In a single-server environment, backup and recovery take place locally. But in a distributed database, backup and recovery also affect remote locations.
The iSeries™ server allows individual tables, collections, or groups of collections to be backed up and recovered. Although backup and recovery can only be done locally, you might want to plan to have less critical data on a server that does not have adequate backup support. Backup and recovery procedures must be consistent with data that might exist on more than one application server. Because you have more than one server in the network, you might want to save such data to a second server so that it is always available to the network in some form. Strategies such as these need to be planned and laid out specifically before a database is distributed across the network.