Saturday, July 31, 2010

Toyota Celica Gallery 2010

Toyota started out as a division of Toyoda Automatic Loom Works, a company that made textile looms. I think the new Scion series made by Toyota may be inspired by the appearance of these textile looms. Seriously though, Toyota has been around since 1933, and now they are among the most reliable cars in the world. Toyotas tend to be fairly inexpensive, making them popular with younger buyers who want something they can drive fast and modify to their liking. It is a little known fact in the tuner world that adding a massive spoiler to a Toyota will increase the top speed of the car by 200 mph and lower the 1/4 mile time to under 8 seconds. Each sticker also adds 50 hp

toyota celica
toyota celica
toyota celica
toyota celica
toyota celica

2010 Nissan Altima New Cars

The 2010 Nissan Altima Hybrid is the first attempt to break into the hybrid market from Nissan. With a 244.8v NiMH battery pack designed by Panasonic, the Altima is a hodge podge of automotive ingredients that range from Ford to Toyota. The exterior is nicely packaged and yet traditional in a specifically Nissan way.

2010 nissan altima
2010 nissan altima
2010 nissan altima
2010 nissan altima
2010 nissan altima

2009 Nissan Recalls

The Jeep Patriot is an terrific vehicle, but just one repair can cost you thousands of dollars. The best way to protect yourself from expensive Jeep Patriot repairs to get a Jeep Extended Warranty for your vehicle. A Jeep Patriot Extended Warranty will save you hundreds or even thousands of dollars the next time your automobile needs repairs. Learn more about Jeep Extended Warranty - Jeep Patriot Extended Warranty

nissan recalls
nissan recalls
nissan recalls
nissan recalls
nissan recalls

Thursday, July 29, 2010

Toyota Land Cruiser 2009

the Japanese government asked Toyota to produce a light truck for the Japan military campaign. Toyota developed a 1/2 ton prototype called the AK10 in 1942. The AK10 was built using reverse-engineering from the Bantam GP. There are no known surviving photographs of the AK10. The only known pictorial representations are some rough sketches. The truck featured an upright front grille, flat front wheel arches that angled down and back like the FJ40, headlights mounted above the wheel arches on either side of the radiator and a folding windshield.
The AK10 used the 2259 cc, 4-cylinder Type C engine from the Toyota Model AE sedan with a three-speed manual transmission and two-speed transfer gearbox connected to it. There is no mechanical relationship between the AK10 and the postwar Toyota "Jeep" BJ. Most of the AK10's were not actively used (unlike the U.S. Jeep) and there are almost no photographs of it in the battlefield.

toyota land cruiser
toyota land cruiser
toyota land cruiser
toyota land cruiser
toyota land cruiser

2008 Nissan 240SX

The first generation of the 240SX can be divided into two distinct versions. These are commonly referred to as Zenki and Chūki which are the Japanese words for m"early" and "middle," respectively. Each of these variants came in two distinct body styles: hatchback, which was offered in both base and SE trim, and coupe, which was offered in base, LE and SE trim levels. Both styles shared the same front bodywork as the Japanese-market Nissan 180SX, featuring the sloping front with retracting headlights. This bodywork distinguishes the coupe model from its Japanese-market counterpart, the Silvia, which featured fixed headlights. Both styles in all markets share the same chassis, and with few exceptions, most components and features are identical.

nissan 240sx
nissan 240sx
nissan 240sx
nissan 240sx
nissan 240sx

Nissan G35 Recall 2010

2010 ... WASHINGTON -- Nissan Motor Co. said Tuesday it will recall nearly 135000 Infiniti G35 sedans and coupes to address a problem that could lead .

nissan g35 recall
nissan g35 recall
nissan g35 recall
nissan g35 recall
nissan g35 recall

Toyota Supra Twin Turbo Sports

The Supra also traces much of its roots back to the Toyota 2000GT with the main instance being its engine. The first three generations were offered with a direct descendant to the Toyota Crown's and 2000GT's M engine. All four generations of Supra produced have an inline 6-cylinder engine. Interior aspects were also similar.

Along with this name and car Toyota also included its own logo for the Supra. It is derived from the original Celica logo, being blue instead of orange. This logo was used until January 1986, when the MKIII Supra was introduced. The new logo was similar in size, with orange writing on a red background, but without the dragon design. That logo, in turn, was on Supras until 1991 when Toyota switched to its current oval company logo.

toyota supra twin turbo
toyota supra twin turbo
toyota supra twin turbo
toyota supra twin turbo
toyota supra twin turbo

Nissan Leaf New Wheels

The announced price in Japan starts at ¥3.76 million (approximately US$40,500), US$32,780 in the United States, £28,350 in the United Kingdom, and under €34,995 in the other three European countries where it will be launched first; these prices include the price of the battery package, and almost all countries have applicable tax incentives.

Nissan Leaf
Nissan Leaf
Nissan Leaf
Nissan Leaf
Nissan Leaf

Tuesday, July 27, 2010

Multiprotocol Label Switching (MPLS)


a mechanism in high-performance telecommunications networks which directs and carries data from one network node to the next. MPLS makes it easy to create "virtual links" between distant nodes. It can encapsulate packets of various network protocols.
MPLS is a highly scalable, protocol agnostic, data-carrying mechanism. In an MPLS network, data packets are assigned labels. Packet-forwarding decisions are made solely on the contents of this label, without the need to examine the packet itself. This allows one to create end-to-end circuits across any type of transport medium, using any protocol. The primary benefit is to eliminate dependence on a particular Data Link Layer technology, such as ATM, frame relay, SONET or Ethernet, and eliminate the need for multiple Layer 2 networks to satisfy different types of traffic. MPLS belongs to the family of packet-switched networks.
MPLS operates at an OSI Model layer that is generally considered to lie between traditional definitions of Layer 2 (Data Link Layer) and Layer 3 (Network Layer), and thus is often referred to as a "Layer 2.5" protocol. It was designed to provide a unified data-carrying service for both circuit-based clients and packet-switching clients which provide a datagram service model. It can be used to carry many different kinds of traffic, including IP packets, as well as native ATM, SONET, and Ethernet frames.
A number of different technologies were previously deployed with essentially identical goals, such as frame relay and ATM. MPLS technologies have evolved with the strengths and weaknesses of ATM in mind. Many network engineers agree that ATM should be replaced with a protocol that requires less overhead, while providing connection-oriented services for variable-length frames. MPLS is currently replacing some of these technologies in the marketplace. It is highly possible that MPLS will completely replace these technologies in the future, thus aligning these technologies with current and future technology needs.
In particular, MPLS dispenses with the cell-switching and signaling-protocol baggage of ATM. MPLS recognizes that small ATM cells are not needed in the core of modern networks, since modern optical networks (as of 2008) are so fast (at 40 Gbit/s and beyond) that even full-length 1500 byte packets do not incur significant real-time queuing delays (the need to reduce such delays — e.g., to support voice traffic — was the motivation for the cell nature of ATM).
At the same time, MPLS attempts to preserve the traffic engineering and out-of-band control that made frame relay and ATM attractive for deploying large-scale networks.
While the traffic management benefits of migrating to MPLS are quite valuable (better reliability, increased performance), there is a significant loss of visibility and access into the MPLS cloud for IT departments.

Friday, July 23, 2010

Physical Layout


A typical server rack, commonly seen in colocation.
A data center can occupy one room of a building, one or more floors, or an entire building. Most of the equipment is often in the form of servers mounted in 19 inch rack cabinets, which are usually placed in single rows forming corridors between them. This allows people access to the front and rear of each cabinet. Servers differ greatly in size from 1U servers to large freestanding storage silos which occupy many tiles on the floor. Some equipment such as mainframe computers and storage devices are often as big as the racks themselves, and are placed alongside them. Very large data centers may use shipping containers packed with 1,000 or more servers each[6]; when repairs or upgrades are needed, whole containers are replaced (rather than repairing individual servers).[7]
Local building codes may govern the minimum ceiling heights.


A bank of batteries in a large data center, used to provide power until diesel generators can start.
The physical environment of a data center is rigorously controlled:
• Air conditioning is used to control the temperature and humidity in the data center. ASHRAE's "Thermal Guidelines for Data Processing Environments"[8] recommends a temperature range of 16–24 °C (61–75 °F) and humidity range of 40–55% with a maximum dew point of 15°C as optimal for data center conditions.[9] The electrical power used heats the air in the data center. Unless the heat is removed, the ambient temperature will rise, resulting in electronic equipment malfunction. By controlling the air temperature, the server components at the board level are kept within the manufacturer's specified temperature/humidity range. Air conditioning systems help control humidity by cooling the return space air below the dew point. Too much humidity, and water may begin to condense on internal components. In case of a dry atmosphere, ancillary humidification systems may add water vapor if the humidity is too low, which can result in static electricity discharge problems which may damage components. Subterranean data centers may keep computer equipment cool while expending less energy than conventional designs.
• Modern data centers try to use economizer cooling, where they use outside air to keep the data center cool. Washington state now has a few data centers that cool all of the servers using outside air 11 months out of the year. They do not use chillers/air conditioners, which creates potential energy savings in the millions.[10].
• Backup power consists of one or more uninterruptible power supplies and/or diesel generators.
• To prevent single points of failure, all elements of the electrical systems, including backup system, are typically fully duplicated, and critical servers are connected to both the "A-side" and "B-side" power feeds. This arrangement is often made to achieve N+1 Redundancy in the systems. Static switches are sometimes used to ensure instantaneous switchover from one supply to the other in the event of a power failure.
• Data centers typically have raised flooring made up of 60 cm (2 ft) removable square tiles. The trend is towards 80–100 cm (31–39 in) void to cater for better and uniform air distribution. These provide a plenum for air to circulate below the floor, as part of the air conditioning system, as well as providing space for power cabling. Data cabling is typically routed through overhead cable trays in modern data centers. But some are still recommending under raised floor cabling for security reasons and to consider the addition of cooling systems above the racks in case this enhancement is necessary. Smaller/less expensive data centers without raised flooring may use anti-static tiles for a flooring surface. Computer cabinets are often organized into a hot aisle arrangement to maximize airflow efficiency.
• Data centers feature fire protection systems, including passive and active design elements, as well as implementation of fire prevention programs in operations. Smoke detectors are usually installed to provide early warning of a developing fire by detecting particles generated by smoldering components prior to the development of flame. This allows investigation, interruption of power, and manual fire suppression using hand held fire extinguishers before the fire grows to a large size. A fire sprinkler system is often provided to control a full scale fire if it develops. Fire sprinklers require 18 in (46 cm) of clearance (free of cable trays, etc.) below the sprinklers. Clean agent fire suppression gaseous systems are sometimes installed to suppress a fire earlier than the fire sprinkler system. Passive fire protection elements include the installation of fire walls around the data center, so a fire can be restricted to a portion of the facility for a limited time in the event of the failure of the active fire protection systems, or if they are not installed. For critical facilities these firewalls are often insufficient to protect heat-sensitive electronic equipment, however, because conventional firewall construction is only rated for flame penetration time, not heat penetration. There are also deficiencies in the protection of vulnerable entry points into the server room, such as cable penetrations, coolant line penetrations and air ducts. For mission critical data centers fireproof vaults with a Class 125 rating are necessary to meet NFPA 75[11] standards.
• Physical security also plays a large role with data centers. Physical access to the site is usually restricted to selected personnel, with controls including bollards and mantraps.[12] Video camera surveillance and permanent security guards are almost always present if the data center is large or contains sensitive information on any of the systems within. The use of finger print recognition man traps is starting to be commonplace.

source : http://en.wikipedia.org/wiki/Data_center

Wednesday, July 21, 2010

Totoya new cars

Early Thursday morning in Tokyo, Japan, Toyota officials said that the automaker was considering "some kind of measure" that could include the recall of 270,000 vehicles worldwide involving eight models of Toyota and Lexus vehicles.

As of Thursday morning, however, Toyota had not alerted US safety regulators of a recall of Toyota and Lexus models for possible engine stalling while driving.

No accidents or injuries have been reported in relation to the engine problems.

Toyota said that decisions by government regulators would determine if a recall was necessary in this instance for the eight models, which include the Lexus LS460 and Toyota Crown. The models involved have 3.6-liter and 4.6-liter engines.

This engine issue is just the latest in a series of safety issues that have been plaguing the world's top automaker since last September. The biggest issue to date has been one involving potential acceleration. To date, 7.3 million vehicles have been recalled in Toyota's largest market - the United States