| Patent application number | Description | Published |
|---|
| 20080243939 | MANAGING COPIES OF DATA - A method in a computer system for retrieving data from one of multiple copies of the data is provided, referred to as the data management system. The data management system receives a request identifying at least one data object to be accessed. Then, the data management system queries a metabase to locate data copies that contain the identified at least one data object, wherein the data copies are created from similar source data, and wherein for each data copy the metabase contains an indication of the availability of the copy relative to other copies. Next, the data management system determines one of the located data copies to use to access the identified at least one data object, wherein the determination is made based on the indicated availability contained in the metabase for each of the located data copies. Then, the data management system accesses the identified at least one data object using the determined one of the located data copies. | 10-02-2008 |
| 20090043830 | SYSTEMS AND METHODS FOR STORED DATA VERIFICATION - Methods and systems are described for verifying stored data by receiving a first set of metadata associated with a first set of stored data, generating a second set of metadata associated with a second set of stored data which is associated with the first set of stored data, and comparing the first set of metadata and second set of metadata. Alternatively, the storage system can also generate a first set of metadata associated with a first set of stored data, generate a second set of stored data which is a copy of the first set of stored data, generate a second set of metadata associated with the second set of stored data, and compare the first set of metadata and the second set of metadata. | 02-12-2009 |
| 20090172319 | SYSTEMS AND METHODS FOR RECOVERING ELECTRONIC INFORMATION FROM A STORAGE MEDIUM - In one embodiment of the invention, a method is provided for retrieving certain electronic information previously stored on certain storage media after a threshold set in the storage retention criteria has been exceeded in an electronic information storage system that stores electronic information on storage media in accordance with a storage retention criteria is provided. The method includes storing a record in a memory associated with a system manager that assigns the storage retention criteria to the certain electronic data, designating the storage media available for overwrite after the threshold set in the storage retention policy has been exceeded, identifying the certain storage media available for overwrite, and retrieving information from the certain media after the threshold set in the storage retention policy has been exceeded. | 07-02-2009 |
| 20090187711 | SYSTEM AND METHOD FOR PERFORMING AUXILIARY STORAGE OPERATIONS - Systems and methods for protecting data in a tiered storage system are provided. The storage system comprises a management server, a media management component connected to the management server, a plurality of storage media connected to the media management component, and a data source connected to the media management component. Source data is copied from a source to a buffer to produce intermediate data. The intermediate data is copied to both a first and second medium to produce a primary and auxiliary copy, respectively. An auxiliary copy may be made from another auxiliary copy. An auxiliary copy may also be made from a primary copy right before the primary copy is pruned. | 07-23-2009 |
| 20100100528 | STORED DATA REVERIFICATION MANAGEMENT SYSTEM AND METHOD - A system and method are provided for verifying data copies and reverifying the copies over the life span of media according to a verification policy. Characteristics of media and use of media are tracked to provide metrics which may be used to dynamically reevaluate and reassign verification policies to optimize media usage. Copies that fail verification operations may be repaired by repeating a storage operation for recent copies or by substituting a close temporal copy of the failed copy. | 04-22-2010 |
| 20100287192 | MANAGING COPIES OF DATA - A method in a computer system for retrieving data from one of multiple copies of the data is provided, referred to as the data management system. The data management system receives a request identifying at least one data object to be accessed. Then, the data management system queries a metabase to locate data copies that contain the identified at least one data object, wherein the data copies are created from similar source data, and wherein for each data copy the metabase contains an indication of the availability of the copy relative to other copies. Next, the data management system determines one of the located data copies to use to access the identified at least one data object, wherein the determination is made based on the indicated availability contained in the metabase for each of the located data copies. Then, the data management system accesses the identified at least one data object using the determined one of the located data copies. | 11-11-2010 |
| 20110093672 | SYSTEMS AND METHODS FOR RECOVERING ELECTRONIC INFORMATION FROM A STORAGE MEDIUM - In one embodiment of the invention, a method is provided for retrieving certain electronic information previously stored on certain storage media after a threshold set in the storage retention criteria has been exceeded in an electronic information storage system that stores electronic information on storage media in accordance with a storage retention criteria is provided. The method includes storing a record in a memory associated with a system manager that assigns the storage retention criteria to the certain electronic data, designating the storage media available for overwrite after the threshold set in the storage retention policy has been exceeded, identifying the certain storage media available for overwrite, and retrieving information from the certain media after the threshold set in the storage retention policy has been exceeded. | 04-21-2011 |
| 20110125715 | MANAGING COPIES OF DATA - A method in a computer system for retrieving data from one of multiple copies of the data is provided, referred to as the data management system. The data management system receives a request identifying at least one data object to be accessed. Then, the data management system queries a metabase to locate data copies that contain the identified at least one data object, wherein the data copies are created from similar source data, and wherein for each data copy the metabase contains an indication of the availability of the copy relative to other copies. Next, the data management system determines one of the located data copies to use to access the identified at least one data object, wherein the determination is made based on the indicated availability contained in the metabase for each of the located data copies. Then, the data management system accesses the identified at least one data object using the determined one of the located data copies. | 05-26-2011 |
