Doing head-to-head comparisons of blade and rack-mount servers is more difficult than it would initially seem. Part of this complexity is found in the configuration options for both server systems and the difficulty in finding truly comparable systems. This note, and its associated cost comparison calculator, provides the tools to select equivalent systems and to perform a cost comparison. Items that must be considered include:
- Selecting equivalent systems for comparison.
- Configuring matching hardware, including processors, RAM, storage, and networking capabilities.
- Evaluating indirect costs such as cabling, external infrastructure, and energy use.
By selecting the right systems for the comparison, IT staff can determine whether blade servers will save the enterprise money.