SYSTEMS AND METHODS FOR TRANSFORMATION OF LOGICAL DATA OBJECTS FOR STORAGE

摘要

Systems and methods for compressing a raw logical data object (201) for storage in a storage device operable with at least one storage protocol, creating, reading, writing, optimizatic in and restoring thereof. Compressing the raw logical data object (201) comprises creating in the storage device a compressed logical data object (203) comprising a header (204) and one or more allocated compressed sections with predefined size (205-1-205-2); compressing one or more sequentially obtained chunks of raw data (202-1-202-6) corresponding to the raw logical data object (201) thus giving rise to the compressed data chunks (207-1-207-6); and sequentially accommodating the processed data chunks into: said compressed sections (205-1-205-2) in accordance with an order said chunks received, wherein said compressed sections serve as atomic elements of compression/decompression operations during input/output transactions on the logical data object.

主权项

1. A method for optimization of a compressed logical data object including a plurality of storage sections storing compressed data, said method comprising:
receiving, by a processor, a request to store data in the compressed logical data object; searching the plurality of storage sections to identify a storage section comprising a mixture of outdated compressed data and live compressed data, and including greater than a predetermined percentage of the outdated compressed data; decompressing all of the outdated compressed data and all of the live compressed data in the storage section to generate a first portion of outdated data and a second portion of live data; deleting the first portion of outdated data; recompressing the second portion of live data; storing the recompressed second portion of live data in a different storage section; and releasing the storage section.