Systems and methods for transformation of logical data objects for storage

A system for compressing a logical data object for storage in a storage device configured to operate with at least one storage protocol, said system comprising:

• a processor;
• and
• memory coupled to the processor, wherein the memory is configured to store computer code that, when executed by the processor, causes the processor to:
• a) create, in the storage device, a compressed logical data object comprising one or more allocated compressed sections with a predefined size,
• b) receive variable size chunks of raw data corresponding to the compressed raw logical data object, wherein the received chunks of raw data are in non-compressed form,
• c) sequentially store said received chunks of raw data in non-compressed form in a compressed section in accordance with an order said chunks of raw data in non-compressed form are received,
• d) provide an indication that the compressed section holds data in a non-transformed form,
• e) map the data in the logical data object and the data stored in the allocated compressed sections,
• f) scan the compressed logical data object to identify one or more compressed sections holding data in non-compressed form,
• g) compress each data chunk stored in each identified compressed section, and
• h) sequentially store the data chunks including compressed data in one or more newly allocated compressed sections,
• wherein the compression is provided via an adaptive dictionary and the data chunks are stored in the newly allocated compressed sections via the adaptive dictionary.

A computer program product comprising a non-transitory computer readable storage medium including a computer readable program code embodied therein for compressing a logical data object for storage in a storage device configured to operate with at least one storage protocol, said computer program product comprising:

• a) computer code for creating, in the storage device, a compressed logical data object comprising one or more allocated compressed sections with a predefined size;
• b) computer code for receiving variable size chunks of raw data corresponding to the compressed raw logical data object, wherein the received chunks of raw data are in non-compressed form;
• c) computer code for sequentially storing said received chunks of raw data in non-compressed form in a compressed section in accordance with an order said chunks of raw data in non-compressed form are received;
• d) computer code for providing an indication that the compressed section holds data in a non-transformed form;
• e) computer code for mapping the data in the logical data object and the data stored in the allocated compressed sections;
• f) computer code for scanning the compressed logical data object to identify one or more compressed sections holding data in non-compressed form;
• g) computer code for compressing each data chunk stored in each identified compressed section;
• and
• h) computer code for sequentially storing data chunks including compressed data in one or more newly allocated compressed sections,
• wherein the compression is provided via an adaptive dictionary and the data chunks are stored in the newly allocated compressed sections via the adaptive dictionary.