Windows Server 2012 introduces new storage features including the iSCSI Target role service, Storage Spaces, deduplication, and improvements to SMB 3.0. Storage Spaces allows the aggregation of disks into storage pools from which virtual disks can be created using mirroring or parity. Deduplication reduces the storage space used by identifying and removing duplicate data blocks. SMB 3.0 in Windows Server 2012 provides faster file sharing capabilities that can match or exceed block-level protocols like iSCSI.