Dell EMC SC5020 - Page 10

Item Control/Feature Icon Description
• The LEDs on the iSCSI ports have the following meanings:
– O – No power
– Steady Amber – Link
– Blinking Green – Activity
SAS I/O card – Ports are numbered 1 to 4 from left to right
The SAS ports on SAS I/O cards do not have LEDs.
2 Identication LED Blinking blue continuously – A command was sent to the storage system to make
the LED blink so that you can identify the storage system in the rack.
The identication LED blinks on the control panel of the chassis, which allows
users to nd the storage system when looking at the front of the rack.
The identication LEDs on the storage controllers also blink, which allows users to
nd the storage system when looking at the back of the rack.
3 Cache to Flash (C2F)
• O – Running normally
• Blinking green – Running on battery (shutting down)
4 Health status
• O – Unpowered
• Blinking amber
– Slow blinking amber (2s on, 1s o) – Controller hardware fault was
detected. Use Storage Manager to view specic details about the
hardware fault.
– Fast blinking amber (4x per second) – Power good and the pre-operating
system is booting
• Blinking green
– Slow blinking green (2s on, 1s o) – Operating system is booting
– Blinking green (1s on, 1s o) – System is in safe mode
– Fast blinking green (4x per second) – Firmware is updating
• Solid green – Running normal operation
5 Serial port (micro USB) Used under the supervision of technical support to troubleshoot and support
systems.
6 MGMT port — Ethernet port used for storage system management and access to Storage
Manager.
Two LEDs with the port indicate link status (left LED) and activity status (right
LED):
• Link and activity indicators are o – Not connected to the network
• Link indicator is green – The NIC is connected to a valid network at its
maximum port speed.
• Link indicator is amber – The NIC is connected to a valid network at less than
its maximum port speed.
• Activity indicator is blinking green – Network data is being sent or received.
7 USB port One USB 2.0 connector that is used for SupportAssist diagnostic les when the
storage system is not connected to the Internet.
8 Mini-SAS (ports 1 and 2) Back-end expansion ports 1 and 2. LEDs with the ports indicate connectivity
information between the storage controller and the expansion enclosure:
• Steady green indicates the SAS connection is working properly.
• Steady yellow indicates the SAS connection is not working properly.
10 SC5020 Series Storage System Hardware