Symantec Operating Corporation

Panta Systems, Inc.

Veritas Operating Corporation

Symantec Operation Corporation

Symantec Operations Corporation

Emendable Assets Limited Liability Company

Mukul Kumar

Subhojit Roy

Pradip Kulkarni

Tung M Nguyen

Prasad Limaye

Richard Au

Anand Gopinath Das

Adhir Potdar

Ajit Vishnu Dhumale

Atul Avinash Nene

Ronald S Karr

Anand A Kekre

John Richard Swift

Niranjan Sanjiv Pendharkar

Raghu Krishnamurthy

Amitava Guha

James M Mott

Shyam Prakash Velupula

Arun M Rokade

Shishir S Asgaonkar

John Joseph Glen

Ashish K Saxena

Pooja Sarda

Prasad K Dharap

Mayuresh Phadke

Various methods and systems for using email to convey backup and restore data are disclosed. One method involves: receiving a request to perform a backup system operation; generating an email that includes data and metadata (which is associated with the data); and sending the email to an email address associated with a backup system component. The request can be a backup request, in which case the data includes data to be backed up, and the backup system component is a backup server. Alternatively, the request can be receiving a restore request. In this scenario, the data includes data to be restored, and the backup system component is a backup client.

System and method for conveying backup and restore data via email

Auto-trespass can be at least temporarily disabled subsequent to an automatic failover. The automatic failover exchanges roles between an active path and a passive path, such that the passive path becomes the active path and vice versa. By disabling auto-trespass, hosts that are unaware that the automatic failover has occurred will not trigger another failover when those hosts attempt to perform I/O operations via the formerly-active path. This can reduce performance decreases that would otherwise occur due to the active role being traded in a 'ping-pong' manner between the paths.

System and method for disabling auto-trespass in response to an automatic failover

Described herein is technology for, among other things root image caching and indexing for block-level distributed application management. The technology involves storing blocks of a root image on a first storage unit and storing blocks of leaf images on respective second storage units. The leaf images include additional data blocks not previously contained in the root image and changes made by respective compute nodes to the blocks of the root image. The technology includes caching blocks of the root image that have been accessed by at least one compute node. The technology also includes receiving indexing results pertaining to the root image from one compute node and providing the results for other compute nodes.

Root image caching and indexing for block-level distributed application management

A method and apparatus for scheduling a backup operation for a computer is described. The method includes searching a database for at least one record possessing an absence indicia. The method further includes scheduling an operation to be performed during a time period associated with the at least one record.

Method and apparatus for providing intelligent interpretation of calendaring information to schedule computer data operations

Described herein is technology for, among other things virus scanning for block-level distributed application management. The technology involves storing blocks of a root image on a first storage unit and storing blocks of leaf images on respective second storage units. The leaf images include additional data blocks not previously contained in the root image and changes made by respective compute nodes to the blocks of the root image. The technology includes receiving a notification from one of the compute nodes that the root image has been scanned for viruses and providing the notification to other compute nodes.

Virus scanning for block-level distributed application management

Various methods and systems for implementing agents that facilitate end user searches of a backup catalog via a desktop search tool are disclosed. One method involves: receiving a search request from a desktop search tool, which is configured for use by an end user of a backup system; searching a backup catalog, maintained by the backup system, in response to the search request; and providing a result of searching the backup catalog to the desktop search tool.

Backup search agents for use with desktop search tools

An embodiment of the present invention is directed to a system for distributing an application environment to a compute node. The system includes a first storage unit for storing blocks of a root image of the compute node and a second storage unit for storing a leaf image comprising new data blocks and changes to the blocks of the root image. The system further includes a union block device for interfacing between the compute node and the first and second storage units to distribute the application environment to the compute node. The union block device creates the application environment by merging the blocks of the root image stored on the first storage unit with the leaf image stored on the second storage unit.

Block-level I/O subsystem for distributed application environment management

One method of updating a change track map involves resetting a mirror recovery map for a data volume. Just before the mirror recovery map is reset, a change track map for the data volume can be updated, using the mirror recovery map. The mirror recovery map can be reset by a data element of a data processing system, while the change track map can be updated by a control element of the data processing system.

Updating a change track map based on a mirror recovery map

A system for communication using emulated LUN blocks in storage virtualization environments includes a first host and an off-host virtualizer. The off-host virtualizer may be configured to generate operating system metadata for a virtual storage device, and to make the operating system metadata accessible to the first host. A first layer of a storage software stack at the host may use the operating system metadata to detect the existence of the virtual storage device as an addressable storage device. The off-host virtualizer may also be configured to provide configuration information at a designated set of block addresses within the virtual storage device. A second layer of the storage software stack may be configured to read the configuration information from the designated set of blocks.

System and method for communication using emulated LUN blocks in storage virtualization environments

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.

Method and system for virtualization switch failover

A method and system for virtual storage element placement within a storage area network is disclosed. According to one embodiment of the present invention, first data is received which specifies an access characteristic of a virtual storage element to be associated with a storage area network. Once received, the first data is used along with second data specifying a topology of a storage area network to select a virtualization device of the storage area network. According to another embodiment of the present invention, third data specifying a characteristic of one or more virtualization devices of the storage area network is additionally used to select the virtualization device. Thereafter, the virtual storage element to be associated with the storage area network is associated with the selected virtualization device.

Method and system for virtual storage element placement within a storage area network

A method and system for mirror storage element resynchronization in a storage virtualization device is disclosed. According to one embodiment of the present invention, a read operation on a region of a data volume is received at a first module of a first storage virtualization device where the data volume is associated with at least a first mirror storage element and a second mirror storage element, a state indicated by a bit corresponding to the region of the data volume within a first synchronization map is determined in response to receiving the read operation, the read operation is processed using the first module if the bit is determined to indicate a first state and using a second module of the first storage virtualization device if the bit is determined to indicate a second state.

Growing community of inventors

Pune, India

Mukul Kumar