IBM DS3950, Руководство пользователя и инструкция по установке

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Table 17. Front LEDs and controls
Number LED Normal Status Problem Status
1 Drive Activity LED On (not flashing) - No
data is being processed
Flashing - data is being
processed
Off
2 Drive Fault LED Off
Flashing - Drive, volume,
or storage array locate
function
On (not flashing)
Note: In certain ESM
firmware versions, the
Drive Fault LED is lit
when no drive is inserted
in the drive slot.
3 Global Locate On N/A
4 Global Summary Fault Off On
5 Global Power On Off
6 Link Rate Switch The Link Rate switch
should be set to 4 Gbps,
depending on your
configuration. N/A
Rear LEDs
This section describes the primary LEDs, controls, and connectors on the rear of
the storage expansion enclosure for all models. The back view shows the following
components:
v
Fans and power supplies - Two removable power supply and fan unit FRUs,
each containing one power supply and two fans
v
ESMs - Two removable environmental services monitors (ESMs)
exp81021
2 3 4 5 6 1
Figure 30. Front LEDs
Chapter 4. Operating the EXP395
53