Transaction Log Backup (i.e, Audit File, Journal) Patents (Class 707/648)
  • Patent number: 8219582
    Abstract: A system, a method, and a computer readable media for identifying a user-initiated log file record in a log file are provided. The log file has a user-initiated log file record and a repeating pattern of log file records automatically generated by a software program. The system allows a user to identify first and second timestamp values corresponding to first and second times which identify a time interval of interest in the log file. The system further analyzes the log file to identify the user-initiated log file record having a timestamp value between the first and second timestamp values. The system further identifies the repeating pattern of log file records in the log file.
    Type: Grant
    Filed: April 25, 2008
    Date of Patent: July 10, 2012
    Assignee: International Business Machines Corporation
    Inventors: Danny Yen-Fu Chen, David A. Cox, Sheryl S. Kinstler, Fabian F. Morgan
  • Publication number: 20120173490
    Abstract: A method of recovering a database includes providing a computer having a processor and providing a backup database including a last change marker. The method also includes extracting, using the processor, the last change marker from the backup database and providing transaction logs. Each transaction of the transaction logs includes input data, processed data, and a change marker. The method further includes sorting, using the processor, the transactions of the transaction logs using the change markers, replaying, using the processor, one or more of the transactions of the transaction logs, and generating a recovered database.
    Type: Application
    Filed: December 30, 2010
    Publication date: July 5, 2012
    Applicant: VeriSign, Inc.
    Inventors: James Fred Gould, Hui Xu Griffiths
  • Patent number: 8214367
    Abstract: Systems for recording, searching, and outputting display information are provided. In some embodiments, systems for recording display information are provided. The systems include a virtual display that: intercepts display-changes describing changes to be made to a state of a display; sends the display-changes to a client for display; records the display-changes; and a context recorder that records context information describing a state of the display derived from a source independently of the display changes and independently of screen-images. In some embodiments, the systems further include a display system that generates an output screen-image based at least in part on at least one of the display-changes and in response to a search of the context information. In some embodiments, the virtual display further records screen-images; and the display system further generates the output screen-image based at least in part on a recorded-screen-image of the recorded screen-images.
    Type: Grant
    Filed: February 27, 2008
    Date of Patent: July 3, 2012
    Assignee: The Trustees of Columbia University in the City of New York
    Inventors: Ricardo Baratto, Oren Laadan, Dan Phung, Shaya Joseph Potter, Jason Nieh
  • Patent number: 8214333
    Abstract: Provided is a storage system including: a first interface connected to a host computer; a second interface connected to a manager terminal; a control unit connected to the first interface and the second interface and equipping a processor and a memory; and one or more disk drives in which data that is requested to read by the host computer is stored, in which the control unit detects an access from the host computer to the first interface and an access from the manager terminal to the second interface, and generates log data of operations according to the accesses. Accordingly, log data concerning every action and every operation of the storage system is maintained and stored.
    Type: Grant
    Filed: January 5, 2009
    Date of Patent: July 3, 2012
    Assignee: Hitachi, Ltd.
    Inventors: Norihiko Kawakami, Tetsuya Shirogane
  • Patent number: 8204861
    Abstract: This disclosure describes, generally, methods and systems for implementing event driven audit logging. The method includes establishing, at an audit logging system, audit logging framework configured to provide application independent connectivity and further configured to provide event driven audit logging. The method further includes receiving, at the audit logging system, a selection of an application to provide event driven auditing, enabling event driven auditing for the selected application, and receiving a selection of event types to enable for auditing by the audit logging framework. Furthermore, the method includes based on the selected event types, tracking the application actions associated with the selected events, creating an event log for the application, and providing access to the event log.
    Type: Grant
    Filed: August 7, 2009
    Date of Patent: June 19, 2012
    Assignee: Oracle International Corporation
    Inventors: Bhupinder Sondhi, Shashidar Bellur, Santhosh Thomas
  • Publication number: 20120143825
    Abstract: Aspects of the subject matter described herein relate to backups and change journals. In aspects, a change journal is read to determine changes that have occurred to objects of a file system. From these changes a data structure is created to capture path information and collect changes for each object. Where the data structure is insufficient to identify a complete path, the live file system is consulted. After the data structure is complete, a data protection engine uses the data structure to update a catalog at least to provide the capability to view the namespace of the protected objects at one or more times covered by the catalog.
    Type: Application
    Filed: December 3, 2010
    Publication date: June 7, 2012
    Applicant: Microsoft Corporation
    Inventors: Branton Nicolas Boehm, Apurva Ashwin Doshi, Juan-Lee Pang, Grigory Borisovich Lyakhovitskiy, Sarosh Cyrus Havewala
  • Patent number: 8195613
    Abstract: Various methods and apparatus are described for archiving of an electronic document between multiple interconnected archive units of a distributed server network in geographically-dispersed locations in order to store identical copies of the electronic document at the same time. An archival portal server in the distributed server network sends a five-step, two-phase commit protocol to a selected set of two or more transaction manager instances resident on remote archive units. The archival system reconciles if an error occurs between a start of a transmission of the electronic document and a permanent archiving of that electronic document, or the electronic document is stored in a permanent data storage location within each of the archive units at an end of the two-phase commit protocol making archiving of an electronic document to multiple locations an atomic operation.
    Type: Grant
    Filed: August 6, 2009
    Date of Patent: June 5, 2012
    Assignee: Autonomy Corporation Ltd.
    Inventor: Bojan Vukojevic
  • Patent number: 8176418
    Abstract: A system for generating a summary of a plurality of documents and presenting the summary information to a user is provided which includes a computer readable document collection containing a plurality of related documents stored in electronic form. Documents can be pre-processed to group documents into document clusters. The document clusters can also be assigned to predetermined document categories for presentation to a user. A number of multiple document summarization engines are provided which generate summaries for specific classes of multiple documents clusters. A summarizer router is employed to determining a relationship of the documents in a cluster and select one of the document summarization engines for use in generating a summary of the cluster. A single event engine is provided to generate summaries of documents which are closely related temporally and to a specific event.
    Type: Grant
    Filed: March 4, 2005
    Date of Patent: May 8, 2012
    Assignee: The Trustees of Columbia University in the City of New York
    Inventors: Kathleen R. McKeown, Regina Barzilay, Dave Evans, Vasileios Hatzivassiloglou, Judith Klavans, Ani Nenkova, Barry Schiffman
  • Publication number: 20120109895
    Abstract: The subject disclosure relates to a database recovery technique that implements various aspects of transaction logging to optimize database recovery performance. Transactions are logged logically with no reference to physical location, which enables logging to be performed via multiple independent log streams in parallel. A set of log streams can further be adjusted to conform to a local configuration of a mirror or secondary node in order to increase mirroring flexibility. Additionally, individual transactions or groups of transactions are recorded using a single log record, which contains timestamp information to enable database recovery without reference to physical checkpoint files. Further, techniques are provided herein for processing transactions without Write Ahead Logging or hardening of undo information.
    Type: Application
    Filed: October 28, 2010
    Publication date: May 3, 2012
    Applicant: MICROSOFT CORPORATION
    Inventors: Mike Zwilling, Per-Ake Larson, Cristian Diaconu
  • Patent number: 8165995
    Abstract: An image forming apparatus capable of preventing the degradation of performance when the log data is outputted to an external device. An output unit outputs an operation condition about image forming as log data to an external device. A changing unit changes a detailed degree of the log data outputted by the output unit according to a log level that classifies the detailed degrees of the log data into some levels. A setting unit sets up a limit value corresponding to volume of the log data outputted by the output unit. A control unit controls the log level based on the limit value set up by the setting unit.
    Type: Grant
    Filed: May 8, 2009
    Date of Patent: April 24, 2012
    Assignee: Canon Kabushiki Kaisha
    Inventor: Ryotaro Imine
  • Patent number: 8165994
    Abstract: A server auditing process that stores only a single up-to-date data record along with the differences relative to previous changes in the record that allow the user to move “backward in time” to recreate previous values. The auditing feature introduces a baseline database table and a difference database table for each existing database table. The baseline table stores the most recent auditing data and the differences table complements the baseline table by storing pairs in the form of attribute name and previous value. By applying difference rows to baseline data, the user is able to recreate the data as it existed at any given timestamp and at a minimal storage cost. The architecture minimizes the impact of auditing on system performance by employing an asynchronous priority queue so that task processing is deferred until the system has adequate resources and other work is not affected.
    Type: Grant
    Filed: December 19, 2007
    Date of Patent: April 24, 2012
    Assignee: Microsoft Corporation
    Inventors: Jesse G Carnathan, Raymond David Ducolon
  • Publication number: 20120095966
    Abstract: The invention provides a method of managing data updates in DOS-based data storage device having an OTP memory die that includes a code region having a first memory capacity and a code region access resolution and a data region having a second memory capacity and a data region access resolution. The second memory capacity is larger than the first memory capacity and the code region access resolution is finer than the data region access resolution. The method includes chronologically writing a log entry in the code region indicating the change in FAT and root directory for each change in user data written in the data region.
    Type: Application
    Filed: December 22, 2011
    Publication date: April 19, 2012
    Inventors: Yoav Yogev, Eli Lusky
  • Patent number: 8161007
    Abstract: A system and method for improving the efficiency of the transmission of updated blocks generated by logging all the block allocations and deletes as well as CPs and PCPI creation and deletion in a persistent log. The log is scanned during each update cycle (in which changes are transmitted to a destination mirror) by the storage operating system, and only changed blocks that are referenced by the file system as it existed at the end of the update cycle or referenced by PCPIs that existed at the end of the update cycle are actually sent in the transmission. This reduces the number of changes being transmitted.
    Type: Grant
    Filed: January 27, 2010
    Date of Patent: April 17, 2012
    Assignee: NetApp, Inc.
    Inventor: Raymond C. Chen
  • Patent number: 8161005
    Abstract: A method, article of manufacture, and apparatus for tracking a plurality of objects being stored are disclosed. In an embodiment, this comprises computing the hash value of the name of each object being stored, setting the corresponding bits in a bitmap, and storing the bitmap as a hint in an index. The size of the bitmap is determined by the space available for storing the hint, and the range of hash values is determined by the size of the bitmap. The range may be determined by choosing a prime number smaller than the space available for storing the bitmap. Either the hint or the longest pathname containing the objects can be stored, and this may be selected based on the application.
    Type: Grant
    Filed: June 30, 2005
    Date of Patent: April 17, 2012
    Assignee: EMC Corporation
    Inventors: Yasemin Ugur Ozekinci, Thomas Papadakis
  • Patent number: 8156079
    Abstract: A method, article of manufacture, and apparatus for tracking a plurality of objects being stored are disclosed. In an embodiment, this comprises concatenating at least a portion of the name of each object being stored into a hint; and storing the hint in an index. The portion of the name is the entire name, the first n characters, the last n characters, or every nth character, and this may be selected based on the application associated with the objects. Either the hint or the longest pathname containing the objects can be stored, and this may be selected based on the application.
    Type: Grant
    Filed: June 30, 2005
    Date of Patent: April 10, 2012
    Assignee: EMC Corporation
    Inventors: Yasemin Ugur Ozekinci, Thomas Papadakis
  • Publication number: 20120084260
    Abstract: Methods, systems and program products for log-shipping data replication from a primary system to a communicatively-coupled standby system. Embodiments of the invention may receive transactional log data at a standby system, from the primary system, and before the transactional log data is written to storage on the primary system. Embodiments may then receive a notification from the primary system indicating that the corresponding log data was written to storage on the primary system, and responsive to receiving the notification, may process the received transactional log data.
    Type: Application
    Filed: September 30, 2010
    Publication date: April 5, 2012
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Kevin J. Cherkauer, Steven R. Pearson, Xun Xue, Roger L. Q. Zheng
  • Patent number: 8145604
    Abstract: Relocating a file system journal within a partitioned memory space is described. In one embodiment, a method, which involves relocating an active file system journal, includes writing the changes for relocating the metadata structures into the new file system journal before the file system journal is activated so that journaling remains active during relocation and the corresponding file system remains consistent throughout the relocation.
    Type: Grant
    Filed: October 19, 2007
    Date of Patent: March 27, 2012
    Assignee: Apple Inc.
    Inventor: Mark S. Day
  • Patent number: 8145603
    Abstract: A storage system maintains a journal and a snapshot of one or more data volumes. Two journal entry types are maintained, an AFTER journal entry and a BEFORE journal entry. Two modes of data recovery are provided: “fast” recovery and “undo-able” recovery. A combination of both recovery modes allows the user to quickly recover a targeted data state.
    Type: Grant
    Filed: February 28, 2006
    Date of Patent: March 27, 2012
    Assignee: Hitachi, Ltd.
    Inventor: Kenji Yamagami
  • Patent number: 8145598
    Abstract: Methods and systems are disclosed that relate to single instance storage of asset parts utilizing a back reference count associated with each asset part. Entries in a journal associated with the asset parts reflect the intention to increment or decrement an asset part's back reference count. The journal may be used to maintain an accurate and reliable reference count for asset parts replicated across multiple disk drives in a distributed storage system, where the replication is structured to reduce the risk of data loss in the event of a disk drive failure. The journal entries may comprise generation numbers used to maintain a back reference count associated with an asset part and to verify a back reference count associated with an asset part.
    Type: Grant
    Filed: February 23, 2009
    Date of Patent: March 27, 2012
    Assignee: Iron Mountain Incorporated
    Inventors: Peter D. Beaman, Tuyen M. Tran, Robert S. Newson
  • Publication number: 20120072395
    Abstract: A system for logging database transactions comprises a memory (comprising a direct access storage device) operable to store a database, a database log, and a plurality of log buffers associated with the database log. Each log buffer is operable to store at least one log record associated with a database transaction. The system further comprises a processor operable to log a first record of a first database transaction using the database log and write the database log to the storage device. The processor is further operable to log a second record of a second database transaction in a first of the plurality of log buffers substantially concurrently to the database log being written to the storage device.
    Type: Application
    Filed: November 30, 2011
    Publication date: March 22, 2012
    Applicant: Computer Associates Think, Inc.
    Inventor: Joseph B. LYNN
  • Patent number: 8140479
    Abstract: A method, apparatus and program product for classifying objects on a computer system. An audit journal of interactions with objects is evaluated to identify a plurality of logical groups of objects. A graphical construct, such as a hierarchical tree, is created from the plurality of logical groups. And, in response to user input directed to the graphical construct, at least one object is classified based upon a logical group within which the object is arranged.
    Type: Grant
    Filed: December 21, 2006
    Date of Patent: March 20, 2012
    Assignee: International Business Machines Corporation
    Inventors: Thomas Barlen, Daniel Paul Kolz
  • Patent number: 8140480
    Abstract: Various techniques for performing off-host cataloging of backup information are disclosed. One method involves initiating, subsequent to the closure of a backup window, generation of at least a portion of a catalog. The catalog identifies contents of a set of backup information received during the backup window. The generation of the portion of the catalog is performed by a backup computing device and does not involve the host computing device from which the backup information was received. Prior to completion of generation of the catalog, a request to access the catalog is received from a user. In response, information included in the catalog is dynamically displayed to the user.
    Type: Grant
    Filed: March 31, 2009
    Date of Patent: March 20, 2012
    Assignee: Symantec Corporation
    Inventor: Ynn-Pyng “Anker” Tsaur
  • Patent number: 8131674
    Abstract: Systems and methods for managing data, such as metadata or index databases. In one exemplary method, a notification that an existing file has been modified or that a new file has been created is received by an indexing software component, which then, in response to the notification performs an indexing operation, where the notification is either not based solely on time or user input or the notification includes an identifier that identifies the file. Other methods in data processing systems and machine readable media are also described.
    Type: Grant
    Filed: April 22, 2005
    Date of Patent: March 6, 2012
    Assignee: Apple Inc.
    Inventors: Yan Arrouye, Dominic Giampaolo, Andrew Carol, Steve Zellers
  • Patent number: 8131680
    Abstract: Systems and methods for managing electronic data are disclosed. Various data management operations can be performed based on a metabase formed from metadata. Such metadata can be identified from an index of data interactions generated by a journaling module, and obtained from their associated data objects stored in one or more storage devices. In various embodiments, such processing of the index and storing of the metadata can facilitate, for example, enhanced data management operations, enhanced data identification operations, enhanced storage operations, data classification for organizing and storing the metadata, cataloging of metadata for the stored metadata, and/or user interfaces for managing data. In various embodiments, the metabase can be configured in different ways. For example, the metabase can be stored separately from the data objects so as to allow obtaining of information about the data objects without accessing the data objects or a data structure used by a file system.
    Type: Grant
    Filed: November 2, 2009
    Date of Patent: March 6, 2012
    Assignee: CommVault Systems, Inc.
    Inventors: Anand Prahlad, Jeremy Alan Schwartz, David Ngo, Brian Brockway, Marcus S. Muller
  • Patent number: 8126848
    Abstract: A method and system for monitoring and maintaining the consistency of replicated databases in a shared-nothing database cluster architecture is presented. The method involves the continuous monitoring of the database transaction logs that are maintained by the autonomous database managers that manage the individual database replicas in the cluster. In the event that data discrepancies are detected via the comparison of the transaction logs of the individual database replicas, remedial action is carried out according to configured rules in the main cluster controller. These remedial actions may include, but are not limited to, making a database node inactive within the cluster, or automatically repairing any data discrepancies that are detected among the database replicas in the cluster.
    Type: Grant
    Filed: September 14, 2009
    Date of Patent: February 28, 2012
    Inventor: Robert Edward Wagner
  • Patent number: 8121980
    Abstract: Transactional record management methods and systems enabling multiple independent servers (such as database servers) using shared storage to initiate transactions in parallel without inter server communication and without locking the records used by the transaction. The in-flight transactions can be included in a shared transaction log without a final determination of whether the transaction committed. The log updates can be broadcast to each of the servers, which each parse the log, using the same rules of analysis, and therefore each compute server can independently and asynchronously come to the same conclusion as to which transactions aborted and which transactions committed.
    Type: Grant
    Filed: February 13, 2009
    Date of Patent: February 21, 2012
    Assignee: Microsoft Corporation
    Inventors: Colin Wilson Reid, Philip A. Bernstein
  • Publication number: 20120041926
    Abstract: Techniques for making light-weight checkpoints in logs of streams of transactions and for extending the logs from the checkpoints. The state saved in the light weight checkpoint need only include the state of all transactions that are active at a prior point in the log and are still active at the checkpoint. A log is extended from the checkpoint by processing new transactions in the transaction stream beginning at the prior point to produce the extending log. When the checkpoint is reached, the state saved at the checkpoint is used to continue to produce the extending log. Techniques are further disclosed for selecting points in the stream of transactions at which the checkpoints may be made and for determining the distance between checkpoints. As disclosed, the log in which the checkpoints are used is a logical log made from a physical log produced by a relational database system. The logical log may be used for replication and for data mining.
    Type: Application
    Filed: February 11, 2011
    Publication date: February 16, 2012
    Applicant: Oracle International Corporation
    Inventors: Joydip Kundu, Qinqin Wang, Goutam Kulkarni
  • Patent number: 8117411
    Abstract: Data written in the primary logical volume of the first storage device are transmitted to the third storage device via the second storage device, the data being written in the same location as the primary logical volume within the secondary logical volume in the third storage device; when transmission of the data stops among the first to the third storage devices, the respective second storage device and the third storage device manage locations in the secondary logical volume where the data held thereby are to be written; and, when transmission of the data resumes among the first to the third storage devices, the locations in the secondary logical volume managed by the respective second and the third storage devices are aggregated, the data to be written in the respective aggregated location in the secondary logical volume being transmitted from the first storage device to the third storage device via the second storage device.
    Type: Grant
    Filed: July 6, 2011
    Date of Patent: February 14, 2012
    Assignee: Hitachi, Ltd.
    Inventors: Shintaro Inoue, Katsuhiro Okumoto
  • Patent number: 8108350
    Abstract: Techniques for end-to-end tracing of database operations in source code for database applications are provided. Source code on the client side is instrumented to measure time spent on selected database operation statements (e.g., queries). The selected database operation statements can be uniquely tagged or identified. Tracing is enabled on the database application on the server side so that a log is produced, where the log includes performance (e.g., time spent) information on database operation statements that are executed. The performance information in the log is correlated to the selected database operation statements so that, among other things, the time spent on the client side and the time spent on the server side can be presented for analysis.
    Type: Grant
    Filed: October 21, 2004
    Date of Patent: January 31, 2012
    Assignee: Oracle International Corporation
    Inventors: Ekkehard Rohwedder, Quan Wang
  • Patent number: 8108429
    Abstract: A data management system or “DMS” provides a wide range of data services to data sources associated with a set of application host servers. The data management system typically comprises one or more regions, with each region having one or more clusters. A given cluster has one or more nodes that share storage. To facilitate the data service, a host driver embedded in an application server connects an application and its data to a cluster. The host driver provides a method and apparatus for capturing real-time data transactions in the form of an event journal that is provided to the data management system. The driver functions to translate traditional file/database/block I/O into a continuous, application-aware, output data stream. Using the streams generated in this manner, the DMS offers a wide range of data services that include, by way of example only: data protection (and recovery), disaster recovery (data distribution and data replication), data copy, and data query and access.
    Type: Grant
    Filed: May 6, 2005
    Date of Patent: January 31, 2012
    Assignee: Quest Software, Inc.
    Inventors: Siew Yong Sim-Tang, Daniel J. Fraisl
  • Patent number: 8090691
    Abstract: A system for logging database transactions comprises a memory (comprising a direct access storage device) operable to store a database, a database log, and a plurality of log buffers associated with the database log. Each log buffer is operable to store at least one log record associated with a database transaction. The system further comprises a processor operable to log a first record of a first database transaction using the database log and write the database log to the storage device. The processor is further operable to log a second record of a second database transaction in a first of the plurality of log buffers substantially concurrently to the database log being written to the storage device.
    Type: Grant
    Filed: July 7, 2005
    Date of Patent: January 3, 2012
    Assignee: Computer Associates Think, Inc.
    Inventor: Joseph B. Lynn
  • Patent number: 8090692
    Abstract: The invention provides a method of managing data updates in DOS-based data storage device having an OTP memory die that includes a code region having a first memory capacity and a code region access resolution and a data region having a second memory capacity and a data region access resolution. The second memory capacity is larger than the first memory capacity and the code region access resolution is finer than the data region access resolution. The method includes chronologically writing a log entry in the code region indicating the change in FAT and root directory for each change in user data written in the data region.
    Type: Grant
    Filed: September 10, 2008
    Date of Patent: January 3, 2012
    Assignee: Infinite Memory Ltd
    Inventors: Yoav Yogev, Eli Lusky
  • Publication number: 20110307449
    Abstract: Aspects of the subject matter described herein relate to checkpoints for a file system. In aspects, updates to the file system are organized into checkpoint buckets. When a checkpoint is desired, subsequent updates are directed to another checkpoint bucket. After global tables have been updated for updates in the current checkpoint bucket, a logical copy of the global tables is created. This logical copy is stored as part of the checkpoint data. To assist in recovery, a checkpoint manager may wait until all updates of the current checkpoint bucket have been written to storage before writing final checkpoint data to storage. This final checkpoint data may refer to the logical copy of the global tables and include a validation code to verify that the checkpoint data is correct.
    Type: Application
    Filed: June 15, 2010
    Publication date: December 15, 2011
    Applicant: Microsoft Corporation
    Inventors: Jonathan M. Cargille, Thomas J. Miller, William R. Tipton
  • Patent number: 8078582
    Abstract: Aspects of the subject matter described herein relate to data change ordering in multi-log based replication. In aspects, local seeds are maintained for subtransactions involved in a transaction, where each subtransaction may occur on a different node that hosts one or more database fragments involved in the transaction. When a subtransaction communicates with another subtransaction in a transaction, the subtransaction sends its local seed to the other subtransaction. The receiving subtransaction compares its local seed with the received seed and updates its local seed if the received seed is logically after its local seed. A subtransaction uses a local seed to generate sequence identifiers for changes made by the subtransaction. These identifiers allow data changes of a transaction that are made on multiple nodes to be partially ordered relative to other changes made during the transaction.
    Type: Grant
    Filed: April 6, 2009
    Date of Patent: December 13, 2011
    Assignee: Microsoft Corporation
    Inventors: Rui Wang, Peter Byrne, Leigh M. Stewart, Robin D. Dhamankar, Qun Guo, Michael E. Habben, Xiaowei Jiang
  • Patent number: 8078581
    Abstract: A plurality of second groups respectively including one or more second volumes are configured in correspondence with each of the first groups of a remote copy source in a remote copy destination, journals are acquired from the first storage apparatus periodically and in the order the journals were created for each of the configured second groups, and the acquired journals are reflected in the corresponding second volume in the corresponding second group. In addition, the latest time stamp of each of the second groups containing the journals retained in the second volume in an unreflected state is compared, the time difference of the latest and oldest time stamps is detected, and prescribed control processing is executed for acquiring the journals regarding the second group with the oldest time stamp in preference to the journals regarding other second groups when the time difference exceeds a preset threshold value.
    Type: Grant
    Filed: February 11, 2008
    Date of Patent: December 13, 2011
    Assignee: Hitachi, Ltd
    Inventors: Kensuke Amaki, Kenichi Oyamada, Takeyuki Imazu, Yoshinori Matsui
  • Publication number: 20110302140
    Abstract: In certain embodiments, a tiered storage system is disclosed that provides for failover protection during data backup operations. The system can provide for an index, or catalog, for identifying and enabling restoration of backup data located on a storage device. The system further maintains a set of transaction logs generated by media agent modules that identify metadata with respect to individual data chunks of a backup file on the storage device. A copy of the catalog and transaction logs can be stored at a location accessible by each of the media agent modules. In this manner, in case of a failure of one media agent module during backup, the transaction logs and existing catalog can be used by a second media agent module to resume the backup operation without requiring a restart of the backup process.
    Type: Application
    Filed: December 30, 2010
    Publication date: December 8, 2011
    Applicant: COMMVAULT SYSTEMS, INC.
    Inventors: Parag Gokhale, Prakash Varadharajan, Pavlo Mazur
  • Patent number: 8069141
    Abstract: Architecture for replicating a database through log shipping. A replication service replicates data using one or more new internal application program interfaces (APIs), a replay configuration API which abstracts configuration information for each destination (or target) instance. APIs for log file management as part of the replication process are provided for opening communications for log shipping, tracking success of log shipping and closing out log shipping communications. Log shipping APIs are also provided for log truncation control. A ship control object is provided as a base class which includes an API for other components of the replication service to operate on log files when the log files are placed into a log directory. The ship control API is utilized by the replication service and for interaction with storage system log files.
    Type: Grant
    Filed: March 12, 2007
    Date of Patent: November 29, 2011
    Assignee: Microsoft Corporation
    Inventors: Alexander R. Wetmore, Laurion Burchall
  • Patent number: 8069148
    Abstract: Various technologies and techniques are disclosed for improving configuration of database audits. Multiple audits can be created for a database. Any one of the audits can be turned off without impacting an operation of any remaining audits. Database audits can be ported from one database server instance to another. Database audit metadata is stored in a database separately from a database server instance to which the database is attached. The database can be detached from the database server instance and attached to a second database server instance, with the database audit metadata moving along with the database automatically. Any audits associated with the database audit metadata are automatically activated for the second database server instance. Database audits can be configured using a hierarchical model.
    Type: Grant
    Filed: May 7, 2008
    Date of Patent: November 29, 2011
    Assignee: Microsoft Corporation
    Inventors: Jack S. Richins, Robert E. Walters, Sung Soo Kang, Ruslan P. Ovechkin, Sameer A. Tejani, Craig Gick, Raul Garcia, Liying Jiang
  • Patent number: 8065274
    Abstract: A minimized journaling mechanism stores minimized journal data in a format that allows for display and outputting the journal data in human-readable form. When a change to a record occurs, instead of writing only the changed bytes, all of the bytes in each field that changed are written to the journal, along with all of the bytes in each field selected to be always journaled. A default object is created with default data in all of the fields. When the journal entry needs to be output in human-readable form, the default object is read, and the minimized journal entry is then overlaid on the default object. The result is an object that contains default data in all non-selected fields that were not changed, with the journal data in all fields and that did change and in all fields that were selected to always be journaled.
    Type: Grant
    Filed: April 24, 2008
    Date of Patent: November 22, 2011
    Assignee: International Business Machines Corporation
    Inventors: Adam Thomas Stallman, Larry William Youngren
  • Patent number: 8065442
    Abstract: Technologies are described herein for high-performance and space efficient journaling mechanisms. A journal queue can buffer incoming I/O operations. The queue can be read by a journal write module. The journal write module can form metadata headers to store into the journal along with each I/O operation. Compound metadata headers may be formed for multiple I/O operations and the combination of multiple I/O operations may be efficiently stored to the journal as one journal write. Multiple journal entries may be written into the journal in parallel while maintaining the sequential ordering of the journal. A queue depth threshold can be established for determining if journal entries should be combined into compound entries or not. Multiple concurrent readers can support continuous data protection, and various data replication features. Each reader can be represented as a reader pointer and a journal writer can invalidate reader pointers when related data is overwritten.
    Type: Grant
    Filed: November 19, 2008
    Date of Patent: November 22, 2011
    Assignee: American Megatrends, Inc.
    Inventors: Paresh Chatterjee, Srikumar Subramanian, Jomy Maliakal, Suresh Grandhi
  • Patent number: 8060470
    Abstract: An administration server in a database management system retrieves log files in a plurality of formats from a plurality of clients through helper programs running on the clients. The plurality of clients can include Web servers, application servers, and database servers. The log files can be generated by software modules on the clients. An administration engine converts log entries in the log files into a unified format for display. The converted log entries can be stored in a log database. Upon a user request, the administration server presents the log entries to the user in a log viewer. The log viewer can display log entries originated from heterogeneous software modules in a unified view.
    Type: Grant
    Filed: December 23, 2008
    Date of Patent: November 15, 2011
    Assignee: Apple Inc.
    Inventors: Mark Davidson, Erwin Hom, Robert Parks
  • Patent number: 8056076
    Abstract: A method and system for acquiring a quiesceing set of information associated with a virtual machine. A virtual machine is cloned. The cloned virtual machine has an associated persistent storage device. The state of the persistent storage device is transformed into a quiesced state of the cloned virtual machine by utilizing a shut-down process. The shut-down process is executed on the cloned virtual machine to quiesce the cloned virtual machine and the quiesceing set of information of the cloned virtual machine is automatically reduced to information stored on the persistent storage device.
    Type: Grant
    Filed: June 29, 2006
    Date of Patent: November 8, 2011
    Assignee: VMware, Inc.
    Inventors: Greg Hutchins, Christian Czezatke, Satyam B. Vaghani, Mallik Mahalingam, Shaw Chuang, Bich Le
  • Patent number: 8055943
    Abstract: A method, system, and computer program product for providing continuous data protection for write data supplied from a host incorporating a processor device to data storage in accordance with write input/output (I/O) of an owning application is provided. The write data is identified as one of a synchronous candidate and an asynchronous candidate. The write data identified as the one of the synchronous candidate and the asynchronous candidate is transferred to at least one sidefile. The write data transferred to the at least one sidefile is secured in a nonvolatile storage journal. The nonvolatile storage journal is preset with a timeout limit applicable to write data identified as the synchronous candidate. If the timeout limit is exceeded, a loss mitigation operation to safeguard the write data identified as the synchronous candidate is performed.
    Type: Grant
    Filed: April 24, 2009
    Date of Patent: November 8, 2011
    Assignee: International Business Machines Corporation
    Inventors: Stephen F. Edel, David M. Shackelford
  • Patent number: 8055613
    Abstract: A method and apparatus for efficiently logging changes to a file system are disclosed. A file system filter driver intercepts I/O requests directed to a file system, and analyzes the I/O requests to determine whether the requests are write or modify requests directed to a file included in a list of files to be monitored for changes. If the I/O request is directed to such a file, the file system filter driver logs the I/O request to a b-tree structured change log file. Furthermore, in one embodiment, the file system filter driver is configured to log file system changes to multiple log files to coincide with snapshot operations, such that the file system changes to be included in each snapshot are included in separate log files.
    Type: Grant
    Filed: April 29, 2008
    Date of Patent: November 8, 2011
    Assignee: Netapp, Inc.
    Inventors: Paul Yuedong Mu, Sajeev Aravindan, Chandrasekar Srinivasan
  • Patent number: 8051044
    Abstract: Continuous data protection is performed as two parallel processes: copying a data block from the storage device into the backup storage device (creating initial backup) and copying the data block to be written to the data storage into the incremental backup. When a write command is directed to a data storage block, it's intercepted and redirected to the backup storage, and data, which is to be written in accord to the write request, is written to the incremental backup on the backup storage. If write command is also directed to a data storage block identified for backup that has not yet been backed up, the identified data storage block is copied from the storage device to the intermediate storage device, the write command is executed on the identified data storage block from the storage device, and the data storage block is copied from the intermediate storage device to the backup storage device. In case of an error accessing a block on the storage device, the block is marked as invalid.
    Type: Grant
    Filed: April 1, 2008
    Date of Patent: November 1, 2011
    Assignee: Acronis, Inc.
    Inventors: Dennis S. Dyatlov, Juri V. Tsibrovskyy, Maxim V. Lyadvinsky, Serguei M. Beloussov
  • Patent number: 8046332
    Abstract: A method and system for generating and restoring a backup image are disclosed. A server receives a request, which includes a backup path, to generate a backup image. The server generates a backup image offset map that indicates a relative location where a file is stored in the backup image before file data has been written to the backup image. The server stores the backup image offset map in a portion of the backup image on a storage device. The backup image offset map comprises an array having a number of elements equal to a number of inodes on a file system that hosts a backup path, an element of the array representing an inode on the file system, and indicates the relative location where a file that is associated with a number of the inode is stored in the backup image.
    Type: Grant
    Filed: May 3, 2010
    Date of Patent: October 25, 2011
    Assignee: Network Appliance, Inc.
    Inventors: Arvind Pruthi, Kiyoshi Komatsu
  • Patent number: 8046336
    Abstract: Disclosed herein are systems and methods for managing the distribution and synchronization of data across multiple locations. The invention uses a static, rule-based mechanism that results in fast, successful data updates in a consistent and controlled manner and without the requirement for manual reconciliation. In one embodiment the data relates to financial transactions.
    Type: Grant
    Filed: November 18, 2005
    Date of Patent: October 25, 2011
    Assignee: Credit Suisse Securities (USA) LLC
    Inventors: Nathan Zhang, Sreekanth Brahmamdam
  • Patent number: 8046334
    Abstract: Various embodiments include one or more of systems, methods, software, and data structures that allow dual access to concurrent data in a database management system including uncommitted updated data. Some embodiments include a dual snapshot of data in a multi-version concurrency control style database, but the embodiments described herein are equally applicable to virtually any other type of database and database management system.
    Type: Grant
    Filed: March 11, 2011
    Date of Patent: October 25, 2011
    Assignee: SAP AG
    Inventors: Sang Yong Hwang, Ki Hong Kim, Sung Heun Wi, Sang Kyun Cha
  • Patent number: 8041907
    Abstract: A method and system for efficient space management for single-instance-storage volumes is provided. A backup module storing data within a collection of containers according to access locality and retention time of the data, wherein the retention time defines an amount of time the data is stored within the collection of containers before deletion of the data, and the access locality comprises an order in which the data is to be accessed is further provided. A compaction module compacting the stored data by selecting at least two containers among the collection of containers, wherein the selection is performed using a predetermined criteria that includes access locality and retention time of the data is also provided. The compaction module distributes the data among the at least two containers. The compaction criteria creates an imbalance among the containers to create more empty, full, or nearly full containers.
    Type: Grant
    Filed: June 30, 2008
    Date of Patent: October 18, 2011
    Assignee: Symantec Operating Corporation
    Inventors: Weibao Wu, Xianbo Zhang
  • Patent number: 8041681
    Abstract: One aspect of the invention is a method for backing up data. An example of the method includes querying a backup infrastructure to ascertain backup capabilities of the backup infrastructure. This example also may include broadcasting the capabilities of the backup infrastructure, wherein the capabilities are broadcasted by the backup infrastructure. This example also includes determining if the backup infrastructure supports a desired backup type. If the backup infrastructure supports a desired backup type, this example may also include performing a backup of data using the desired backup type.
    Type: Grant
    Filed: January 8, 2009
    Date of Patent: October 18, 2011
    Assignee: International Business Machines Corporation
    Inventors: Lu Nguyen, John R. Paveza