The D元80 and Xenon R4550 tussled for second position in the CPU benchmarks (see page 33). The D元80 and one of the Xenon servers sported the second highest performing Intel CPU, the X5560, which is just 0.13GHz slower than the HP BL490c blades X5570. Case cooling is provided by a row of five hot swap fans that run the full width of the case, however, if one of the two central fans should fail the airflow to one of the two CPUs would be substantially diminished and could result in overheating of the CPU in question. There are two hot swap 750W power supplies that should be quite adequate, even considering the upgrade potential of the D元80. The riser assembly included two sets of two horizontal PCIe x4 slots for expansion and as mentioned, only one was occupied. The D元80 supports mirror and lock-step memory configurations thanks to its total of 18 DIMM slots which are arranged nine per CPU and three slots per channel. The CPU heat-sinks are massive and well built. It also makes updating RAM or PCIe cards more cumbersome than other servers, although any of the six cooling fans can be accessed without removing any covers should one fail. It’s not as elegant as many of the clip out riser assemblies but it is certainly more robust. The riser assembly is held in place by five screws and a tool to unfasten them is provided on the back of the server.
Removing the case cover reveals far less than any other server tested because the entire motherboard is covered by an airflow shroud and riser card assembly.
At the rear, the D元80 sports four gigabit LAN ports as well as an integrated lights out (ILO) 2 management port as standard. The front panel also includes quite a detailed array of status LEDs for the health and activity of the cooling fans, CPUs, DIMM slots, power supplies, LANs and temperature. Incidentally, the server also shipped with a SATA/SAS PCI card for external drive connectivity and it also had battery backed cache. The primary SAS/SATA controller is embedded on the motherboard and on our system had the cache battery backed. SSDs take no prisoners when their performance is compared to the fastest conventional hard drive, but they are a lot more expensive and of relatively low capacity per unit. All the bays on our test unit were occupied by 60GB SSDs that connected through the D元80’s SATA interface. The front panel of this system hosts eight 2.5-inch hot swap drive bays.
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