computer using virtualization, while Linux will be used as the main system, and working with PC-3000 will be conducted from the guest virtual machine with Windows. The situation is complicated by the fact that such a union simple hardware virtualization VT-x (Intel VT or AMD-v) is available on a variety of processors does not suit me. For such a system required more advanced hardware virtualization, virtualization O, called VT-d. This type of virtualization allows you to traverse any device plugged into the PCI or PCI-e bus to the guest virtual machine.
Lower power consumption. It is obvious that a system consumes less energy than two. Reducing the cost. This advantage is important for those who are only going to collect system for repair or thinks about the Platform Update collected for repair Increased reliability. The server is usually equipped with an uninterruptible power supply that will continue to work during a short power failure. The ability to conveniently scale the disk space. When you save the data from the virtual machine using Samba or FTP service, increase disk space for the virtual machine will be completely transparent. Ease of operation. No binding to the workplace. Connect the drive to which you want to work you can connect remotely to the virtual machine to continue working with the drive. At the same time, you can restart the virtual machine, turn off, turn on again knowing that even if there are serious problems at boot virtual machines leifheit they can be removed remotely. For me as an obvious advantage is the experience of working with virtualization technologies resulting leifheit in the construction of such a system.
Creating platforms start with the selection of equipment. To use virtualization O VT-d need appropriate leifheit support from the motherboard, BIOS (or EFI) and the motherboard leifheit implementation of VT-d technology in the processor.
Let's start with the selection board. VT-d technology guarantee maintained line of chipsets series "Q", from the earliest models leifheit Q35 chipset and ending leifheit with the modern model of the moment chipset Q77. This narrows the search required the motherboard, all we need is to see offers of motherboards on the market with the data types of the chipset. I chose the model from ASUS P8Q77-M, mATX format. Although a little expensive, but high quality, modern motherboards. Your choice may be different from mine, there's someone which manufacturer but the soul.
Check VT-d support at the BIOS level or EFI. There is quite simple, with motherboards are the operating instructions that can be downloaded from the manufacturer's website. Download the instructions and begin to look for in the area of the section "Advanced menu" line of "Intel Virtualization Technology". This line means that there is support for technology VT-x and in addition, with the support VT-d technology for this line have to go line "Intel TXT (LT) Support" asserting the guaranteed support of the technology necessary for us Intel VT-d (Virtualization Technology for Directed I / O, virtualization I / O).
To select the required option use the processor CPU of certain leifheit criteria leifheit for the site of Intel. The link represented Core i5 processors with VT-d with a TDP of 45 watts, and (remove the options for mobile systems). If possible, purchase leifheit a processor leifheit that goes directly to the fan, in which case the seller in the price list next to the name of the processor goes mark "BOX". Fan Comes with high-quality and reasonably quiet.
It is desirable to ensure that the selected processor is supported by the selected motherboard. Typically a table of supported processors in the website, look for the matching name of the processor and motherboard BIOS version to which this support is announced. If necessary, update the BIOS to the latest version.
After assembling the equipment is installed the operating system. I have long enjoyed CentOS, so the story of the configuration software will guide the example of CentOS 6.3. Upon completion of the installation of the system look if any virtualization components. In the absence of the required components Wirth