Emc IP Holding Company LLC

Dell Products Inc.

Pallavi Prakash

Shelesh Chopra

Krishnendu Bagchi

Sudha Hebsur

Vipin Kumar Kaushal

Nitin Anand

Matthew Dickey Buchman

Amarendra Behera

Vipin Kaushal

Anand Reddy

Gajendran Raghunathan

Jaishree Balasubramanian

Niketan Narayan Kalaskar

Asif Khan

Sudha Vamanraj Hebsur

A data protection agent is installed within a virtual machine (VM). A request to perform a backup is received. The request includes identifications of virtual machine disks (VMDKs) associated with the virtual machine. Communications are exchanged with a disk manager of a guest operating system of the VM to generate a map that maps the VMDKs to volumes attached to the VM. Communications are exchanged with an application in the VM to be protected to identify which of the volumes contain application databases associated with the application. A copy service is instructed to prepare the application for backup. A request is issued to a snapshot data mover for a snapshot of the application. The snapshot request includes identifications of a subset of the VMDKs mapped to corresponding volumes that contain the application databases. VMDKs mapped to corresponding volumes not containing the application databases are excluded from the snapshot request.

System and method to exclude unsupported disks during application consistent backups

A data protection agent is installed within a virtual machine (VM). A request to freeze an application in the VM is issued to a copy service. A request for a snapshot is issued to a snapshot data mover, external to the VM. Upon receiving an identifier for the snapshot, communications are exchanged with the copy service to thaw the application, the snapshot identifier is passed to the agent thereby allowing the agent to access the snapshot and rollover data from the snapshot to secondary storage for the backup, and notification to the copy service about a success of the backup is withheld. During the rollover, listening begins for status updates concerning a progress of the rollover. Based on the status updates, the copy service is notified that the backup failed or succeeded.

System and method for avoiding unwanted log truncation (data loss) during application consistent virtual machine snapshots

A data protection agent is installed as a guest within a virtual machine (VM) hosted by a host and a snapshot data mover is installed external to the VM on the host. Upon receiving a command to conduct a backup, a first request is issued to a copy service of the VM indicating that an application in the VM is to be backed up. A second request for a snapshot is issued to the snapshot data mover. The snapshot data mover passes the snapshot request to a virtual machine manager. Upon the snapshot data mover receiving an identifier for the snapshot, the snapshot data mover passes the snapshot identifier to the agent thereby allowing the agent to locate the snapshot and conduct the backup.

Transparent snapshot-based application consistent virtual machine protection

A command is received by a data protection agent to conduct a file system-consistent backup of a virtual machine (VM) having a copy service. A first request is issued to the copy service indicating that all files of the VM are to be backed up and that archive attributes of all the files should remain unchanged. A second request is issued to a snapshot data mover for a snapshot of the VM. The snapshot request is passed to a virtual machine manager. Upon the snapshot data mover receiving an identifier identifying the snapshot from the virtual machine manager, the snapshot identifier is passed to the data protection agent, thereby allowing the agent to locate the snapshot and conduct the backup.

Transparent snapshot-based file system consistent virtual machine protection

A production host includes a persistent storage and a backup manager. The persistent storage stores virtual machine data and a service group list associated with an application service group. The backup manager obtains a backup generation request for the application service group that includes virtual machines, and each of the virtual machines uses a copy of the virtual machine data; in response to obtaining the backup generation request: identifies a first virtual machine the virtual machines that is prioritized for generating a backup for the application service group based on the service group list; attempts to generate the backup using the first virtual machine and the copy of the virtual machine data; and stores the backup in backup storage.

System and method for selection of node for backup in distributed system

An agent for managing backup generation for virtual machines includes a persistent storage stores backup policies and a backup manager that obtains request for generating a backup for a first virtual machine of the virtual machines and, in response to obtaining the request, generates a backup load prediction for generating the backup; performs a resource availability analysis of a host computing device hosting the first virtual machine to determine computing resources availability for generating the backup; makes a first determination, using the backup load prediction and the computing resource availability, that the host computing device has insufficient resources for generating the backup; and, in response to the first determination, performs a backup type analysis on existing backups associated with the first virtual machine to obtain at least one updated backup policy; and generates a reduced-resource cost backup for the virtual machine using at least one of the updated backup policies.

System and method for dynamic configuration of backup agents

A backup storage includes a persistent storage and a backup manager. The persistent storage stores backups of entities and a global application data map. The backup manager obtains a restoration request for restoration of an application hosted by an entity of the entities; makes a determination to accelerate the restoration based, at least in part, on the application; in response to the determination: identifies a virtual disk level backup of the entity that is associated with the application using the global application data map; obtains the virtual disk level backup from the backups of the entities; and restores the application using the virtual disk level backup.

System and method for accelerated data access

A method for providing an application service to clients includes identifying a failure of the application service that causes the application service to be suspended; in response to identifying the failure: instantiating an instance of an application for providing the application service in a production host; identifying at least one virtual disk level backup that is: associated with the application and is a portion of deduplicated backups; extracting the at least one virtual disk level backup from deduplicated backups to obtain a copy of the at least one virtual disk level backup; identifying application data associated with the application within the copy of the at least one virtual disk level backup; transitioning an application service session for a client of the clients to the instance of the application; and resuming the application service for the client using the instance of the application and the application data.

System and method for accelerating application service restoration

A backup storage includes persistent storage and a backup manager. The persistent storage stores backups of entities and an entity list that lists the entities. The backup manager obtains a restoration availability request from a user; filters the entity list based on an identity of the user to obtain an available entity list; identifies, based on user input obtain based on the available entity list, an entity of the entities; and restores the entity using the backups.

System and method for limiting restoration access

A method for managing backups that includes generating a full backup of a database and, after generating the full backup, generating N incremental backups of the database and generating a first differential backup of the database after the N incremental backups have been generated, wherein the first differential backup is generated relative to the full backup.

Method and system for automation of differential backups

A backup storage includes a persistent storage and a backup manager. The persistent storage stores virtual machine level backups and application level backups. The backup manager obtains a request for a point in time restoration of an application; identifies, based on the application, a virtual machine level backup of the virtual machine level backups that is associated with: a virtual machine that hosted an instance of the application and a first point in time prior to a restoration point in time specified by the request for the point in time restoration; identifies, based on the application, an application level backup of the application level backups that is associated with the restoration point in time; generates a point in time backup using: the identified virtual machine level backup, and the identified application level backup; and services the request using the point in time backup.

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Bengaluru, India

Pallavi Prakash