We use AFS file sharing and Condor batch computing software to implement a high throughput Linux computing environment on diverse hardware. Opportunistic computing resources from the Grid Laboratory of Wisconsin and Computer Science Department provide the potential for utilizating a total of over 2900 Linux CPUs.

Sun Solaris and Linux computers are used to provide domain name service, backups, email, spam filtering, centralized printing and web hosting. We also have a small cluster of HP workstations running HP-UX for CAD work.

Our Grid Network is implemented using a Cisco Catalyst 3750G-16TD switch stack (10 Gbps uplink to the Internet) and our Staff Network is implemented using a Cisco Catalyst 4503 switch (2 Gbps uplink) at the core, with gigabit ethernet over fiber trunks fanning out to Cisco Catalyst 3750 switches.

Our older compute servers are 1U rack-mount systems with Supermicro or Intel motherboards, dual Xeon CPUs and gigabit ethernet. Our newer generations of compute servers are 1U rack-mount 1.8 GHz dual/dual (four CPU) Opteron based Supermicro systems with gigabit ethernet.

Our storage servers are dual Xeon CPU based systems with 5 TB Apple Xserve RAIDs attached via Apple's PCI-X fibre channel card and 80 systems with 1 TB of ordinary ATA100 disk.