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30      Barracuda Backup Service Administrator’s Guide

Once a destination has been added, it will appear in the 

table. If it shows as online, 

that means that the two systems are able to communicate with each other.

On the 

 page, there is a global flag to replicate all data to either Barracuda 

Cloud Storage or to Barracuda Backup Servers. If you want to send data from diverse sources to both 
of these options, then do not set that flag. Instead, edit each data source on the 

 

page and specify where its data is replicated.

You can temporarily disable the site-to-site replication feature for one or more destinations. If it is 
disabled,  nothing is sent from the Barracuda Backup Server to the destination until the feature is 
enabled or until 24 hours have passed. This allows you to move the destination system to a remote 
location, say, without getting backup errors. If the 24 hours pass without a manual re-enabling of this 
feature, the Barracuda Backup Servers will attempt to communicate with each other and, if successful,  
perform the back ups.

To disable site-to-site replication temporarily, go to the 

 page. In the 

 table, click on the 

 link beside the destination Barracuda Backup Server. On the 

Replication Target Settings page there is a setting to disable data replication for up to 24 hours.

If there is a loss of communication between the Barracuda Backup Server and its back up destination 
for any reason, the data to be backed up will be queued and errors generated. Data will be queued until 
the issue is resolved. 

The queue size in the table on the 

 page indicates how much data is waiting to 

be replicated. Not all of this data will actually be copied to the destination. Some of it will be 
deduplicated as the replication proceeds. Only those parts that are not already stored in the remote 
location will be sent over the Internet.