Dell EMC ME4084 Owner's Manual page 32

• If the CRU Fault LED is on, a fault condition is detected.
• Restart this controller from the partner controller using the ME Storage Manager or CLI.
• If the restart does not resolve the fault, remove the IOM and reinsert it.
Disk drive carrier module LEDs
Disk drive status is monitored by a green LED and an amber LED mounted on the front of each drive carrier module, as shown in the
following figure.
The drive module LEDs are identified in the figure, and the LED behavior is described in the table following the figure.
• In normal operation, the green LED are on, and flicker as the drive operates.
• In normal operation the amber LED will be:
• Off if there is no drive present.
• Off as the drive operates.
• On if there is a drive fault.
Figure 35. LEDs: Drive carrier LEDs (SFF and LFF modules) used in 2U enclosures
1. Disk Activity LED
3. Disk Fault LED
Table 13. Drive carrier LEDs
Activity LED (Green)
Off
Off
Blink off with activity
1 down: Blink with activity
2 down: Off
On
Blink off with activity
Blink off with activity
Blink off with activity
Blink off with activity
Blink off with activity
On
Blink off with activity
Blink off with activity
Blink off with activity
32 Troubleshooting and problem solving
2. Disk Fault LED
4. Disk Activity LED
Fault LED (Amber)
Off
Off
Blinking: 1s on /1s off
On
On
Off
Off
Off
Off
Blinking: 3s on/ 1s off
Off
Blinking: 3s on/ 1s off
Off
Off
Status/condition*
Off (disk module/enclosure)
Not present
Identify
Drive link (PHY lane) down
Fault (leftover/failed/locked-out)
Available
Storage system: Initializing
Storage system: Fault-tolerant
Storage system: Degraded (not critical)
Storage system: Degraded (critical)
Storage system: Quarantined
Storage system: Offline (dequarantined)
Storage system: Reconstruction
Processing I/O (whether from host or
internal activity)