Emc Corporation

Emc IP Holding Company LLC

Kiran Bachu

Vladimir Mandic

Vijay C Madhavapeddi

Srinivasan Ramachandran

Richard Meier

Venu Varma

Vaibhav Khanduja

Bala Vijayakumar

Manjunatha Hebbar

Christopher Hercules Claudatos

Scott H Ogata

Daniel Ravan

Seema Parveen

Ajay Kushwah

Bharath Siddapur Hemashekar

Gururaj Reddy Kulkarni

Paul Lester Popelka

Harish Jayaram

Arun Kumar Bhaskar

Bob Lyon

Mark Lonsdale

A request is received from a client for accessing a first backup instance of first backup data associated with the client, wherein the request includes a first filename and a first savetime. A first directory record database is identified from a plurality of directory record databases based on a client identifier (ID) identifying the client. A first node identifier associated with a first directory comprising the first filename from the first directory record is identified. A first node record database is identified based on the first savetime from the node record databases, the first node record database including node records, each corresponding to a file or a directory of files associated with the first backup instance. A first node record is obtained from the first node record database based on the first node identifier. Node record information associated with the first node record is returned to the client.

Method and system for enhanced backup database indexing

Restoring a virtual machine is disclosed. An indication of the virtual machine of a primary site to be restored at a remote site using a copy stored at the remote site of a backup data of the virtual machine of the primary site is received. The virtual machine is restored to the remote site using a backup application deployed at the remote site as a virtual appliance managed using a virtual environment management platform.

Cross site recovery of a VM

One example method includes sending, from a manager client to a manager server, a recover request that identifies data targeted for recovery and restoration, and receiving, at the manager client, from a server agent at the manager server: a notification that a recover session corresponding to the recover request has been created; and a recover session ID. The method also includes performing, by a backup client, a deviceless recover and restore process after the recover session has been created, and transmitting, after completion of the deviceless recover and restore process, a communication from the manager client to the server agent indicating that the deviceless recover and restore process is complete.

Deviceless brokerless backup

Reconciling data is disclosed. It is determined whether a state of a first backup application is consistent with a state of a second backup application. In the event the state of the first backup application is not consistent with the state of the second backup application, the state of the first backup application is updated to be consistent with the state of the second backup application.

Metadata reconciliation

A system for building a restore list for a restore includes a processor and a memory. The processor is configured to determine whether a next sibling record of a directory index record of a root directory includes a subdirectory or a file, wherein the content of the directory index is determined from an incremental backup of the root directory. In the event that the next sibling record comprises a subdirectory of the root directory, the processor is configured to push a directory path associated with the next sibling record onto a directory stack. In the event that the next sibling record comprises a file, the processor is configured to add the latest index record associated with the file to a restore list in the event that the file is not already in the restore list. The restore list is provided for a restore of the state of data of the root directory at a desired time.

Efficient building of restore list

A data protection policy generator is described. A first set of selections is received to generate a first task. The first set of selections includes selections of a first source, a first data set, a first destination, and a first execution schedule. A second set of selections is received to generate a second task. The tasks may be any of a backup copy task, a clone task, a backup verification task, a snapshot creation task, a snapshot backup task, a snapshot clone task, a backup delete task, a backup query task, or a restore task. The second set of selections includes selections of a second source, a second data set, a second destination, and a second execution schedule. The first data destination includes the second data source. Execution of the first task and the second task is enabled based on at least the first execution schedule and the second execution schedule.

Method and system for a data protection policy generator

In one example, a method for backing up data is performed in part by a manager server that receives a request for a deviceless backup session. The manager server authenticates the request and authorizes media database and index database operations. Next, the requested deviceless backup session is created and a backup session ID is transmitted that corresponds to the created deviceless backup session. The manager server then spawns an agent to handle communications with other devices. An update is then received concerning a backup performed with respect to a target device, and a confirmation sent that that the backup has been completed. Catalogue information concerning the completed backup is then received and stored, and the deviceless backup session and agent terminated.

Parent backup application driving of children backup applications is described. An instruction for a child backup application to execute a child backup task is communicated from a parent backup application to the child backup application. An instruction for a second child backup application to execute a second child backup task may be communicated from the parent backup application to the second child backup application. An execution of the child backup task by the child backup application is communicated from the child backup application to a parent backup application. An execution of the second child backup task by the second child backup application may be communicated from the second child backup application to the parent backup application. A parent backup task is executed by the parent backup application. At least one child backup application inherently lacks a functionality to execute the parent backup task as the parent backup application executes the parent backup task.

Method and system for parent backup application driving of children backup applications

A method and system for implementing enhanced indexing in a backup system as well as manage file recovery. The method implemented at a backup server receives a filename from a client to be retrieved from a backup system and queries the filename on a directory records database. As a query return, a directory record is received including a savetime identifying a backup instance and an inode of a directory for the filename of the requested file. The process then queries the inode on a node records database and receives at least one node record where the node record has the inode of the directory record as a parent.

Method and system for file recovery using enhanced backup database indexing

A system for an efficient data rehydration comprises a server, one or more reader device managers, a writer device manager, and a verifier. The server is for receiving a restore list comprising a plurality of storage locations and lengths for performing a data rehydration. The one or more reader device managers is for reading a data set indicated by the restore list by reading the plurality of storage locations for the lengths from one or more storage nodes. The plurality of storage locations and lengths indicate chunks from a client system stored as part of a full or as an incremental backup session on a storage device attached to a storage node. The writer device manager is for transferring the data set to a save node. A verifier is for verifying transfer of the data set.

Efficient data rehydration

Protecting a first backup application is disclosed. A backup of a state of the first backup application is received. The first backup application coordinates backup of a virtual environment. A second backup application external to the virtual environment is used to store the backup. The backup may be stored in a data storage external to the virtual environment.

Automated protection of a VBA

A method and system for implementing enhanced indexing in a backup system as well as manage file recovery. The method implemented at a backup server receives backup meta data from a client over a network. The backup meta data is checked to determine whether the backup meta data is directory data or node data and the directory data and node data from the received backup meta data is committed to a set of databases as received during the backup process.

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Cupertino, CA, United States of America

Kiran Bachu