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A blade server is essentially a computer on a motherboard, including: one or more processors, memory, storage, and network connections. The idea behind blade servers is that many such blades can be added in space-saving racks, thus providing compact and powerful computing solutions that are less expensive than traditional solutions (such as mainframes).
Blade servers are ideal for specific purposes such as web hosting and cluster computing. Individual blades are typically hot-swappable.
Although blade server technology allows for open, cross-vendor solutions, for the time being, users experience fewer problems when keeping with blades, racks and blade management tools from the same vendor. Eventual standardisation of the technology will hopefully result in more choices for consumers; increasing numbers of third-party software vendors are now entering this growing field.
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