Troubleshooting 2U Enclosures - Dell EMC PowerVault ME4 Series Deployment Manual

CRU OK (Green) CRU Fault
(Amber)
Blinking
Actions:
• 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 IOM using the ME Storage Manager or CLI.
• If the restart does not resolve the fault, remove the IOM and reinsert it.
• If the previous actions do not resolve the fault, contact your supplier for assistance. IOM replacement may be necessary.

Troubleshooting 2U enclosures

Common problems that may occur with your 2U enclosure system.
The Module Fault LED on the Ops panel, described in
fault for the problems listed in the following table:
NOTE: All alarms also report through SES.
Table 20. 2U alarm conditions
Status
PCM alert – loss of DC power from a single PCM
PCM fan fail
SBB module detected PCM fault
PCM removed
Enclosure configuration error (VPD)
Low warning temperature alert
High warning temperature alert
Over-temperature alarm
2
I C bus failure
Ops panel communication error (I
RAID error
SBB interface module fault
SBB interface module removed
Drive power control fault
Drive power control fault
Drive removed
Insufficient power available
For details about replacing modules, see the Dell EMC PowerVault ME4 Series Storage System Owner's Manual.
NOTE: Use the ME Storage Manager to monitor the storage system event logs for information about enclosure-related
events, and to determine any necessary recommended actions.
68 Troubleshooting and problem solving
External host port
activity (Green)
Figure 30. Ops panel LEDs—2U enclosure front
Severity
Fault – loss of redundancy
Fault – loss of redundancy
Fault
Configuration error
Fault – critical
Warning
Warning
Fault – critical
Fault – loss of redundancy
2
C) Fault – critical
Fault – critical
Fault – critical
Warning
Warning – no loss of disk power
Fault – critical – loss of disk power
Warning
Warning
Status
EBOD VPD error
panel, lights amber to indicate a
Alarm
S1
S1
S1
None
S1
S1
S1
S4
S1
S1
S1
S1
None
S1
S1
None
None