One of the primary ways to simplify IT infrastructure – and save in the process – is through server consolidation. Blade technology is a good way to approach this, but many IT managers are reluctant to take the blade route. There are several myths about blades that create the impression that blades aren’t the best choice for consolidation. In a recent E-Guide on Blade Server Trends sponsored by Dell and Intel, virtualization expert Barb Goldworm attacked these myths.
Her comments are worth reading:
Because blade systems require an up-front purchase of a blade chassis, one misconception is that blades are a more expensive solution than rack servers. In fact, if you are only implementing one or two servers in a single location, this is true. However, if you are implementing four, five or more servers, the total cost per server can actually be lower, because of the shared components within the blade chassis. Just calculating the numbers on hardware alone (without counting other savings such as power, cabling, and management), the costs for a blade server can be lower than a comparable rack server.
One blade customer did a very basic comparison using Dell blades, calculating the cost per server based on the blade cost plus 1/10 of the chassis cost. He estimates the blades saved him 20% over comparable rack servers. While these numbers vary by vendor and configuration, the bottom line is that unless the chassis is mostly empty, blades cost less.
Stay tuned to the blog next week for myth #2.