Patent application number | Description | Published |
20100312800 | Segment deduplication system with compression of segments - A system for storing compressed data comprises a processor and a memory. The processor is configured to receive a compressed segment. The compressed segment is determined by breaking a data stream, a data block, or a data file into one or more segments and compressing each of the one or more segments. The processor is further configured to determine whether the compressed segment has been previously stored, and in the event that the compressed segment has not been previously stored, store the compressed segment. The memory is coupled to the processor and configured to provide the processor with instructions. | 12-09-2010 |
20100313040 | Segment deduplication system with encryption and compression of segments - A system for storing encrypted compressed data comprises a processor and a memory. The processor is configured to determine whether an encrypted compressed segment has been previously stored. The encrypted compressed segment was determined by breaking a data stream, a data block, or a data file into one or more segments and compressing and then encrypting each of the one or more segments. The processor is further configured to store the encrypted compressed segment in the event that the encrypted compressed segment has not been previously stored. The memory is coupled to the processor and configured to provide the processor with instructions. | 12-09-2010 |
20120226961 | EFFICIENT REDUNDANT MEMORY UNIT ARRAY - A method of storing data is disclosed. A set of data blocks, including a plurality of proper subsets of data blocks, is stored. A plurality of first-level parity blocks is generated, wherein each first-level parity block is generated from a corresponding proper subset of data blocks within the plurality of proper subsets of data blocks without reference to other data blocks not in the corresponding proper subset. A second-level parity block is generated, wherein the second level parity block is generated from a plurality of data blocks included in at least two of the plurality of proper subsets of data blocks, and wherein recovery of a lost block in a given proper subset of data blocks is possible without reference to any data blocks not in the given proper subset. | 09-06-2012 |
20130024687 | SELECTIVE SHREDDING IN A DEDUPLICATION SYSTEM - Making a target file impractical to be retrieved comprises decrypting a directory manager file using a first directory manager file key. The directory manager file includes an encryption key for a segment that is used when reconstructing a target file. The directory manager file is modified by deleting a reference to the target file. The reference includes a file encryption key. Retrieving the target file is made impractical by the deletion of the reference to the target file in the directory manager file. The modified directory manager file is encrypted using a second directory manager file key. | 01-24-2013 |
20140237232 | SELECTIVE SHREDDING IN A DEDUPLICATION SYSTEM - Making a target file impratical to be retrieved comprises decrypting a directory manager file using a first directory manager file key. The directory manager file includes an encryption key for a segment that is used when reconstructing a target file. The directory manager file is modified by deleting a reference to the target file. The reference includes a file encryption key. Retrieving the target file is made impractical by the deletion of the reference to the target file in the directory manager file. The modified directory manager file is encrypted using a second directory manager file key. | 08-21-2014 |
20140325216 | SEGMENT DEDUPLICATION SYSTEM WITH ENCRYPTION AND COMPRESSION OF SEGMENTS - A system for storing encrypted compressed data comprises a processor and a memory. The processor is configured to determine whether an encrypted compressed segment has been previously stored. The encrypted compressed segment was determined by breaking a data stream, a data block, or a data file into one or more segments and compressing and then encrypting each of the one or more segments. The processor is further configured to store the encrypted compressed segment in the event that the encrypted compressed segment has not been previously stored. The memory is coupled to the processor and configured to provide the processor with instructions. | 10-30-2014 |
20140330797 | SEGMENT DEDUPLICATION SYSTEM WITH COMPRESSION OF SEGMENTS - A system for storing compressed data comprises a processor and a memory. The processor is configured to receive a compressed segment. The compressed segment is determined by breaking a data stream, a data block, or a data file into one or more segments and compressing each of the one or more segments. The processor is further configured to determine whether the compressed segment has been previously stored, and in the event that the compressed segment has not been previously stored, store the compressed segment. The memory is coupled to the processor and configured to provide the processor with instructions. | 11-06-2014 |