HP 2120 - Components of the Disk System; Front Panel; Disk Module Leds; System Power LED

HP StorageWorks Disk System 21208
Components of the Disk System
Front Panel
The disk modules can be accessed from the front of the disk system. It can accept up
to 4 low profile disk drives. If your storage system contains less than 4 disk modules,
the remaining empty slots contain filler panels. These filler panels (part number
A6198-60002) ensure that the proper cooling is maintained within the storage system.
Remove filler panels only when a disk module is added to the system.
Disk Module LEDs
Each disk module has two LEDs: an amber LED on the top (see Figure 1) and a green
LED on the bottom. The amber LED is not operational. The green LED provides disk
module status information as listed in Table 6.
FIGURE 1 Disk Module LEDs
TABLE 1 Disk LED Activity Definitions
System Power LED
The System Power LED (see Figure 2) gives diagnostic information about the disk
system operation. Refer to Table 2 on page 9 for more information.
LED Activity Indication
Blinking Disk activity
On solid for
approximately 1 second
Bus reset
Off Disk is idle or off
Disk Module
LEDs
Amber LED (not used)
Green LED