Our test bed consisted of four servers: an HP ML370G5 with dual Xeon 3.0GHz, 6GB RAM and dual gigabit Ethernet; an HP DL360G4p 2xXeon 3.4,2GB RAM and dual gigabit Ethernet ports; and two SuperMicro-based system each with one Xeon 3.4GHz, 2GB RAM and dual gigabit Ethernet ports. All servers running Windows 2003 Server. All were connected to a Cisco SLM2048 gigabit Ethernet switch, as were the Sun Storage 7410 controllers.Three of the four 7410 iSCSI ports were aggregated together in an LACP group.rnTo measure the Sun System 7410 performance, we used IOmeter, a popular I/O subsystem measurement and characterization tool for single and clustered systems that supplies results in both MB per second and I/O per second.rnThere were four sets of workloads running across the servers, each worker simulated the storage traffic typical of an Exchange 2003 server, an Exchange 2007 server, a file server and a Web server. Each of the worker processes had an I/O queue of 32 entries, ensuring that the lometer systems were keeping plenty of I/O ready to go. We believe this workload at the level we configured far exceeds what a typical server would present.
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