5U enclosure LEDs 99
Actions:
• If the CRU OK LED is blinking, wait for the system to boot.
• If the CRU OK LED is off, and the IOM is powered on, the module has failed.
Check that the IOM is fully inserted and latched in place, and that the enclosure is powered on.
Check the event log for specific information regarding the failure.
• If the CRU Fault LED is on, a fault condition is detected.
Restart this controller from the partner controller using the SMC or CLI.
If the restart does not resolve the fault, remove the IOM and reinsert it.
• If the above actions do not resolve the fault, contact Lenovo for assistance. IOM replacement may be necessary.
Expansion module LEDs
Expansion IOM status is monitored by the LEDs located on the face plate. See also Figure 16 (page 27). LED
behaviors for DS Series expansion enclosures are described in Table 16. For actions pertaining to Table 15 or
Table 16, see Actions above. See also “12Gb/s expansion module LEDs” (page 52).
5U enclosure LEDs
NOTE: When the 5U enclosure is powered on, all LEDs are lit for a short period to ensure they are working.
This behavior does not indicate a fault unless LEDs remain lit after several seconds.
Blinking External host port connection – activity
Blinking System is booting
Table 15 Controller module LED states (continued)
CRU OK
(Green)
CRU Fault
(Amber)
External host
port activity
(Green)
Status
Table 16 Expansion module LED states
CRU OK
(Green)
CRU Fault
(Amber)
SAS port activity
(Green) Status
On Off Expansion module OK
Off On Expansion module fault – see “Replacing an IOM” (page 127)
Off No external port connection
On HD mini-SAS port connection – no activity
Blinking HD mini-SAS port connection – activity
Blinking EBOD VPD error
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