Patents Assigned to Veritas Operating Corporation
  • Patent number: 7725438
    Abstract: A method and apparatus for creating backup files by creating an overhead segment for each file that is to be backed up and creating a data segment containing the data that is to be backed up for each file. After creating overhead segment and the data segment, the overhead segment is placed into an overhead stream and the data segment is stored in a memory. The overhead segment is also positioned in the overhead stream with a pointer that identifies the location of the data within the memory. As such, the backup file comprises a data segment and an overhead stream.
    Type: Grant
    Filed: January 31, 2005
    Date of Patent: May 25, 2010
    Assignee: Veritas Operating Corporation
    Inventors: Sunil Shah, Kirk L. Searls
  • Patent number: 7596611
    Abstract: A method and apparatus for storing and maintaining information for the operation of a client, locally to the client. This information is updated (or, initially, retrieved) as necessary and appropriate, by accessing corresponding information stored locally to a server.
    Type: Grant
    Filed: April 1, 2002
    Date of Patent: September 29, 2009
    Assignee: Veritas Operating Corporation
    Inventors: Vekeepuram R. Satish, Chio Fai Aglaia Kong, Manish Manhar Parekh, Adhir Prabhakar Potdar, Chirag Deepak Dalal, Vaijayanti Rakshit Bharadwaj
  • Patent number: 7571290
    Abstract: A method, system, and computer program product are provided to synchronize data maintained in separate storage areas using a copy-on-read technique. The separate storage areas may be distributed across a network, and the replicas of the data may be used for backup and/or disaster recovery purposes. Storage objects containing data and information relevant to managing the data by a particular application are identified, and only those storage objects are read. Data contained in the storage objects read are then copied to the replica storage area. This process avoids reading non-useful data, making the synchronization more efficient and conserving bandwidth of connections over which the data are sent.
    Type: Grant
    Filed: April 18, 2006
    Date of Patent: August 4, 2009
    Assignee: Veritas Operating Corporation
    Inventors: Dilip M. Ranade, Radha Shelat
  • Patent number: 7565568
    Abstract: A method and system for virtualization switch failover is disclosed. According one embodiment of the present invention, a failure of a first virtualization device within storage a area network interconnect and associated with a unique interconnect device identifier is detected and the unique interconnect device identifier is responsively associated with a second virtualization device of the storage area network interconnect.
    Type: Grant
    Filed: February 27, 2004
    Date of Patent: July 21, 2009
    Assignee: Veritas Operating Corporation
    Inventors: Mukul Kumar, Amitava Guha, Subhojit Roy, John J. Glen
  • Patent number: 7320088
    Abstract: Replication of application files in a clustered environment may be automated based on the state and/or configuration of the application in the cluster. A clustering engine executing on one or more clustered computing nodes may notify one or more replication agents regarding changes in a clustered application's state and/or configuration. An application's status may include information indicating one or more cluster nodes on which the application is currently executing and also may include information indicating one or more cluster nodes on which the application is configured to execute. Replication agents executing on cluster nodes may, either individually or through collective coordination, modify a replication policy for replicating one or more application files based on the received status information. Subsequently, the replication agents may replicate the application files from one of the clustered computing nodes to one or more other nodes, according to the modified replication policy.
    Type: Grant
    Filed: December 28, 2004
    Date of Patent: January 15, 2008
    Assignee: VERITAS Operating Corporation
    Inventor: Ashish L. Gawali
  • Patent number: 7320008
    Abstract: System and method for protecting data systems such as file systems, volume managers, databases, and backup systems. In embodiments, rather than encrypting the data of a data system, one or more elements or levels of metadata may be encrypted. Some embodiments may encrypt metadata that is not accessed frequently to minimize the cost of encryption and decryption. Alternatively, instead of encrypting an entire metadata, only a portion, such as a header block, of the metadata may be encrypted. The encrypted metadata may be stored in the data system. At startup of the data system, the encrypted metadata may be decrypted and an unencrypted copy of the metadata may be cached in memory for use by the data system software. If the decrypted metadata is modified, then the encrypted metadata may be replaced with an encrypted version of the modified metadata. Format(s) of the metadata that is encrypted may be copyrighted.
    Type: Grant
    Filed: December 20, 2004
    Date of Patent: January 15, 2008
    Assignee: VERITAS Operating Corporation
    Inventor: John A. Colgrove
  • Patent number: 7310714
    Abstract: A virtual copy of data stored in a first memory is created in a second memory. Creating the virtual copy includes, in one embodiment, creating first and second tables in memory each one of which comprises a plurality of multibit entries. Each entry of the first table corresponds to a respective memory region of the first memory. Each entry of the second table corresponds to a respective memory region of the second memory. The first bit of the first and second tables indicates whether the corresponding memory region of the first and second memories, respectively, contains valid data. The second bit of the first and second tables indicates whether data in the corresponding memory region of the first and second memories, respectively, has been modified since the creation of the first and second tables, respectively.
    Type: Grant
    Filed: January 30, 2004
    Date of Patent: December 18, 2007
    Assignee: VERITAS Operating Corporation
    Inventors: Anand A. Kekre, John A. Colgrove, Oleg Kiselev, Ronald S. Karr, Niranjan S. Pendharkar
  • Patent number: 7296261
    Abstract: A method for determining changed code in a second program binary relative to a first or baseline program binary, where the second program is a different version of the first program, includes translating, responsive to symbol tables and/or control flow representations, machine addresses of both program binaries to symbols. The first and second program binaries are disassembled using the translated symbols. Differences between the two resulting disassemblies are determined, and a list of the differences is created. Differences between the program binaries can be determined by textually comparing the disassemblies, or alternatively, by determining the differences between the control flow representations of the programs. The list of differences can be presented to a user, or alternatively, can be passed to another process for further processing, such as test coverage analysis, code change analysis, or failure analysis, among other analyses.
    Type: Grant
    Filed: June 4, 2004
    Date of Patent: November 13, 2007
    Assignee: VERITAS Operating Corporation
    Inventors: Emmett Witchel, Christopher D. Metcalf, Andrew E. Ayers
  • Patent number: 7293272
    Abstract: In one embodiment, a computer accessible medium comprises a plurality of instructions which, when executed, parse at least a section of an input file to identify: (i) one or more driver information files, if at least one driver information file is listed in the section, and (ii) one or more first device drivers, if at least one device driver is listed in the section. If at least one driver information file is listed in the section, the plurality of instructions parse each of the one or more driver information files to identify: (i) one or more second device drivers, if at least one device driver is included in the driver information file, and (ii) one or more miniport drivers, if at least one miniport driver is included in the driver information file. The plurality of instructions select a selected device driver from the first device drivers, the second device drivers, and the miniport drivers.
    Type: Grant
    Filed: February 26, 2004
    Date of Patent: November 6, 2007
    Assignee: Veritas Operating Corporation
    Inventors: Okan Okcu, Nicholas R. Graf
  • Patent number: 7293133
    Abstract: System and method for performing operations in a multi-class file system without requiring split mirrors. For one or more storage classes in the multi-class file system, operations that require stable copies of the storage classes may be performed without using split mirrors. In one embodiment, read-only data may be assigned and/or migrated to lower storage classes, and operations may be performed on the read-only storage classes without using split mirrors. In one embodiment, to perform an operation without using a split mirror, a write lock of a storage class may be examined to determine if the write-locked storage class has been written to during the operation on the storage class and, if so, the operation may be retried for the storage class. In one embodiment, the file system software may be blocked from enabling a storage class for writing for the duration of the operation on the storage class.
    Type: Grant
    Filed: December 31, 2003
    Date of Patent: November 6, 2007
    Assignee: Veritas Operating Corporation
    Inventors: John Colgrove, Par Botes, Michael Timpanaro, Charles H. Silvers, Peter Vajgel
  • Patent number: 7284104
    Abstract: Various embodiments of systems and methods for performing volume-based incremental backups are disclosed. A method may involve generating a snappoint of a volume. The snappoint indicates which portions (e.g., blocks or extents) of the volume have been modified between a time at which the snappoint was generated and a time at which a subsequent snappoint was generated. The method may also involve accessing information mapping the file to the volume and, if the snappoint identifies as having been modified any blocks of the volume to which the file maps, copying those blocks from the subsequent snappoint to the backup device. Portions not identified as having been modified by the snappoint are not copied. Program instructions implementing such a method may be stored on a computer accessible medium.
    Type: Grant
    Filed: June 30, 2003
    Date of Patent: October 16, 2007
    Assignee: VERITAS Operating Corporation
    Inventors: Weibao Wu, Anand A. Kekre, Gang Lin
  • Patent number: 7278142
    Abstract: A system and a method of providing a dynamic computing environment to a user, in which the dynamic computing environment is configured to communicate and to operate under the control of the user. The dynamic computing environment has one or more virtual resources including at least one virtual computing device and one or more computer programs associated with the at least one virtual computing device. According to the present invention, the user has access, for example, to interact with, to modify, and to use the dynamic computing environment including the at least one virtual resource and the at least one physical resource.
    Type: Grant
    Filed: May 17, 2001
    Date of Patent: October 2, 2007
    Assignee: Veritas Operating Corporation
    Inventors: Jagadish Bandhole, Sekaran Nanja, William Blume, Carleton Miyamoto
  • Patent number: 7275103
    Abstract: Embodiments of a system and method for rule-based proactive storage path optimization for SANs. Embodiments may evaluate paths between an application and its storage on a SAN based on current and/or historical path quality of service. Performance of alternative paths may be monitored to determine if a better path than a path currently in use is available. If a better path is determined, then the path may be switched to the better path. In one embodiment, one or more zones may be reconfigured to migrate to a different path. Path migration may be performed automatically without user intervention. Alternatively, a user may be given the option to manually migrate to a new path. Embodiments may proactively change paths between an application and its storage before path performance becomes a problem. Embodiments may be integrated with a SAN management system or, alternatively, may be standalone mechanisms.
    Type: Grant
    Filed: December 18, 2002
    Date of Patent: September 25, 2007
    Assignee: VERITAS Operating Corporation
    Inventors: Russell Thrasher, Terence W. Noonan
  • Patent number: 7275142
    Abstract: Various embodiments of volume replication are disclosed. A request may be received to replicate a storage layout of a first storage system to a second storage system. A storage layout (e.g., configuration) of the first storage system may be determined, and one or more storage options of the second storage system may be determined. The storage options of the second storage system may include one or more storage devices available to the second storage system. A storage layout for the second storage system may be determined based on the storage options of the second storage system and the storage layout of the first storage system. Determining the storage layout of the second storage system may be based on the user input. The determined storage layout for the second storage system may be implemented, and data from the first storage system may be replicated onto the second storage system.
    Type: Grant
    Filed: July 26, 2004
    Date of Patent: September 25, 2007
    Assignee: VERITAS Operating Corporation
    Inventors: Margaret E. Schultz, Debra H. Graham
  • Patent number: 7275106
    Abstract: A method is provided for maintaining a connection between a local application and a remote application while the local application is unavailable or inactive. The method includes pausing the local application and sending data over the connection to maintain the connection. A connection filter on the same computing node as the local application sends data to maintain the connection by responding to acknowledgements and heartbeats from the remote application. The connection filter is configured to initiate the restoration of the local application in response to data that it is not configured to handle.
    Type: Grant
    Filed: June 10, 2003
    Date of Patent: September 25, 2007
    Assignee: VERITAS Operating Corporation
    Inventors: Thomas Alan Bean, Emily Hipp
  • Patent number: 7272619
    Abstract: Methods and systems to backup data are provided. A first computing device identifies data to backup and stabilizes a frozen image of that data. Next, the frozen image is decomposed into physical storage addresses housing the data. The decomposed storage addresses are sent to a second computing device. The second computing device uses the storage addresses along with existing operating system I/O operations to backup the data to computer readable media.
    Type: Grant
    Filed: October 21, 2004
    Date of Patent: September 18, 2007
    Assignee: VERITAS Operating Corporation
    Inventors: Thomas W. Lanzatella, Graham Bromley, Weibao Wu
  • Patent number: 7272674
    Abstract: Systems, methods, apparatus and software can make use of persistent reservation commands to establish the port of a shared device that is to be used as an active port by one or more host computer systems coupled to the shared device. Information about one or more paths used to transmit data between a host computer system and the shared device can be used by other host computer systems.
    Type: Grant
    Filed: June 30, 2003
    Date of Patent: September 18, 2007
    Assignee: VERITAS Operating Corporation
    Inventors: Siddhartha Nandi, Abhay K. Singh, Oleg Kiselev
  • Patent number: 7272606
    Abstract: In one embodiment, a system may include a storage device configured to provide a storage space for data storage and a file system configured to map files to the storage space for storage and to manage application accesses to the storage device. The file system may be configured to determine a signature of a first file stored on the storage device dependent upon at least a portion of the first file, detect an operation to access content of the first file, where the operation is generated by an application distinct from the file system, and, subsequent to detecting the operation, store a record of the operation associated with the first file, where the record includes a signature corresponding to the first file, information indicating the operation type and information identifying the application.
    Type: Grant
    Filed: November 26, 2003
    Date of Patent: September 18, 2007
    Assignee: Veritas Operating Corporation
    Inventors: Dhrubajyoti Borthakur, Nur Premo, Joseph Pasqua
  • Patent number: 7272708
    Abstract: The present invention discloses a user interface for creating a dynamic computing environment using allocateable resources. The interface enables the fast, efficient selection and configuration of resources for the computing environment. The resources are fully selectable and allocable by a system architect. In a first embodiment, the ability is provided that allows a customer or system architect to design a system by allocating resources and specifying how the resources are to be used. The system architect may create a computing environment from a remotely accessible user interface such as a web page on the Internet. Thus, the system architect can create, modify and operate the environment from anywhere in the world.
    Type: Grant
    Filed: June 20, 2006
    Date of Patent: September 18, 2007
    Assignee: VERITAS Operating Corporation
    Inventor: Sekaran Nanja
  • Patent number: 7266655
    Abstract: Synthesized backup set catalogs are created to more efficiently create synthetic full backups of a data volume or to more efficiently restore a data object of the data volume. In one embodiment, the synthesized backup set catalog comprises n entries corresponding to n data objects, respectively, of a data volume being backed up. The synthesized backup set catalog can be created with the creation of an incremental backup of the data volume. Each entry of the synthesized backup set catalog may contain a backup identification (ID), wherein each backup ID identifies at least one of two backup sets of the data volume.
    Type: Grant
    Filed: April 29, 2004
    Date of Patent: September 4, 2007
    Assignee: Veritas Operating Corporation
    Inventors: Zeir R. Escabi, II, Ynn-Pyng A. Tsaur