NetBackup status code: 641
Explanation: The media type that was specified in the target storage unit is invalid for synthetic backup. Synthetic backup images can only be written to disk, disk staging, and Media Manager type of storage units.
Recommended Action: Ensure that the target storage unit that was configured for synthetic backup is a disk, disk staging, or Media Manager type (not NDMP type). Rerun synthetic backup with the appropriate storage unit.
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