Avaya G350 Maintenance Manual page 26

G350 component maintenance
G350 component maintenance
Server shutdown operations
Depending on the circumstances of the replacement, different server shutdown operations may be
required:
1
If you are replacing an active S8300 Media Server, a functional but inactive LSP, or a functional
hard drive, you can use the Web interface to shut down the server:
a
Under Server, click Shutdown This Server.
b
On the Shutdown This Server screen, the following choices are presented:
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 the shutdown
button located next to the fourth GREEN "Ok-to-Remove" LED (specific to the S8300) for at
least two seconds.
— 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.
3
If a non-functional S8300, LSP, or hard drive is to be replaced, normal shutdown procedures may
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:
26
•
Delayed (default option) – the system waits for processes to close files and other
clean-up activities to finish before the server is shut down
•
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.
Maintenance of the Avaya G350 Media Gateway
June 2004