Dell Unity™ All Flash and Unity Hybrid Unity 480/F, Unity 680/F, Unity 880/F Hardware Information Guide

About embedded modules

Each SP assembly contains one embedded module that can hold one 4-port card for connectivity.

The embedded module contains the following components:

• One 4-port card
• One non-maskable interrupt (NMI) button
• Two mini-SAS HD back-end ports
• Two RJ-45 LAN connectors
  • System management port ()
  • Service port ()
• One USB 3.0 port
• One mini-USB port (unused)
• One DB9 serial port (service access)

Table 1. Embedded module component locations

Location	Description
	4-port card
	Mini serial port (unused)
	Mini-SAS HD back-end ports
	DB9 serial port (unused)
	RJ-45 LAN connector - service port
	RJ 45 LAN connector - system management port
	Non-maskable interrupt (NMI) button
	USB 3.0 port

About 4-port cards

The 4-port card is an optional component located within the embedded module that serves Ethernet traffic and iSCSI block protocol. There are two supported 4-port cards: the 25GbE 4-port card and the 10GbE BaseT 4-port card.

The 25GbE 4-port card supports 1GbE SFP to RJ45, 10GbE or 25GbE SFP28, 25GbE passive TwinAx, and 10GbE active or passive TwinAx. Depending on the installed SFP or TwinAx cable, the following speeds are supported: 1GbE, 10GbE, and 25GbE. The ports may be configured individually with TwinAx or any of the supported SFPs.

The 10GbE BaseT 4-port card supports speeds of 1GbE and 10 GbE.

Embedded module and 4-port card LED status

Table 2. Embedded module LEDs

LED	Location	State	Description
Embedded module power		Amber	Embedded module has faulted.
		Off	No fault has occurred, normal operation.
Ethernet port link		Green	Link established.
		Off	No link established.
Ethernet port activity		Amber blinking	Port activity.
		Off	No port activity.
SAS port/activity Link		Blue	SAS port link is up.
		Off	No link established.
Port link		Green	Link up with high speed.
		Amber	Link up with degraded speed.
		Off	Link down.
Storage processor assembly fault		Amber	Fault has occurred.
		Blue	Storage processor assembly in Degraded Mode.
		Amber or blue blinking	System is booting.
		Blue and amber alternating (green for 3 seconds)	System not initialized. A management IP address has not been assigned.
		Blue and amber alternating at one second intervals	Storage processor assembly in Service Mode.
		Off	No fault has occurred, normal operation.
Storage processor assembly power		Green	Storage processor assembly is on (main power).
		Green blinking	Storage processor assembly is initializing a serial over LAN session.
		Off	Storage processor assembly is off.
Unsafe to remove		White	Do not remove the SP assembly. Improper removal could cause data loss.
		Off	Safe to remove the SP assembly or embedded module when the SP assembly or embedded module has been properly prepared.