IBM Midrange System DS4000 Series Hardware Manual page 72

Interconnect module LEDs
The interconnect module is located in the forward section of the DS5000 storage subsystem,
behind the front bezel panel. It is located in between the two controller support modules. It
holds the cache batteries and the removable midplane. The LED indicator lights are shown in
Figure 3-27.
Figure 3-27 Interconnect module LEDs
The LEDs are:
Battery needs attention (amber):
– Off: Normal status.
– On: Battery failed.
Power LED (green):
– On: Storage subsystem is powered on.
– Off: Storage subsystem is powered off.
Overall DS5000 storage subsystem configuration requires attention (amber):
– Off: Normal status.
– On: A Component in the storage system has developed a fault.
Locate/Identify (white, appears as blue when front bezel is installed):
– Off: Normal status.
– On: Storage subsystem locate.
Service action allowed (blue):
– Off: Normal status.
– On: Safe to remove.
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IBM Midrange System Storage Hardware Guide
Locate
/identify
Overall
configuration
needs attention
Power
Battery needs attention
Battery needs attention
Service Action Allowed