Home > Data Protection > PowerProtect Data Manager > Dell PowerProtect Data Manager: Dynamic NAS Protection > Intelligent auto slicer for NAS protection
The NAS file-share auto slicer is a new library that is embedded in the Data Manager NAS agent. The slicer splits NAS assets (NAS share, a file system) into multiple subassets in preparation for multistream data movement to PowerProtect DD series. Slices are created using parallel threads, and each slice is backed up concurrently using available NAS Protection Engine containers and moved to a PowerProtect DD series appliance.
The slicer partitions NAS assets dynamically before each backup. Based on backup history and changes in the content of the NAS asset being sliced, relevant slices are added, removed, or rebalanced. Periodically, unbalanced trees are automatically managed as content changes over time. No manual reconfiguration is required. The default slice size is 200 GB or 1 million files (tolerance of 30%).
From Data Manager 19.15, directories with files greater than 100k will create additional chunks under the slice. During the backup, metadata will be created and one stream will be assigned per chunk (sub-slice). The addition of chunks to the auto slicer workflow improves the stream utilization and reduces the time to perform filesystem crawls in high density filesystems.
Full and incremental behavior: