Iom Leds; Controller Module Led States - Lenovo ThinkSystem DS Series Hardware Installation And Maintenance Manual

Disk 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
*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.
Figure 75 LEDs: Drive carrier LEDs (SFF and LFF modules)

IOM LEDs

IOM LEDs pertain to controller modules and expansion modules, respectively. Expansion enclosures are supported
for optionally adding storage. See also
Controller module LEDs
Table 15 Controller module LED states
CRU OK
(Green)
On
Off
98 Troubleshooting and problem solving
Disk 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
CRU Fault External host
(Amber) port activity
(Green)
Off
On
Off
On
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)
"12Gb/s controller module LEDs" (page
Status
Controller module OK
Controller module fault – see
No external host port connection
External host port connection – no activity
43).
"Replacing an IOM" (page 127)