Avaya MCC1 Maintenance Procedures page 397

c Accept the default option.
d Leave the checkbox After Shutdown, Restart System unchecked.
e Click Shutdown.
2 Alternatively, you can manually initiate a shutdown process by first depressing for at least two
seconds the button located next to the fourth GREEN "Ok-to-Remove" LED (specific to the
S8300).
• For Communication Manager versions 1.2 and earlier, the fourth GREEN "Ok-to-
Remove" LED flashes at a constant rate until it finally glows steadily.
• For Communication Manager version 1.3 and later, the fourth GREEN "Ok-to-Remove"
LED flashes at a constant rate, and the TST LED flashes slowly at first. As computer
processes exit, the TST LED flashes faster. When the shutdown has completed, the TST
LED goes out, and the "OK to Remove" LED then glows steadily.
Once steady, this GREEN "Ok-to-Remove" LED indicates that the disk drive has been
parked properly and the S8300 is ready to be removed.
NOTE:
The two processes described below apply to Communication Manager version 1.3 and
later.
3 If the normal shutdown procedure does not succeed, when pressed, the shutdown button programs
the S8300 hardware watchdog to reset the module after a two minute fail-safe interval. In
addition, recovery measures are taken if the shutdown has not been accomplished within 80
seconds. These recovery measures store diagnostic information in flash memory on the S8300 for
later analysis. The LED sequence is different according to the following circumstances:
a Shutdown Failure with Successful Recovery – If a high priority process has seized control
of the S8300's processor, the shutdown signal may be held up indefinitely, so that a
shutdown will never proceed. After 80 seconds, a recovery function runs within the
S8300's operating system that equalizes process priorities, allowing the shutdown
sequence to proceed. The LED sequence is as follows:
Maintenance Procedures
December 2003
• Immediate – the system does not wait for processes to terminate normally before it
shuts the server down
1 After the shutdown button is pressed and held for at least two seconds, the "OK to
Remove" LED begins to flash at a constant rate. The TST LED flashes slowly at
first.
2 The TST LED remains flashing at a slow rate for 80 seconds, because shutdown
processing is being blocked by runaway processes. After 80 seconds, the
YELLOW ACT LED is illuminated, indicating that process priorities have been
equalized, and that diagnostic information has been saved for later analysis.
3 Now allowed to proceed, processes begin to exit as the shutdown begins. As
processes exit, the TST LED flashes faster, and the YELLOW ACT LED remains
illuminated.
4 When shutdown has completed, the TST LED goes out, and the "OK to Remove"
LED comes on steady. At this point, it is safe to remove the S8300 module from
the G700.
Additional maintenance procedures
Removing and restoring power
397