Method and system for transformation of logical data objects for storage

A method of writing data to a transformed logical data object stored in a storage device operable with at least one storage protocol, said transformed logical data object comprising a header, an index section and one or more accommodation sections with predefined size, said sections sequentially accommodating transformed data chunks resulting from transformation of a respective logical data object, the method comprising:

• (a) identifying among a plurality of requests addressed to the storage device two or more “write” requests addressed to the same logical data object;
• (b) deriving data chunks corresponding to said identified “write” requests and processing the derived data chunks, thereby giving rise to transformed data chunks;
• (c) grouping the transformed data chunks in accordance with the order the requests have been received, said grouping provided in accordance with a predefined criteria, thus giving rise to a group of transformed data chunks;
• (d) generating a grouped “write” request to the storage device for sequentially accommodating said group of transformed data chunks in respective transformed logical object in accordance with the order these and previous chunks were received;
• and
• (e) updating the index section in a manner facilitating one-to-one relationship between the data in derived data chunks and the data to be read from the data chunks accommodated in the transformed logical object,
• wherein the operations are provided by a transformation system operatively coupled to a plurality of clients and to said at least one storage device.

A transformation system capable of transforming a logical data object for storage in a storage device, said system operatively coupled to a plurality of clients and to at least one storage device configured to accommodate data transformed by the transformation system, the system comprising:

• (a) means for creating in said at least one storage device a plurality of transformed logical data objects (LOs), each given transformed LO corresponding to a respective original logical data object (LO) and configured to sequentially accommodate a plurality of variable size data chunks corresponding to the original LO, transformed by the transformation system and accommodated in accordance with an order in which said chunks are received,
• (b) means for identifying among a plurality of requests addressed to the storage device two or more “write” requests addressed to the same logical data object;
• (c) means for deriving data chunks corresponding to said identified “write” requests and processing the derived data chunks, thereby giving rise to transformed data chunks;
• (d) means for grouping the transformed data chunks in accordance with the order the requests have been received, said grouping provided in accordance with a predefined criteria, thus giving rise to a group of transformed data chunks;
• (e) means for generating a grouped “write” request to the storage device for accommodating said group of transformed data chunks in respective transformed LO whilst keeping the order the data chunks have been received;
• and
• (f) means for enabling mapping between the data in the original LO and the data accommodated in the transformed LO in a manner facilitating one-to-one relationship between the data in the derived data chunks and the data to be read from the transformed logical object.