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74 omconfig: Managing Components Using the Instrumentation Service
As with other commands, the CLI issues an error message if you do not have a chassis 2 (the main
chassis=0). The CLI allows you to issue commands only for the system configuration you have.
omconfig chassis leds
Use the omconfig chassis leds command to specify when to flash a chassis fault LED or chassis
identification LED and allow you to clear the LED for the system's hard drive. Table 4-10 shows the valid
parameters for the command.
omconfig chassis memorymode
Use the omconfig chassis memorymode command to specify the redundancy mode you want to use for
your system’s 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 it is currently using. The omconfig chassis 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 module the system is using begins to encounter errors. If you want
to enable redundancy, you must choose among spare, mirror, and RAID.
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.
Table 4-11 shows the valid parameters for the command.
Table 4-10. omconfig chassis 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.