About protecting the MSDP data
Veritas recommends the following methods to protect the deduplicated backup data:
Use NetBackup optimized duplication to copy the images to another deduplication node at an off-site location.
Optimized duplication copies the primary backup data to another deduplication pool. It provides the easiest, most efficient method to copy data off-site yet remain in the same NetBackup domain. You then can recover from a disaster that destroys the storage on which the primary copies reside by retrieving images from the other deduplication pool.
Use NetBackup replication to copy the deduplicated data to another NetBackup domain off-site.
Veritas also recommends that you back up the MSDP catalog.