Performing Document Level Backups and Restores › Document Level Backup › Multiplexing

Multiplexing

Multiplexing is a process in which data from multiple sources is written to the same media simultaneously. When a job that has multiple sources is submitted with the multiplexing option enabled, it is broken into child jobs as follows:

• For Exchange Server 2003 or 2007, the job is broken into one child job for each storage group
• For Exchange Server 2010, the job is broken into one child for each database

These child jobs write data to the same media simultaneously. If you enable multiplexing, Document Level backups from one or more storage groups on one or more machines can be backed up simultaneously in a single job to one device.

For more information on multiplexing, see the Administration Guide.