NEC 320Lb-R manual Disk LED green/amber

1PCI module (for group 1)

A module that includes a PCI board and LAN controller.

2PCI module (for group 2)

A module that includes a PCI board and LAN controller.

3CPU module (for group 1)

A module that includes a CPU (processor) and memory (DIMM).

4CPU module (for group 2)

A module that includes a CPU (processor) and memory (DIMM).

5POWER switch

A switch for turning on/off power to the system. The POWER switch on the primary PCI module will be lit. Press it once to turn on power. Press it again to turn off power. Depress the switch for more than four seconds to force the system to power down. The POWER switch on the secondary PCI module will be unlit and will not respond until a failure in the primary PCI module causes the secondary PCI module to assume primary functionality.

6CD-ROM drive

Used for reading data from CD-ROMs.

Although there are two CD-ROM drives, only the one on the active primary PCI module can be used (the module with the lit POWER Switch LED).

73.5-inch disk bay

Slots for adding hard disks. On a tower model, they are called Slots 1, 2, and 3 from the bottom. On a rack-mount model, they are called Slots 1, 2, and 3 from the left. Slots of the same number are mirrored between the groups 1 and 2.

8DUMP switch

A switch for outputting a memory image from the kernel to a file.

9DISK LED (green/amber)

An LED that blinks in green while the hard disk is accessed. When operating in simplex mode or the hard disk fails, it will turn amber.

Figure 1-4. Front Chassis Features and Controls (Bezels installed)

1-8 System Overview