User's Guide

Table Of Contents
Interval Action
Weekly Schedule Choose a frequency in days. Then, select a day or multiple days to
conduct the backup by clicking the checkbox next to the day to
place a checkmark in the box.
Monthly Schedule Choose the months that you want to run a backup by clicking the
checkbox next to the month(s) to place a checkmark in the box(es).
Then, select a day of the month to conduct the backup. Last,
specify a time of day.
Redundant Appliance Synchronization
Extreme AirDefense provides a feature that allows you to configure a second server as a redundant
server. This server will automatically take over if the primary server fails for any reason. To enable
smooth transition between the two servers, the configurations of the primary server must be
synchronized with the secondary server, either manually, or automatically as per a preset schedule.
Figure 119: Redundant Appliance Synchronization Screen
The correct way to synchronize your servers is to configure your primary server first and then
synchronized your secondary server with your primary server. All configuration settings are copied from
your primary server to your secondary server. After synchronization, both the servers will have the same
configuration. When synchronizing these servers, the configurations from the primary server will
override any configurations set on the secondary server.
How Synchronization Works
Synchronization will not work if there is no backup file or if there is a backup in progress.
On the standby server, during either scheduled or on-demand synchronization, the standby server
pulls the current backup from /usr/local/smx/backups on the primary server.
NEVER schedule a synchronization or perform an on-demand synchronization at the same time a
backup is occurring on the primary server.
NEVER start an on-demand backup while synchronizing servers.
The backup file is copied to /usr/local/smx/backups on the standby machine which brings up
two important points:
NEVER schedule a local, remote or on-demand backup on the standby machine. If you do, it will
overwrite the file transferred over from the primary server.
Configuration
Redundant Appliance Synchronization
Extreme AirDefense User Guide for version 10.5. 293