Table 42. Front LEDs and controls
Number LED Normal Status Problem Status
1 Drive Activity LED On (not blinking) - No
data is being processed
Blinking - Data is being
processed
Off
2 Drive Fault LED Off
Blinking - Drive, volume,
or storage array locate
function
On (not blinking)
3 Global Locate
On N/A
4 Global Summary Fault
Off On
5 Global Power On Off
6 Link Rate Switch Set to the 2 Gbps or 4
Gbps position, depending
on your configuration.
N/A
Battery unit LEDs
This section describes the primary LEDs on the storage subsystem battery units for
all models.
ds470103
2 3 4
5
61
Figure 98. Front LEDs and controls
128 IBM System Storage DS4700 Express Storage Subsystem: Installation, User’s and Maintenance Guide
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