IBM TotalStorage DS4500, User Manual

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Table 11. RAID controller indicator lights
Indicator light Color
Normal
operation
Problem
indicator
Possible conditions indicated by the
problem indicator
1
Power Green On Off
v
There is no power to the storage subsystem.
v The cables are loose or the switches are off.
v The power supply has failed, is missing, or
is not fully seated.
v
The temperature of the DS4500 Storage
Server is too high.
Fault
3
Amber Off On Controller failure
Heartbeat Green Blinking Not blinking No controller activity
Status (seven
3
lights not
including
Heartbeat)
Green All indicator lights
are off except the
heartbeat
2
Various patterns
depending on
the condition
2
If any status indicator lights are lit and the
controller is not offline, there is a memory fault
indicating that the controller CRU has failed.
1
Always use the storage-management software to identify the failure.
2
There are eight indicator lights (the Heartbeat
and seven others) the seven others are lit in various patterns, depending on the controller status.
3
If the controller is
offline, all of the indicator lights will be lit. This does not indicate failure.
Battery indicator lights
The battery has four indicator lights, as shown in Figure 26.
Note: To view the battery indicator lights, remove the DS4500 Storage Server
bezel, as shown in Figure 21 on page 21.
Table 12 on page 31 describes the battery indicator lights.
Figure 26. Battery indicator lights
30
IBM TotalStorage DS4500 Fibre Channel Storage Server: User’s Guide