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BladeCenter processor blades, I/O expansion adapters, and units

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13 Author(s)
Hughes, J.E. ; IBM Systems and Technology Group, 3039 Cornwallis Road, Research Triangle Park, North Carolina 27709, USA ; Scollard, M.L. ; Land, R. ; Parsonese, J.
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This paper describes the electrical architecture and design of the IBM eServer™ BladeCenter® processor blades, expansion blades, and input/output (I/O) expansion adapters and units. The processor blades are independent, general-purpose servers containing processors, chipsets, main memory, hard drives, network interface controllers, power input control circuitry, and local systems management. The blade architecture is robust and flexible enough to enable the design of general-purpose Intel-processor-based two-way and four-way blades, IBM POWER™-processor-based blades, blades based on AMD Opteron™ processors, and common expansion blades. In addition, the processor blades, expansion adapters, and units use a serialized-deserialized (SerDes) interface for the internal I/O fabrics, thus giving blades the flexibility to support virtually any I/O protocol that supports SerDes. Support for I/O fabrics beyond the base Gigabit Ethernet is accomplished via optional I/O expansion adapters for Fibre Channel, Myricom Myrinet®, InfiniBand®, or additional Gigabit Ethernet. Additional storage or peripheral component interface capability can be added to the processor blades via expansion blades.

Note: The Institute of Electrical and Electronics Engineers, Incorporated is distributing this Article with permission of the International Business Machines Corporation (IBM) who is the exclusive owner. The recipient of this Article may not assign, sublicense, lease, rent or otherwise transfer, reproduce, prepare derivative works, publicly display or perform, or distribute the Article.  

Published in:

IBM Journal of Research and Development  (Volume:49 ,  Issue: 6 )