Virtual Block Mapping

Albireo Virtual Data Optimizer (VDO) provides block-level virtualization as part of a complete deduplication stack for Linux. Virtualized blocks support deduplication by allowing multiple identical ‘virtual’ blocks to point to a single physical data location.  This functionality may be layered directly on top of physical storage, or it may interoperate with other facilities such as logical volume managers, block encryption services, or remote device access services. Albireo VDO maintains a consistent view of all mapping information for the virtualized storage.