Dell EMC ME4 Series Owner's Manual page 40

LED Status/description
Cable Fault Amber indicates the cabling between the drawer and the back of the enclosure has failed. Contact your service provider
to resolve the problem.
Activity Bar Displays the amount of data I/O from zero segments lit (no I/O) to all six segments lit (maximum I/O).
Graph
DDIC LED
The DDIC supports LFF 3.5" and SFF 2.5" disks.. The following figure shows the top panel of the DDIC as viewed when the disk is aligned
for insertion into a drawer slot.
Figure 37. LEDs: DDIC – 5U enclosure disk slot in drawer
1 Slide latch (slides left)
3 Drive Fault LED
Table 22. Drawer LED descriptions
Fault LED (Amber)
Off
Off
Blinking: 1s on/1s off
Any links down: On
On
Off
Off
Off
Off
Blinking: 3s on/1s off
Off
Blinking: 3s on/1s off
Off
Off
*If multiple conditions occur simultaneously, the LED state will behave as indicated by the condition listed earliest in the table, as rows are
read from top to bottom.
Each DDIC has a single Drive Fault LED. A disk drive fault is indicated if the Drive Fault LED is lit amber. In the event of a disk failure, follow
the procedure in Replacing a
40 Troubleshooting and problem solving
Status/description*
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 (non-critical)
Storage system: Degraded (critical)
Storage system: Quarantined
Storage system: Offline (dequarantined)
Storage system: Reconstruction
Processing I/O (whether from host or internal activity)
DDIC.
2 Latch button (shown in the locked position)