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High Availability (HA)
Feature Description
Preferred master: unit 2
23. Now, old unit 1 (A) can be removed from production.
24. On the WUI of the new unit 1 (C), in the main menu, go to System Configuration >
System Administration > Backup/Restore.
25. Click Choose File.
26. Browse to and select the backup file.
27. Select the configuration(s) that need to be restored.
28. Click Restore Configuration.
It is not possible to restore a configuration containing ESP-enabled Virtual
29. Click Reboot Now.
30. Click Continue.
31. In the main menu, go to Local Administration > Interfaces.
32. Select the relevant interface.
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Old unit 1 (A) (Standby)
New unit 1 (C)
As new unit 2 (D) is master, this should not affect production.
Figure 10-8: Restore Configuration
This is the backup configuration from old unit 1 (A).
It is not possible to restore a single machine configuration onto a HA
machine and vice versa.
Services onto a machine which is not enabled for ESP.
Figure 10-9: Network Interface
New unit 2 (D) (Master)
Old unit 2 (B)
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