Server Blade

Unlike servers Tower, an office that rack servers use it Traditionally come from 1U, 2U, 3U, 4U or 6U racks installed. Numbers Give names to rack mounted servers just specify The number of contact they occupy the shelves. Occupy 1U server 1U single bay, the two occupy 2U and 4U occupy four, Time from the standard size is up to 42U;

style = "; text-align: right; direction: ltr"> 1U servers are the preferred format by For hosting companies and data that are very compact (Only 4.4 cm high), which lets you install multiple Each rack of servers. The main limitations of the format That the limitations of ventilation (because of the internal space Small), undermine the use of processors with energy High and the need to use fans hampers Plus, who all run with another. Besides the Basic components, all available space to install 2 or 4 hard drives of 3.5 "(according to an order of elements Other) expansion cards one is installed horizontally, with Help Riser.

So There 2U servers. They use "regular" power sources Hampers and eventually a little cheaper. Space Makes a big internal format more suitable for servers 2U with two or more processors, or processors use consumption High. Height is not enough upright to install Expansion cards, such as tower servers, but you can Use Riser (as in 1U), or use the cards Half Height (bottom plates, has a half height of the plates Normal).

Finally, We have the big servers, which use the 3U or 4U. There 6U servers, but are rare: This format is used in Rule by the disk arrays chassis for blade servers (See categories below). 3U server with more or completely Eliminates the problems with space, which allows expansion cards Be fit vertically in a large number of hard drives Installed removable bays, but causes a server to capture Details of rack space, which increases the cost to host Data center, where you pay additional fees Per pen.

More format It became increasingly popular blade servers (blade Comes from the word "blade", pointing to a template), Another ingenious idea to increase the density servers Sharing common components to enable data center, Like power supplies and optical disks.

style = "; text-align: right; direction: ltr"> The idea is that instead of 1U servers with 10, With 10 sources (or 20, if the sources were used more), 20 Network cables (each server typically uses two cables, One for other network management or surplus), as well as Cables, KVM cables are used, and so on, you Can use one chassis, with an equal number of servers Blade.

Each server blade He put up with an independent processor, memory, card Network disks. Its small size, blade servers use Usually low power processors hard drives 2.5 ". At first, it was widespread use of processors from Transmeta and through, but they eventually almost completely Be replaced by Intel & AMD processors cores Multiple that much faster, but still relatively Economy. In the case of hard drives, the discs 2.5 "are favorites for providing access to lower Times (but lose respect to the rate), plus Electricity consumption.

Not every system of thought are created equally blade. So if you plan to jump battle blade you need Find the best system for blade case Your. Check the below comparisons to help you compare Among the best of them:

HP Blade System versus IBM blade system

HP Blade system, compared with Dell Blade System

Blade server venting