About using alternate read server
An alternate read server is a server used to read a backup image originally written by a different media server.
You can avoid sending data over the network during duplication by specifying an alternate read server if the alternate read server is as follows:
Connected to the robot that has the original backups (the source volumes).
Connected to the robot that contains the destination storage units.
Note:
Alternate read servers apply to NetBackup Enterprise Server only.
Note:
If the destination storage unit is not connected to the alternate read server, you send data over the network.
Figure: Tapes written by one media server can be read by another shows non-disk images that are written by media servers A, B, C, and D and are read by the alternate read server.
