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Blade server shootout: Dell vs. HP vs. Sun

12.02.2007
Dawn broke over Diamondhead on Oahu as I shrugged off my jetlag and drove to the Advanced Network Computing Lab at the University of Hawaii. It was a beautiful Saturday morning, but there was to be no lying on the beach today. By the time 6 p.m. rolled around, Brian Chee and I had uncrated half a dozen huge shipping containers; eaten more than our share of sushi; installed three out of four blade chassis; broken four drill bits, one window pane, and a coffee press; and Brian's eyebrow had finally stopped bleeding from a brief but violent altercation with the business end of L6-20 plug.

All in all, a good day. This series of events marked the beginning of the InfoWorld blade server shootout. Three of the Big Four blade server vendors -- Dell, HP, and Sun (minus no-show IBM) -- presented their latest and greatest blade server products for our careful inspection. As the smoke cleared at the end of the week, it became clear that the new crop of blade servers is a giant step up from the previous generation.

The test plan was actually quite simple: We conducted performance tests using the SPEChpc benchmarking suite and examined server management tools. Time was short, so each solution got only a single day to strut its stuff, but the vendors had more than a month prior to the test to prepare their wares. This included preparing the blades for the SPEChpc tests and installing any accompanying software.

We chose the SPEChpc tests not only because we're interested in the blades' HPC performance, but also because they would give each solution a thorough workout, extending to CPU, memory, and interconnect performance. We allowed vendors their choice of hardware, including the type of interconnect to be used, with the only requirements being that the SPEChpc tests were limited to 16 sockets and 32GB of RAM. Each socket might hold a dual- or quad-core CPU, and each blade might have two or four CPUs, but otherwise, the goal was to see the best of the best.

Big Blue's big blank

Test week started with a bang -- or maybe a fizzle, depending on your point of view. At the very last minute, and after months of preparation, IBM pulled a no-show.