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Availability Advantages
In traditional rack-mounted server architectures, increasing availability means buying additional hardware for redundancy, as well as all the connections and external networking components to support the systems-all of which are extra costs. With blade server systems, however, a good deal of redundancy is built in.
These systems incorporate features such as dual VLAN switches, redundant power subsystems, redundant backplane data paths, redundant storage and storage interconnects, redundant fans for cooling, and hot-swap server blade replacement to automatically deliver higher levels of availability and simplify maintenance. And, in the event of planned or unplanned downtime - such as the need to upgrade memory, replace a processor, or replace a server - individual blade servers can easily be removed from the enclosure, then upgraded, repaired, or replaced - without re-cabling and without disturbing the rest of the system, thus reducing downtime even further.
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.
