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SC5020 and SC5020F Storage System Owner’s Manual

SC5020 Series Storage Controller

The following figure shows the features and indicators on the storage controller.

Figure 1. SC5020 SeriesStorage ControllerStorage controller features and indicators
Storage controller features and indicators
ItemControl/FeatureIconDescription
1I/O card slot 

Fibre Channel I/O card – Ports are numbered 1 to 4 from left to right

  • The LEDs on the 16 Gb Fibre Channel ports have the following meanings:
    • All off – No power
    • All on – Booting up
    • Blinking amber – 4 Gbps activity
    • Blinking green – 8 Gbps activity
    • Blinking yellow – 16 Gbps activity
    • Blinking amber and yellow – Beacon
    • All blinking (simultaneous) – Firmware initialized
    • All blinking (alternating) – Firmware fault
  • The LEDs on the 32 Gb Fibre Channel ports have the following meanings:
    • All off – No power
    • All on – Booting up
    • Blinking amber – 8 Gbps activity
    • Blinking green – 16 Gbps activity
    • Blinking yellow – 32 Gbps activity
    • Blinking amber and yellow – Beacon
    • All blinking (simultaneous) – Firmware initialized
    • All blinking (alternating) – Firmware fault

iSCSI I/O card – Ports are numbered 1 to 4 from left to right

  • NOTE: The iSCSI I/O card supports Data Center Bridging (DCB), but the mezzanine card does not support DCB.
  • The LEDs on the iSCSI ports have the following meanings:
    • Off – 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.

2Identification LEDIdentification LEDBlinking 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 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.

3Cache to Flash (C2F)Cache to Flash
  • Off – Running normally
  • Blinking green – Running on battery (shutting down)
4Health statusStorage controller status
  • Off – Unpowered
  • 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.
    • Fast blinking amber (4x per second) – Power good and the pre-operating system is booting
  • Blinking green
    • Slow blinking green (2s on, 1s off) – Operating system is booting
    • Blinking green (1s on, 1s off) – System is in safe mode
    • Fast blinking green (4x per second) – Firmware is updating
  • Solid green – Running normal operation
5Serial port (micro USB)Serial portUsed under the supervision of technical support to troubleshoot and support systems.
6MGMT 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 off – 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.
7USB portUSB portOne USB 2.0 connector that is used for SupportAssist diagnostic files when the storage system is not connected to the Internet.
8Mini-SAS (ports 1 and 2)Mini SAS portBack-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.
9Mezzanine cardMezzanine card

The iSCSI ports on the mezzanine card are either 10 GbE SFP+ ports or 1 GbE/10 GbE RJ45 ports.

The LEDs on the iSCSI ports have the following meanings:
  • Off – No connectivity
  • Steady green, left LED – Link (full speed)
  • Steady amber, left LED – Link (degraded speed)
  • Blinking green, right LED – Activity
  • NOTE: The mezzanine card does not support DCB.

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