Systems and methods for transformation of logical data objects for storage

A system for recovery of a compressed logical data object including one or more compressed storage sections associated with one or more index sections, said system comprising:

• a processor;
• and
• memory coupled to said processor, wherein the processor is configured to store computer code that, when executed by the processor, causes the processor to:
• recognize a recovery status when opening the compressed logical data object,
• initiate a recovery process in response to recognizing said recovery status,
• search the compressed logical object to discover one or more non-indexed compressed data chunks comprising at least one log that does not include a corresponding log record in any of the one or more index sections,
• decompress each non-indexed compressed data chunk associated with the at least one log to generate an uncompressed data chunk for each non-indexed compressed data chunk, each non-indexed compressed data chunk including a respective size and a respective data content,
• re-compress each uncompressed data chunk to generate a re-compressed data chunk for each uncompressed data chunk,
• generate an entry in an index section of the one or more index sections for each re-compressed data chunk such that each non-indexed compressed section is indexed in the index section, and
• storing each re-compressed data chunk in a compressed storage section of the one or more compressed storage sections wherein:
• each re-compressed data chunk subsequent to the re-compressing process maintains the same respective size as its corresponding compressed data chunk prior to the decompressing process, and
• each re-compressed data chunk subsequent to the re-compressing process maintains the same respective data content as its corresponding compressed data chunk prior to the decompressing process.

A computer program product comprising a computer readable storage medium including computer readable program code embodied therein for recovery of a compressed logical data object including one or more compressed storage sections associated with one or more index sections, said computer program product comprising:

• computer code for recognizing, by a processor, a recovery status when opening the compressed logical data object;
• computer code for initiating a recovery process in response to recognizing said recovery status;
• computer code for searching the compressed logical object to discover one or more non-indexed compressed data chunks comprising at least one log that does not include a corresponding log record in any of the one or more index sections;
• computer code for decompressing each non-indexed compressed data chunk associated with the at least one log to generate an uncompressed data chunk for each non-indexed compressed data chunk, each non-indexed compressed data chunk including a respective size and a respective data content;
• computer code for re-compressing each uncompressed data chunk to generate a re-compressed data chunk for each uncompressed data chunk;
• computer code for generating an entry in an index section of the one or more index sections for each re-compressed data chunk such that each non-indexed compressed section is indexed in the index section;
• and
• computer code for storing each re-compressed data chunk in a compressed storage section of the one or more compressed storage sections wherein:
• each re-compressed data chunk subsequent to the compressing process maintains the same respective size as its corresponding compressed data chunk prior to the decompressing process, and
• each re-compressed data chunk subsequent to the compressing process maintains the same respective data content as its corresponding compressed data chunk prior to the decompressing process.