Users Guide

Table Of Contents
Subsystem RACADM Command
RAC event log
getraclog
System event log
getsel
Downloading SNMP Management Information Base File
The CMC SNMP Management Information Base (MIB) le denes the chassis types, events, and indicators. CMC enables you to download
the MIB le using the web interface.
To download the CMC's SNMP MIB le using the CMC web interface:
1 In the left pane, click Chassis Overview > Network > Services > SNMP.
2 In the SNMP Conguration section, click Save to download the CMC MIB le to your local system.
For more information about the SNMP MIB le, see the Dell OpenManage Server Administrator SNMP Reference Guide at dell.com/
support/manuals.
First Steps to Troubleshoot a Remote System
The following questions are commonly used to troubleshoot high-level issues in the managed system:
Is the system turned on or turned o?
If turned on, is the operating system functioning, not responding, or stopped functioning?
If turned o, did the power turn o unexpectedly?
Power Troubleshooting
The following information helps you to troubleshoot power supply and power-related issues:
Problem: Congured the Power Redundancy Policy to Grid Redundancy, and a Power Supply Redundancy Lost event was raised.
Resolution A: This conguration requires at least one power supply in side 1 (the left two slots) and one power supply in side 2 (the
right two slots) to be present and functional in the modular enclosure. Additionally the capacity of each side must be enough to
support the total power allocations for the chassis to maintain Grid redundancy. (For full Grid Redundancy operation, make sure
that a full PSU conguration of four power supplies is available.)
Resolution B: Check if all power supplies are properly connected to the two AC grids; power supplies in side 1 must be connected
to one AC grid, those in side 2 must be connected to the other AC grid, and both AC grids must be working. Grid Redundancy is
lost when one of the AC grids is not functioning.
Problem: The PSU state is displayed as Failed (No AC), even when an AC cord is connected and the power distribution unit is
producing good AC output.
Resolution A: Check and replace the AC cord. Check and conrm that the power distribution unit providing power to the power
supply is operating as expected. If the failure still persists, call Dell customer service for replacement of the power supply.
Resolution B: Check that the PSU is connected to the same voltage as the other PSUs. If CMC detects a PSU operating at a
dierent voltage, the PSU is turned o and marked Failed.
Problem: Dynamic Power Supply Engagement is enabled, but none of the power supplies display in the Standby state.
Resolution A: There is insucient surplus power. One or more power supplies are moved into the Standby state only when the
surplus power available in the enclosure exceeds the capacity of at least one power supply.
Resolution B: Dynamic Power Supply Engagement cannot be fully supported with the power supply units present in the enclosure.
To check if this is the case, use the web interface to turn Dynamic Power Supply Engagement o, and then on again. A message is
displayed if Dynamic Power Supply Engagement cannot be fully supported.
Problem: Inserted a new server into the enclosure with sucient power supplies, but the server does not power on.
Resolution A: Check for the system input power cap setting—it might be congured too low to allow any additional servers to be
powered up.
Troubleshooting and Recovery
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