Home > Storage > PowerScale (Isilon) > Product Documentation > Data Protection > Dell PowerScale SyncIQ: Architecture, Configuration, and Considerations > Small File Storage Efficiency (SFSE) and SyncIQ
OneFS Small File Storage Efficiency (SFSE) provides a feature for small files in OneFS, packing them into larger files, resulting in increased storage efficiency. If a SyncIQ policy is configured for an SFSE dataset, the data is replicated to the target cluster. However, the SFSE dataset is unpacked on the source cluster before replication. If the target cluster has SFSE enabled, the dataset is packed when the next SmartPools job runs on the target cluster. If the target cluster does not have SFSE enabled, the dataset remains unpacked.