Cisco Cisco Content Security Management Appliance M1070 Mode D'Emploi

During a full initial backup, a backup of 800GB may take up to 10 hours. Daily backups, may take up to 
3 hours each. Weekly and monthly backups may take longer. These numbers may vary. 

After the initial backup, the backup process transfers only files that have changed since the last backup. 
Thus, subsequent backups should take less time than the initial backup. The time required for subsequent 
backups depends on the amount of data accumulated, how many files have changed, and to what extent 
the files have changed since the last backup. 

Backing up a Security Management appliance copies the active data set from the ‘source’ Security 
Management appliance to a ‘target’ Security Management appliance with minimum disruption on the 
originating ‘source’ appliance. 

Communication 
between source 
and target 
appliances 

The source and target Security Management appliances must be able to 
communicate using SSH. Therefore: 

Port 22 must be open on both appliances. By default, this port is opened when 
you run the System Setup Wizard. 

The Domain Name Server (DNS) must be able to resolve the host names of both 
appliances using both A records and PTR records. 

Target appliance 
must not be in 
service 

Only the primary appliance should pull data from managed email and web security 
appliances. To ensure this, see 

Prevent the Target Appliance From Pulling Data 

Directly from Managed Appliances, page 14-13

. 

Also, cancel any scheduled configuration publishing jobs on the backup appliance.