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Physical Advantages
Many of the benefits blade servers deliver are enabled by their unique physical design. By sharing resources such as power cooling, and cabling through an integrated enclosure, blade systems eliminate a great deal of the complexity and overlap that can often plague the typical server stack.
Shared power: Moving power supplies out of individual servers and into a shared enclosure reduces power consumption and provides higher availability for the entire blade infrastructure. It can also reduce the number of individual power cables required for the server and networking system.
Reduced cable complexity: Because blade-based server systems provide network connectivity within the shared enclosure, cabling needs are significantly reduced. Blade servers typically use 87% less cabling than rack-based servers, resulting in significant cost savings. For customers connecting their blade servers to a SAN, the savings can be even greater, due to the reduced cabling and switching costs of the integrated blade storage infrastructure. This also simplifies any future changes, as the enclosure needs to be wired only once during setup and does not require additional wiring for each server added to the enclosure.
No keyboard, video, and mouse (KVM) requirement: Because blade servers are managed through a browser-based graphical user interface (GUI), they eliminate the need for individual keyboard, video, and mouse (KVM) cables and switches.
Size and density: Integrated blade solutions are smaller and take up less square footage than a comparable rack solution - helping to conserve valuable IT floor space. Plus, the integrated design also provides greater density-so blade servers are smaller and lighter than rack-mount servers-making them easier to deploy and service.
For more detailed analysis of the cost benefits of blade servers, download: HP BladeSystem: Building the Business Case for Adopting the HP BladeSystem in the Data Centre.
