2-91 PCI module (for group 1)A module that includes a PCI board and LAN controller.2 PCI module (for group 2)A module that includes a PCI board and LAN controller.3 CPU module (for group 1)A module that includes a CPU (processor) and memory (DIMM).4 CPU module (for group 2)A module that includes a CPU (processor) and memory (DIMM).5 POWER switchA switch for turning on/off power to the system. The POWER switch on the primary PCImodule will be lit. Press it once to turn on power. Press it again to turn off power. Depressthe switch for more than four seconds to force the system to power down. The POWERswitch on the secondary PCI module will be unlit and will not respond until a failure in theprimary PCI module causes the secondary PCI module to assume primary functionality.6 CD-ROM driveUsed for reading data from CD-ROMs.Although there are two CD-ROM drives, only the one on the active primary PCI module canbe used (the module with the lit POWER Switch LED).7 3.5-inch disk baySlots for adding hard disks. On a tower model, they are called Slots 1, 2, and 3 from thebottom. On a rack-mount model, they are called Slots 1, 2, and 3 from the left. Slots of thesame number are mirrored between the groups 1 and 2.8 DUMP switchA switch for outputting a memory image from the kernel to a file.9 DISK LED (green/amber)An LED on the hard disk. Blinks in green while the hard disk is accessed and turns amberwhen operating in simplex mode. If one of the mirrored hard disks fails, the failed disk’s LEDturns green and the other disk’s LED turns amber.CD- ROM Drive1 Status LEDAn LED that stays on while the loaded CD-ROM is accessed.2 CD tray eject buttonA button for ejecting the CD tray.3 Manual release holeWhen the eject button does not work, insert a metal pin into this hole to forcefully eject the CDtray.
