blade server


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blade server

A server architecture that houses multiple server modules ("blades") in a single chassis. It is widely used in datacenters to save space and improve system management. Either self-standing or rack mounted, the chassis provides the power supply, and each blade has its own CPU, RAM and storage. Redundant power supplies may be an option. Blade servers generally provide their own management systems and may include a network or storage switch. Contrast with blade PC.

Diskless Blades
With enterprise-class blade servers, storage may be external, and the blades are diskless. This approach allows for more efficient failover because applications are not tied to specific hardware and a particular instance of the operating system. The blades are anonymous and interchangeable. In a hyperconverged datacenter architecture, the blade servers each have local storage (see hyperconverged infrastructure). See blade and processor area network.

Disk-Based Blades
Blade servers are widely used in datacenters to save space and ease systems management. This earlier ProLiant unit from HP has redundant power supplies and holds 20 blades in 3U of rack space. The exposed blade on the left is a complete server with hard disk. (Image courtesy of Hewlett-Packard Company.)








Enterprise-Class Blade Server
The BladeFrame from Egenera supports up to 24 blades, each with four Xeon processors. The entire system is managed with Egenera's PAN Manager software via a Web browser. In this picture, one blade is being replaced. (Image courtesy of Egenera, Inc., www.egenera.com)
References in periodicals archive ?
The consolidated design makes the PRIMERGY BX400 more affordable than other blade servers on the market, while saving office space.
According to a recent report by Stamford, Conn.-based Gartner Research, blade servers are the fastest growing segment of the server market.
McAfee's Content Security Blade Server provides a fully extensible content security platform offering E-mail security, Web security, URL filtering, anti-spam, anti-phishing, and safe searching stopping all of today's growing malware threats.
Running clinical applications on a foundation of blade servers creates unique power, cooling and distribution needs that are only solved through innovative new approaches to data center design.
The deal will open a new route to market for Brocade, selling into what is a small but growing market for blade server racks.
Blade servers have been touted as replacements for the racks of machines and tangles of cable now used as standard by many large corporations.
According to Dell, the PowerEdge M420 is the world's only quarter height two-socket blade server, offering extreme computational density, performance and efficiency.
Sun also announced the Sun Netra CP3250 ATCA blade server, a new Intel Xeon blade server built for the telecomms market.
Dell Middle East has announced that Higher Colleges of Technology (HCT) is the first customer in the Middle East to acquire and install PowerEdgeao M-Series blade server solution, the latest in server technologies from Dell.
Broadcom addresses this IT challenge by demonstrating the industry's first end-to-end 2.5 Gigabit infrastructure solution optimized specifically for blade server applications.
A rugged version of the current generation PowerPC blade server, PowerNode5 is a 6U VME clone of the IBM JS20 blade design, providing full binary compatibility with JS20 blades servers, in a form factor adapted to embedded system requirements.