PowerVault ML6000 Maintenance Guide 223
T025
T025 - Power Supply Hardware Failure
Description GUI Description: A defective power supply has been detected.
Explanation: Power supplies report four failure conditions that are
considered to be a hardware failure within the supply: Fan Fail, Over Temp,
DC Fail, and Over Current. These failures can occur in both single and
redundant power supplies within control modules and any expansion module
with a power supply.
Detection Scenarios Regular monitoring of power supply status results in one of four detected
failures.
Root Causes • Detected fan failure in the supply.
• Detected over temp condition in the supply.
• Detected DC failure in the supply.
• Detected over current failure in the supply.
• Damaged module terminator or module-to-module cable with bent or broken
pins.
Service Resolution
Steps
1 Perform RR003 - Remove and Replace Power Supply
on page 422. See
also Removing and Replacing a Power Supply
on page 107.
2Use the Details option in the RAS ticket to identify which power supply is
generating the RAS ticket. Inspect the suspect power supply and verify that
there is a power supply present and turned on. For normal operation, both
LEDs (AC OK and DC OK) should be solid green. The STANDBY LED
should be off.
3 Reseat the power supply and swap with others in the unit to isolate failure to
either the slot or the power supply.
4 Inspect the module terminators and module-to-module cables for loose
connectors or damage (bent or broken pins). If damaged, replace the part.
Reseat the terminators and cables.
Possible CRUs/FRUs Note: Read and perform all resolution steps before dispatching any parts.
Dispatch parts as appropriate based on analysis:
• Power Supply
• Module Terminators and Module-to-Module Cables
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