Vertiv Avocent HMXCC1-G2, User Manual

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HMXCC1-G2 User’s Manual
Chapter 7 Failover for Database Replication
105
Check the < Failover Enabled > box and click the < Submit > button to reboot the HMXCC1 slave unit.
a. The master unit and slave unit operate in parallel, and the master unit fails
Figure 7-22
Add a new Slave unit
Slave retrieves the latest setting
data and log.
HMXCC1 Master Unit
User IP: 192.168.1. 201
Device IP: 169.254.3. 2
HMXCC1 Slave Unit
User IP: 192.168.1. 202
Device IP: 169.254.3. 3
1. Slave unit regularly polls and monitors the master
unit. As the master unit fails, the slave unit sends
out an email to notify the administrator.
2. Slave unit retrieves the setting data and log from
the master unit per every minute.
1.The slave unit will test to confirm the master unit failure
is not resulted from its misjudgment.
2.As the slave unit confirms the master unit failure, it will
replace the master unit and force the failed master unit
to shut down the power.Once the power shutdown is
unsuccessful, the slave unit will send out an email to
notify the administrator to manually shut down the failed
master unit.
3. After the old slave unit became the new master unit,
the system became a single controller system. This
operating new master unit will apply its latest successful
database backup from the failed master unit at the same
IP address (192.168.1.
201 ), operating the system.
4.The auto failover procedure won’t interrupt the system
operation.
5.As the new slave unit is added by the administrator to
operate with the master unit, the system will resume as a
fault-tolerant redundant system again.
Slave polls the master regularly.
1. User Registration, authority, and network security
management.
2. Monitor if the slave unit polls regularly. As the slave
no longer polls the master unit, the master sends out an
email to notify the administrator.
Master Failure Confirmed
After the old slave unit replaced the failed master
unit and became the new master unit, add a new
HMXCC1 controller and set up it as the new slave
unit.

As the master unit fails, the old slave unit replaced the failed master unit. The administrator manually removes
the failed master unit and add a new HMXCC1 controller to be a new slave unit.

Login the new HMXCC1 controller with the factory default management interface login IP address
(https://192.168.1.200:5008). Go to
System > Networks , and click the < Configure > button to set the User
IP(192.168.1. 202 ) and Device IP(169.254.3. 3 ) as the old slave unit.

Go to the < Replication Mode> page of the new HMXCC1 controller.Set it as < Slave > and input the User IP
address of the master unit (192.168.1.201). At last, click the < Submit > button to reboot the new HMXCC1