Identifying a Faulted ZS4-4 Memory Module
Replacing a DIMM is a cold-swap procedure, and you must remove power from the storage controller. Use the following procedure to identify a faulted ZS4-4 memory module.
- To identify a general memory fault, go to the Maintenance > Hardware screen of the BUI, and click the right-arrow icon for the controller. Then click DIMM and note the ID of the faulted module, which has an amber icon. To highlight the location of the memory module in the controller picture, click on the module ID. To view details about the faulted module, click its information icon and then click Active Problems.
- Shut down the controller using one of the power-off methods described in Powering Off the Controller.
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Disconnect the AC power cords from the rear panel of the storage
controller.
Caution - Because 3.3 VDC standby power is always present in the system, you must unplug the power cords before accessing any cold-serviceable components.
- Extend the controller from the rack as described in Extending the Storage Controller from the Rack.
- Remove the top cover as described in Removing the Top Cover.
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To locate the faulted component, first press and hold the Fault Remind
button to verify that the remind circuitry is usable. The Fault Remind
button is located on the divider between cooling zone 1 and cooling zone 2.
The Power LED, next to the button, is green when the remind circuitry is
usable.
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If a memory riser card has failed, see Replacing a ZS4-4 Memory Riser Card for removal and installation instructions.
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If a DIMM has failed, see Replacing a ZS4-4 DIMM for removal and installation instructions.
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If a CPU has failed, the LEDs for both memory riser cards associated with the failed CPU turn on. The following example, shows the Fault indicators for memory riser cards, P0/MR0 and P0/MR1 are lit, as is the Fault indicator for CPU, P0.
Caution - A CPU is a field replaceable unit (FRU) and must be replaced by a trained Oracle service technician.
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