Filter
Top Products
Chapter 2 System Overview and Troubleshooting 2-31
Whether the state of the entire system is normal can be learned by checking the operator
panel (outside). When an error occurs in an individual hardware component in the system,
the LEDs of the FRU containing the hardware component that has caused the error indicate
that an error has occurred. The LEDs on the operator panel (back) indicate the status of the
operator as a single unit. However, some FRUs like DIMMs do not have LEDs.
Whether a FRU without LEDs is in the normal state can be checked by executing the XSCF
Shell commands showhardconf and ioxadm from a maintenance terminal. For details of
the commands, see the SPARC Enterprise M3000/M4000/M5000/M8000/M9000 Servers
XSCF Reference Manual.
2.7.1 When target FRU is indicated by LEDs
When an error message is displayed at the system console and the cause of the error is in
hardware, a faulty FRU must be removed and replaced. Each FRU is equipped with an LED
to indicate whether an error has occurred in the FRU and an LED to indicate whether the
FRU can be removed. Most FRUs are named READY LED and CHECK LED. In some
cases, names are not indicated but the icons are always printed or icon labels are always
affixed. Such FRUs include the back of the operator panel, XSCFUs, CMUs, XBUs, CLKUs,
FANs, and HDDs.
2.7.2 When target FRU is not indicated by LEDs
For some FRUs, the READY LED and CHECK LED are not used as the names of the LEDs
that are checked at replacement. Even in such a case, the same icons as those for the READY
LED and CHECK LED are used so that the meaning of LEDs can be understood. Even if the
names of LEDs are not indicated, the icons are always printed or icon labels are always
affixed.
TABLE 2-11 LED Display That Should Be Checked When a FRU Is Replaced (Common)
LED Display and Meaning
READY
(green)
Indicates whether the unit is operating (whether it is configured into the system).
Lit Indicates that the FRU is operating. The FRU cannot be disconnected and removed from
the system. Therefore, the FRU cannot be replaced.
Blinking Indicates that the FRU is being configured into the system (or, for an XSCFU, being
initialized) or being disconnected from the system. However, for a PSU, it indicates that
the main line switch has been switched on.
Off Indicates that the FRU is stopped and disconnected from the system. Therefore, the FRU
can be replaced.