• 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 2. Disk Fault LED
3. Disk Fault LED 4. Disk Activity LED
Table 13. Drive carrier LEDs
Activity LED (Green) Fault LED (Amber) Status/condition*
Off Off Off (disk module/enclosure)
Off Off Not present
Blink off with activity Blinking: 1s on /1s off Identify
1 down: Blink with activity
2 down: Off
On Drive link (PHY lane) down
On On Fault (leftover/failed/locked-out)
Blink off with activity Off Available
Blink off with activity Off Storage system: Initializing
Blink off with activity Off Storage system: Fault-tolerant
Blink off with activity Off Storage system: Degraded (not critical)
Blink off with activity Blinking: 3s on/ 1s off Storage system: Degraded (critical)
On Off Storage system: Quarantined
Blink off with activity Blinking: 3s on/ 1s off Storage system: Offline (dequarantined)
Blink off with activity Off Storage system: Reconstruction
Blink off with activity Off Processing I/O (whether from host or
internal activity)
32 Troubleshooting and problem solving
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