SC7020 and SC7020F Storage Systems Owner’s Manual

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SC7020 Series Storage Controller

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

Storage controller features and indicators — Figure 1. SC7020 SeriesStorage Controller

Storage controller features and indicators
Item	Control/Feature	Icon	Description
1	Identification 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 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.
2	Cache to Flash (C2F)		Off – Running normally Blinking green – Running on battery (shutting down)
3	Health status		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. 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
4	I/O card slots	—	Ports for an I/O card installed in riser 1 (slot 1) are numbered 1 to 4 from left to right. Ports for I/O cards installed in riser 2 (slots 2 and 3) are numbered 1 to 4 from right to left.
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 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.
7	USB port		One USB 2.0 connector that is used for SupportAssist diagnostic files 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.
9	Mezzanine 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.