Item Name Icon Description
• Steady amber – Fan fault or the storage system is having a problem
communicating with the PSU
• Blinking amber – PSU is in programming mode
5 AC power fault indicator
(2)
• Off – Normal operation
• Steady Amber – PSU has been removed or the storage system is having a
problem communicating with the PSU
• Blinking amber – PSU is in programming mode
6 AC power status indicator
(2)
• Off – AC power is off, the power is on but the PSU is not in the storage
system, or a hardware fault is possible
• Steady green – AC power is on
• Blinking green – AC power is on and the PSU is in standby mode
7 DC power fault indicator
(2)
• Off – Normal operation
• Steady amber – PSU has been removed, a DC or other hardware fault has
occurred, or the storage system is having a problem communicating with the
PSU
• Blinking amber – PSU is in programming mode
8 Power socket (2) — Accepts a standard computer power cord.
9 Power switch (2) — Controls power for the storage system. Each PSU has one switch.
SC4020 Storage System Storage Controller Features and
Indicators
The SC4020 storage system includes two storage controllers in two interface slots.
SC4020 Storage System Storage Controller with Fibre Channel
Front-End Ports
The following figures show the features and indicators on a storage controller with Fibre Channel front-end ports.
Figure 6. SC4020 Storage System Storage Controller with Four 8 Gb Fibre Channel Front-End Ports
Figure 7. SC4020 Storage System Storage Controller with Two 16 Gb Fibre Channel Front-End Ports
12
About the SC4020 Storage System
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