Metadata-based data copying

A computerized apparatus, comprising control circuitry that includes a set of processors coupled to memory, the control circuitry constructed and arranged to:

• receive a request to copy a set of data from a source range to a destination range;
• identify a chunk of the source range, the chunk including multiple logical blocks that are mapped, through a series of source-mapping pages, to a set of virtual pages that point to physical data of the chunk;
• copy the series of source-mapping pages to provide a corresponding series of destination-mapping pages pointed to by the destination range, the corresponding series of destination-mapping pages mapping multiple logical blocks in a corresponding chunk of the destination range to the set of virtual pages, the destination range thereby pointing to the physical data of the chunk of the source range and providing a copy thereof.

A computer program product including a set of non-transitory, computer-readable media having instructions which, when executed by control circuitry of a computerized apparatus, cause the computerized apparatus to perform a method of copying data, the method comprising:

• receiving a request to copy a set of data from a source range to a destination range;
• identifying a chunk of the source range, the chunk including multiple logical blocks that are mapped, through a series of source-mapping pages, to a set of virtual pages that point to physical data of the chunk;
• copying the series of source-mapping pages to provide a corresponding series of destination-mapping pages pointed to by the destination range, the corresponding series of destination-mapping pages mapping multiple logical blocks in a corresponding chunk of the destination range to the set of virtual pages, the destination range thereby pointing to the physical data of the chunk of the source range and providing a copy thereof.