Patent application number | Description | Published |
20110270809 | HEAT INDICES FOR FILE SYSTEMS AND BLOCK STORAGE - Techniques and mechanisms are provided to allow for selective optimization, including deduplication and/or compression, of portions of files and data blocks. Data access is monitored to generate a heat index for identifying sections of files and volumes that are frequently and infrequently accessed. These frequently used portions may be left non-optimized to reduce or eliminate optimization I/O overhead. Infrequently accessed portions can be more aggressively optimized. | 11-03-2011 |
20110270810 | METHODS AND APPARATUS FOR ACTIVE OPTIMIZATION OF DATA - Techniques and mechanisms are provided to support live file optimization. Active I/O access to an optimization target is monitored during optimization. Active files need not be taken offline or made unavailable to an application during optimization and retain the ability to support file operations such as read, write, unlink, and truncate while an optimization engine performs deduplication and/or compression on active file ranges. | 11-03-2011 |
20120084270 | STORAGE OPTIMIZATION MANAGER - Techniques and mechanisms provide a storage optimization manager. Data may be optimized and maintained on various nodes in a cluster. Particular nodes may be overburdened while other nodes remain relatively unused. Techniques are provided to efficiently optimize data onto nodes to enhance operational efficiency. Data access requests for optimized data are monitored and managed to allow for intelligent maintenance of optimized data. | 04-05-2012 |
20120084527 | DATA BLOCK MIGRATION - Techniques and mechanisms are provided for migrating data blocks around a cluster during node addition and node deletion. Migration requires no downtime, as a newly added node is immediately operational while the data blocks are being moved. Blockmap files and deduplication dictionaries need not be updated. | 04-05-2012 |
20130019061 | DATA TRANSFER REDUCTION IN SCALE OUT ARCHITECTURESAANM Jayaraman; VinodAACI San FranciscoAAST CAAACO USAAGP Jayaraman; Vinod San Francisco CA USAANM Dinkar; AbhijitAACI San JoseAAST CAAACO USAAGP Dinkar; Abhijit San Jose CA US - Mechanisms are provided for data transfer reduction in scale out architectures. When a compute node receives a write input/output (I/O) request for a data stream, the compute node separates the data stream into chunks and generates fingerprints for the individual chunks. Fingerprints are then sent to a scale out node and compared to fingerprints of chunks already maintained at the scale out node. Write data transfers are only made for chunks not already maintained at the scale out node. For a read I/O request for a data stream, fingerprints for chunks of the data stream are requested by the compute node from a scale out node. Fingerprints received are compared to fingerprints of chunks already maintained at the compute node and read data transfers are only made for chunks not already maintained at the compute node. | 01-17-2013 |
20140095455 | HEAT INDICES FOR FILE SYSTEMS AND BLOCK STORAGE - Techniques and mechanisms are provided to allow for selective optimization, including deduplication and/or compression, of portions of files and data blocks. Data access is monitored to generate a heat index for identifying sections of files and volumes that are frequently and infrequently accessed. These frequently used portions may be left non-optimized to reduce or eliminate optimization I/O overhead. Infrequently accessed portions can be more aggressively optimized. | 04-03-2014 |
20140258237 | HANDLING RESTORES IN AN INCREMENTAL BACKUP STORAGE SYSTEM - Techniques and mechanisms are provided for storing data in a backup storage system. According to various embodiments, a first blockmap in a backup storage system may be identified. The first blockmap may correspond with a first restore point. The first blockmap may identify a first plurality of data segments. Each of the first plurality of data segments may have associated therewith a respective storage location in the backup storage system. The first blockmap may be compared with a designated storage system state to identify a subset of the first plurality of data segments that each correspond with a respective matching data segment in the designated storage system state. A second blockmap may be stored in the backup storage system. The second blockmap may correspond with a second restore point. The second blockmap may include the identified subset of the first plurality of data segments. | 09-11-2014 |
20150019515 | HEAT INDICES FOR FILE SYSTEMS AND BLOCK STORAGE - Techniques and mechanisms are provided to allow for selective optimization, including deduplication and/or compression, of portions of files and data blocks. Data access is monitored to generate a heat index for identifying sections of files and volumes that are frequently and infrequently accessed. These frequently used portions may be left non-optimized to reduce or eliminate optimization I/O overhead. Infrequently accessed portions can be more aggressively optimized. | 01-15-2015 |