Specify Additional Dump Devices with the stripe on Clause

Striping allows you to use multiple dump devices for a single dump or load command. Use a separate stripe on clause to specify the name (and, if desired, the characteristics) of each device.

Each dump or load command can have multiple stripe on clauses.

See the Reference Manual: Commands

• Dumps to, and Loads from, Multiple Devices
  Backup Server divides the database into approximately equal portions, and sends each portion to a different device.
• Using Fewer Devices to Load Than to Dump
  You can load a database or log even if one of your dump devices becomes unavailable between the dump and load. Specify fewer stripe clauses in the load command than you did in the dump command.
• Specifying the Characteristics of Individual Devices
  Use a separate at server_name clause for each stripe device attached to a remote Backup Server.