Dell SC4020 - SC4020 Storage System Back-Panel Features and Indicators

Item Name Icon Description
• On steady green: At least one power supply is providing
power to the storage system
2 Status indicator
Lights when at least one power supply is supplying power to
the storage system.
• Off: No power
• On steady blue: Power is on and firmware is running
• Blinking blue: Storage system is busy booting or updating
• On steady amber: Hardware detected fault
• Blinking amber: Software detected fault
3 Identification
button
Lights when the storage system identification is enabled.
• Off: Normal status
• Blinking blue: Storage system identification enabled
4 Unit ID display — Displays the storage system identification number. The default
value for a new storage system is 01.
5 Hard drives — Can have up to 24 2.5-inch SAS hard drives.
SC4020 Storage System Back-Panel Features and Indicators
The back panel of the SC4020 contains the storage controller indicators and power supply indicators.
Figure 8. SC4020 Storage System Back-Panel View
Item Name Icon Description
1 Power supply/
cooling fan module
(PSU) (2)
— Contains a 580 W power supply and fans that provide cooling
for the storage system.
2 Battery backup unit
(BBU) (2)
— Allows the storage controller to shut down smoothly when a
loss of AC power is detected.
3 Storage controller — Each storage controller contains:
• Back-end ports: Two 6 Gbps SAS ports
About the SC4020 Storage System
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