| Patent application number | Description | Published |
|---|
| 20080208933 | MULTI-CLIENT CLUSTER-BASED BACKUP AND RESTORE - Backup and restore technology comprising a backup engine, one or more client backup modules coupled to the backup engine via a backup protocol, and a backup database coupled to the backup engine, the backup database including a set of clusters, the set of clusters forming one or more backups, wherein each cluster of the set of clusters is unique such that single-instance storage across clients is achieved. | 08-28-2008 |
| 20090193093 | REDUCING UNWANTED AND UNSOLICITED ELECTRONIC MESSAGES BY EXCHANGING ELECTRONIC MESSAGE TRANSMISSION POLICIES AND SOLVING AND VERIFYING SOLUTIONS TO COMPUTATIONAL PUZZLES - The present invention provides for generating inputs that can be provided to a message classification module to facilitate more reliable classification of electronic messages, such as, for example, as unwanted and/or unsolicited. In one embodiment, a sending messaging server provides an appropriate response to address verification data thereby indicating a reduced likelihood of the sending messaging server using a forged network address. In another embodiment, it is determined if a messaging server is authorized to send electronic messages for a domain. In yet another embodiment, electronic message transmission policies adhered to by a domain are identified. In yet a further embodiment, a sending computer system expends computational resources to solve a computational puzzle and includes an answer document in an electronic message. A receiving computer system receives the electronic message and verifies the answer document. | 07-30-2009 |
| 20100262802 | Reclamation of Thin Provisioned Disk Storage - A thin provisioned storage system may have a file system manager that presents a logical storage system to a user and a storage management system that manages physical storage devices. When a block of data is freed at the logical layer, the file system manager may identify the freed block and send a command to the physical layer. The physical layer may identify the corresponding physical block or blocks and free those blocks on the physical layer. The storage management system may use a table to manage the location of blocks of data across multiple physical storage devices. | 10-14-2010 |
| 20100280998 | METADATA FOR DATA STORAGE ARRAY - A data storage array may be made up of several storage devices, each of which may contain array metadata that may allow portions of the storage array to be used. A system may have a file system manager that may receive and respond to file system commands and a storage device manager that may store data on the several storage devices. Array metadata defining where data is stored within the storage array is stored on each device within the array. A policy engine may identify data to be stored on the array and determine if the data contains array metadata or other types of data and may store the data on every device, devices having specific characteristics, two or more devices, or one device. | 11-04-2010 |
| 20100325519 | CRC For Error Correction - A cyclic redundancy check (CRC) or other function may be used as an error correction mechanism by analyzing CRC results against a table of CRC results for potential flipped bits. From the table, an incorrect bit may be identified and corrected. Two or more bits may be identified and corrected by testing the XOR of the calculated CRC results with two or more results within the table to identify two or more bits that are incorrect. In one embodiment, data stored on a data storage system may be stored with a calculated CRC for each block of data. When the data is read from the storage system, the CRC function may be used to verify data integrity and to identify one or more bits that are incorrect in the retrieved data. | 12-23-2010 |
| 20110188406 | Message Transport System Using Publication and Subscription Mechanisms - A message transport system may use a publication subscription mechanism to connect nodes and transport messages through the nodes. Each node may establish connections to other nodes, and subscription requests and publication notifications may be passed across the nodes to establish paths for messages. When a message is published, the message may be passed over those connections for which a subscription is active. A path identifier may be added to the message as it is passed between nodes, and the path identifier may be used by a subscribing node for identification of the information being received. When a subscriber notification is removed, the path may be deconstructed across multiple nodes. The nodes may be arranged such that each node is agnostic to any connections past the nodes to which it is connected, and may allow any node to subscribe to any information published within the network. | 08-04-2011 |
| 20110218967 | Partial Block Based Backups - A block based backup system may perform several partial backups to incrementally transfer backup information to a backup system. Each partial backup may build on the previous backup and the partial backups may be marked as unable to be used for restoration. In some cases, the partial backups may be portions of a file system snapshot, while in other cases, the partial backups may include any changes that occurred since a last partial backup. The size of the partial backups may be dynamically changed depending on network connections, workloads, and other factors. | 09-08-2011 |
