Troubleshooting and Problem Solving
4.3.3SCM I/O Module LEDs
The SCM I/O module LEDs are shown in Table
Table
LED | Definition | Color | Normal | Fault |
|
|
| Status | Status |
|
|
|
|
|
FC Host Port 0 | Incoming FC signal is GOOD | Green | On |
|
Signal Good | No connection or incorrect connection |
|
| Off |
| Invalid SFP connection |
|
| Flashin |
|
|
|
| g |
|
|
|
|
|
FC Host Port 1 | Incoming FC signal is GOOD | Green | On |
|
Signal Good | No connection or incorrect connection |
|
| Off |
| Invalid SFP connection |
|
| Flashin |
|
|
|
| g |
|
|
|
|
|
Router Status | Storage Router Device Ready | Green | On |
|
| Storage Router Device not ready or |
|
| Off |
| defective |
|
|
|
|
|
|
|
|
ESI/SCM | Fault present (also On when booting) | Amber | On |
|
Module Fault | Successful controller initialization |
|
| Off |
|
|
|
|
|
4.4Audible Alarm
The Ops Panel also includes an Audible Alarm which indicates when a fault state is present. The following conditions will activate the Audible Alarm:
•Drive Fault
•Fan Fault
•Voltage out of range
•Thermal overrun
•System fault
4.4.1Audible Alarm Mute
When the Audible Alarm sounds, it may be muted by pressing the Alarm Mute
LED Test Mode
The Alarm Mute
IBM System Storage DCS9550 1S1 Storage Expansion Unit Installation, Service, and User Guide | 41 |