Users Guide
Omconfig Chassis Leds Or Omconfig Mainsystem Leds
Use the omconfig chassis leds or omconfig mainsystem leds command to specify when to flash a chassis fault LED or chassis 
identification LED. This command also allows you to clear the LED of the system hard drive. The following table displays the valid 
parameters for the command.
Table 48. Valid Parameters Of Omconfig Chassis Leds Or Omconfig Mainsystem Leds
name=value pair 1 name=value pair 2 Description
index=<n> NA Number of the chassis where the LED 
resides (defaults to chassis 0, main 
system chassis).
led=fault severity=warning | critical Select to flash the LED either when a 
warning event occurs or when a critical 
event occurs.
led=hdfault action=clear Sets the number of faults for the hard 
drive back to zero (0).
led=identify flash=off | on time-out=<n> Sets the chassis identification LED to off 
or on. Set the time-out value for the LED 
to flash to a number of seconds.
Omconfig Chassis Memorymode Or Omconfig Mainsystem Memorymode
Use the omconfig chassis memorymode or omconfig mainsystem memorymode command to specify the redundancy mode to use 
for the system memory in case of memory errors.
Redundant memory enables a system to switch to other available memory modules if unacceptable errors are detected in the 
modules that the system is currently using. The omconfig chassis memorymode or omconfig mainsystem memorymode command 
allows you to disable redundancy; when you disable redundancy, you instruct the system not to switch to other available memory 
modules when the memory module the system is using begins to encounter errors. To enable redundancy, choose among spare, 
mirror, raid, and DDDC.
Spare mode disables a bank of system memory in which a correctable memory event is detected, enables the spare bank, and 
copies all the data from the original bank to the spare bank. Spare bank requires at least three banks of identical memory; the 
operating system does not recognize the spare bank.
Mirror mode switches to a redundant copy of memory when an uncorrectable memory event is detected. After switching to the 
mirrored memory, the system does not switch back to the original system memory until the next reboot. The operating system does 
not recognize half of the installed system memory in this mode.
RAID mode provides an extra level of memory checking and error recovery at the expense of some memory capacity.
The DDDC mode enables double device data correction. This ensures data availability after hard failure of x4 DRAM.
NOTE: This command is applicable only on systems prior to PowerEdge 12G systems. On PowerEdge 12G systems, 
memorymode is grouped under Memory Settings of the BIOS setup group. For more information, see BIOS Setup 
Groups on PowerEdge 12G Systems.
To configure the attribute on systems prior to PowerEdge 12G, see the following table. The table displays the valid parameters for 
the command.
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