Dell SC7020 Owner's Manual - Page 8

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Power Supply and Cooling Fan Modules

The SC7020 series storage system supports two hot-swappable power supply/cooling fan modules.
The cooling fans and the power supplies are integrated into the power supply/cooling fan module and cannot be replaced separately.
If one power supply/cooling fan module fails, the second module continues to provide power to the storage system.
NOTE: When a power supply/cooling fan module fails, the cooling fan speed in the remaining module increases
significantly to provide adequate cooling. The cooling fan speed decreases gradually when a new power supply/cooling
fan module is installed.
CAUTION: A single power supply/cooling fan module can be removed from a powered on storage system for no more
than 90 seconds. If a power supply/cooling fan module is removed for longer than 90 seconds, the storage system might
shut down automatically to prevent damage.

SC7020 Series Storage Controller Features and Indicators

The SC7020 series storage system includes two storage controllers in two interface slots.
SC7020 Series Storage Controller
The following figure shows the features and indicators on the storage controller.
Figure 5. SC7020 Series Storage Controller
Item
Control/Feature
1
Identification LED
2
Cache to Flash (C2F)
3
Health status
8
SC7020 Series Storage System Hardware
Icon
Description
Blinking blue continuously – A command was sent by Storage Manager to the
storage system to make the LED blink so that users can identify the storage
system in the rack.
The identification LED blinks on the control panel of the chassis, which allows
users to find the storage system when looking at the front of the rack.
The identification LEDs on the storage controllers also blink, which allows
users to find the storage system when looking at the back of the rack.
•
Off – Running normally
•
Blinking green – Running on battery (shutting down)
•
Off – Unpowered
•
Amber – Powering up
•
Blinking amber
– Slow blinking amber (2s on, 1s off) – Controller hardware fault was
detected. Use Storage Manager to view specific details about the
hardware fault.