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Introduction
6 IBM System Storage DCS9550 1S1 Storage Expansion Unit Installation, Service, and User Guide
FC Host Port 1
Signal Good
Incoming FC signal is GOOD
No connection or incorrect connection
Invalid SFP connection
Green
On
Off
Flashing
Router Status Storage Router Device Ready
Storage Router Device not ready or defective
Green
On Off
ESI/SCM Module
Fault
Fault present (also On when booting)
Successful controller initialization
Amber
Off On
Figure 1–6 SCM I/O Module
Table 1–2 SCM I/O Module LEDs