About Monitoring The System; Table 2-5 Frus Not Directly Isolated By Fault Isolating Tools - Sun Microsystems Sun Fire V440 Diagnostics And Troubleshooting Manual

TABLE 2-5
FRU
SCSI data cable
System configuration card
reader
–and–
System configuration card
reader cable
System control keyswitch
cable
Note – Most replacement cables for the Sun Fire V440 server are available only as
part of a cable kit, Sun part number 560-2713.

About Monitoring the System

Sun provides two tools that can give you advance warning of difficulties and
prevent future downtime. These tools are:
Sun™ Advanced Lights Out Manager (ALOM)
Sun Management Center
These monitoring tools let you specify system criteria that bear watching. For
instance, you can enable alerts for system events (such as excessive temperatures,
power supply or fan failures, system resets), and be notified if those events occur.
Warnings can be reported by icons in the software's graphical user interface, or you
can be notified by email whenever a problem occurs.
34 Sun Fire V440 Server Diagnostics and Troubleshooting Guide • July 2003
FRUs Not Directly Isolated by Fault Isolating Tools (Continued)
Diagnostic Hints
This is difficult to distinguish from problems with similar
symptoms. The firmware generates many error messages
about being unable to access OpenBoot configuration
variables, for example: "Could not read diag-level
from NVRAM!" ALOM shows the front panel Service
Required indicator is lit.
If the system control keyswitch and Power button appear
unresponsive, and if the power supplies are known to be
good, you should suspect the SCC reader and its cable. To
test these components, access ALOM, issue the resetsc
command, log in again to ALOM, and remove the system
controller card. If an alert message appears ("SCC card has
been removed"), it means the card reader is functioning
and the cable is intact.
If the system control keyswitch appears unresponsive
(ALOM cannot read keyswitch position), but the Power
button works and the system stays powered on, you should
suspect either that this cable is loose or defective, or (less
likely) that there is a problem with the system configuration
card reader.