7: Troubleshooting and Diagnostics
Troubleshooting Chart
Table
Table
Problem Description | Recommended Action |
The system will not power on.
An individual IRU will not power on.
The system will not boot the operating system.
The Service Required LED illuminates on an IRU.
The Failure LED illuminates on an IRU.
Ensure that the power cords of the IRU are seated properly in the power receptacles.
Ensure that the PDU circuit breakers are on and properly connected to the wall source.
If the power cord is plugged in and the circuit breaker is on, contact your SSE.
Ensure the power cables of the IRU are plugged in.
View the L1 display; see Table
If the L1 controller is not running, contact your SSE.
Ensure the IA/IA2 (base I/O) blade that houses the system disk(s) is properly seated in the IRU. Contact your SSE.
View the L1 display of the failing IRU; see Table
View the L1 display of the failing IRU; see Table
The green or yellow LED of a NUMAlink port is not illuminated.
The PWR LED of a populated PCI slot is not illuminated.
The Fault LED of a populated PCI slot is illuminated (on).
The amber LED of a disk drive is on.
Ensure that the NUMAlink cable is seated properly on both ends.
Reseat the PCI card. Check to make sure the blade is seated fully in the IRU.
Reseat the PCI card. Check to make sure the blade is seated properly in the IRU. If the fault LED remains on, replace the PCI card.
Replace the disk drive.
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