RealPresence Collaboration Server (RMX) 1500/1800/2000/4000 Administrator’s Guide
Polycom®, Inc. 713
2Select the appropriate Hot Backup Triggers check boxes:
3Alternatively, click the Trigger Failover Manually button when you want to trigger the Hot Backup
manually and activate the Slave MCU.
A confirmation message is displayed.
4Click Yes to continue the Hot Backup process or click No to cancel the Hot Backup process.
5Click OK.
Modifications to the Master MCU Requiring System Reset
Modifications to the configuration of the Master MCU that require a System Reset cannot be performed
while Hot Backup is enabled.

To modify the Master MCU configuration:

1Disable the Hot Backup on the Master and Slave MCUs.
2Modify the Master MCUs configuration.
3Reset the Master MCU.
4When the reset is complete, enable Hot Backup on the Master and Slave MCUs.
5If required, reset the Slave MCU.
Hot Backup Triggers
Hot Backup Trigger Description
Lost connection with management
port
Initiates the Hot Backup switch from the Master to the Slave MCU
when the connection to the management port is lost on the Master
MCU. This trigger is always set.
Lost connection with media port Initiates the Hot Backup switch from the Master to the Slave MCU
when the connection with an active media port is lost on the Master
MCU.
Lost connection with signalling port Initiates the Hot Backup switch from the Master to the Slave MCU
when the connection with an active signalling port is inactive for a
duration of 30 seconds on the Master MCU. A system flag,
ETH_INACTIVITY_DURATION, can be added and configured to
modify the duration of inactivity of the signalling port. Default value
is 30 seconds; Minimum value is 20 seconds.
Lost connection with ISDN card Initiates the Hot Backup switch from the Master to the Slave MCU
when the connection with an ISDN card is disconnected on the
Master MCU.