Hot Plugging; Master/Standby Switchover - Sagem 4450E Hardware Installation Manual

Triple play access concentrator
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2) Checking running status of the system control board through the command line
Maintenance item
Check the system
resource utilization
Check the version of
the system control
board
Show the running
time from the last
reboot to now
Check the system
time:

9.1.2. Hot Plugging

The device supports the hot plugging of the system control board in the normal running, and the configuration
information of the original card is saved in the system in the plugging process.
If the device is just configured with a system control board, the system will not run when you
unplug the system control board.
If the device is configured with two system control boards, the system will run normally when
you unplug the standby system control board. If you unplug the master system control board,
the master/standby switchover will occur to the device.
After unplugging a card from a slot, you cannot plug a new card immediately, and you should do it in a minute.
Note

9.1.3. Master/Standby Switchover

The master/standby switchover refers to that the master/standby relationship switchover happens when the
system control board is operated manually or some faults occur to it in the redundancy mode.
The master/standby switchover is a self-protection function of the system. When some faults occur to the master
system control board, the master/standby is implemented automatically. In this way, the service is transferred to
the standby system control board, and the system can continue to run.
3P@C Installation Manual
Page 9-2 Reproduction and communication in any form prohibited without the written permission of SAGEM SA
Operation
In
the
hidden
(input the qpmz in the
config mode to enter the
hidden mode), enter the
show
cpuusage
command to check the
CPU utilization.
Use the command show
cpuusage
record
check the time when the
CPU utilization reaches
maximum value (in the
hidden mode)
show version all
show
running-time
the hidden mode)
show time (in the config
mode)
During the system startup process, the hot plugging is not
supported.
Inspection
mode
Check whether the CPU utilization
is very high (if the data is being
saved or the Flash is being written,
the high CPU utilization is normal,
all
but this process does not last
long). The normal CPU utilization
of the service board is not higher
than 20%.
Check the CPU utilization in the
to
historical durations.
If the version of the master system
control board is not consistent with
that of the standby system control
board, the system running fault will
happen.
(in
Check
whether
master/standby switchover occurs
to the system control board from
the last reboot to now.
The time here should be the
standard Beijing time.
SAGEM 3P@C
an
accidental

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