SCv3000 and SCv3020 Storage System Deployment Guide

SCv300 and SCv320 Expansion Enclosure EMM Features and Indicators

The SCv300 and SCv320 expansion enclosure includes two enclosure management modules (EMMs) in two interface slots.

Features and indicators on the Expansion Enclosure EMM.
Item	Name	Description
1	SAS port status (1–4)	Green – All the links to the port are connected Amber – One or more links are not connected Off – Expansion enclosure is not connected
2	EMM status indicator	On steady green – Normal operation Amber – Expansion enclosure did not boot or is not properly configured Blinking green – Automatic update in progress Blinking amber two times per sequence – Expansion enclosure is unable to communicate with other expansion enclosures Blinking amber (four times per sequence) – Firmware update failed Blinking amber (five times per sequence) – Firmware versions are different between the two EMMs
3	SAS ports 1–4 (Input or Output)	Provides SAS connections for cabling the storage controller to the next expansion enclosure in the chain. (single port, redundant, and multichain configuration).
4	USB Mini-B (serial debug port)	Not for customer use
5	Unit ID display	Displays the expansion enclosure ID