Best practices: About disk staging and NetBackup performance

Duplicating to disk or tape from AdvancedDisk or MSDP is supported. However, when the source images reside on an MSDP pool, the rehydration process can lengthen the time required to complete the duplication process, specifically when the aforementioned images are duplicated to tape or to another storage target that does not support the use of deduplication technology.

That said, if the backup images reside on MSDP, then duplicating to another disk or S3 storage target which support direct duplication of deduplicated images without rehydration will typically be much faster. The aforementioned process is referred to as Optimized Duplication or Opt-Dup.