NetBackup for Sybase multiplexing considerations - duplicating tapes
If you duplicate a tape with backup files on it that was created with Sybase striping and the NetBackup multiplex feature, make sure to use multiplexing when duplicating the tape.
Caution:
NetBackup tape duplication must be performed with the multiplex option when Sybase striping and the NetBackup multiplex (MPX) feature are used for a Sybase backup. A problem occurs when multiple Sybase stripes are multiplexed to a single tape and then the tape is duplicated without using the -mpx option. The duplicated tape must be created with the -mpx option on the bpduplicate command. This is also accessible as the checkbox on the Duplicate Backup Images window. In addition, all of the backups from the original Sybase multiplexing session must be included in the duplicated multiplexed group.