About MSDP client deduplication requirements and limitations
NetBackup does not support the following for client-side deduplication:
Multiple copies per job. For the jobs that specify multiple copies, the backup images are sent to the storage server and may be deduplicated there. Multiple copies are configured in a NetBackup backup policy.
NDMP hosts. The backup jobs fail if you try to use client-side deduplication for NDMP hosts.
For the systems on which NetBackup supports client-side deduplication, see the NetBackup compatibility lists.
The clients that deduplicate their own data conform to the standard NetBackup release level compatibility. The NetBackup Release Notes for each release defines the compatibility between NetBackup releases. To take advantage of any new features, improvements, and fixes, Veritas recommends that the clients and the servers be at the same release and revision.