Emc IP Holding Company LLC

Symantec Corporation

Dell Products Inc.

Symantec Operating Corporation

Schneider Electric It Corporation

Michael Anthony

Mark Aldred

Shanmuga Anand Gunasekaran

Anurag Bhatnagar

Robert Warren Perry

Ronald Passerini

Christopher Angelo Rocca

Deepak Vokaliga

David M King

Shane Sullivan

Shanmuga A Gunasekaran

Michael Malamud

Aloke Guha

Michael T Rowan

John W Bates

Nicos Vekiarides

Mithun Mahendra Varma

William White

Meenakshi Rani

Deepak Kumar Shivanna Vokaliga

Christopher Rocca

Adam Matusiak

Michael Henriksen

Techniques are provided for incremental snapshot recovery from a remote storage system. One method comprises, in response to a request to restore a snapshot from a remote storage system: obtaining, from a local storage system, a first bitmap for the first snapshot indicating differences with respect to a previous snapshot, comparing the first bitmap to an allocation bitmap of an earliest maintained snapshot to obtain a baseline bitmap representing a baseline version of the first snapshot; recovering the baseline version of the first snapshot, using the baseline bitmap, from the remote storage system. The snapshots may be stored in the remote storage system in a time order, and following the recovery of the first snapshot, a user may move forward or backward in time along a lineage of snapshots by copying only the changed blocks of bitmaps between two desired points in time.

Incremental snapshot recovery from remote storage system

An apparatus comprises at least one processing device configured to identify, utilizing virtualization software running on a storage system, a snapshot lineage comprising snapshots of a storage volume, the snapshot lineage comprising (i) a local snapshot lineage on storage devices of the storage system and (ii) a cloud snapshot lineage on cloud storage external to the storage system. The processing device is also configured to utilize the virtualization software to select a given snapshot in the local snapshot lineage to copy to the cloud snapshot lineage, to create a cloud storage volume on the cloud storage, and to map the cloud storage volume to the given snapshot in the local snapshot lineage. The processing device is further configured to copy the given snapshot to the cloud snapshot lineage by utilizing a data mover of the storage system to write data of the given snapshot to the cloud storage volume.

Orchestration of storage system-based snapshot shipping

An apparatus comprises at least one processing device configured to identify, utilizing virtualization software running on a storage system, a snapshot lineage comprising snapshots of a storage volume, the snapshot lineage comprising (i) a local snapshot lineage on the storage system and (ii) a cloud snapshot lineage on cloud storage external to the storage system. The processing device is also configured to utilize the virtualization software to select a given snapshot in the cloud snapshot lineage to recover to the local snapshot lineage, to expose a cloud storage volume for the given snapshot, and to map the cloud storage volume to a target local storage volume on the storage system. The processing device is further configured to recover the given snapshot to the local snapshot lineage by utilizing a data mover of the storage system to write data of the given snapshot to the target local storage volume.

Orchestration of storage system-based snapshot recovery

An apparatus comprises a processing device configured to identify a snapshot lineage comprising snapshots of a given storage volume, the snapshot lineage comprising (i) a local snapshot lineage stored on a storage system and (ii) a cloud snapshot lineage stored on cloud storage of at least one cloud external to the storage system, the cloud snapshot lineage comprising at least a subset of the snapshots of the given storage volume. The processing device is also configured to determine whether the local snapshot lineage is associated with any current local storage volume of the storage system corresponding to the given storage volume and, responsive to determining that the storage system is not associated with any current local storage volume corresponding to the given storage volume, to select a snapshot from the cloud snapshot lineage and recover the selected snapshot to a new local storage volume on the storage system.

Recovering a storage volume associated with a snapshot lineage from cloud storage

An apparatus comprises at least one processing device configured to select a snapshot lineage comprising one or more snapshots of a storage volume comprising data stored on one or more storage devices of a storage system, the snapshot lineage comprising at least one cloud snapshot lineage, the at least one cloud snapshot lineage comprising at least a subset of the one or more snapshots of the storage volume that have been copied to cloud storage of at least one cloud external to the storage system. The at least one processing device is also configured to generate configuration data for accessing the at least one cloud snapshot lineage. The at least one processing device is further configured to transfer the configuration data to at least one additional processing device to enable the at least one additional processing device to access the at least one cloud snapshot lineage.

Generating configuration data enabling remote access to portions of a snapshot lineage copied to cloud storage

An apparatus includes a processing device configured to identify a snapshot policy for creating a snapshot lineage comprising snapshots of a storage volume comprising data stored on a storage system, the snapshot lineage comprising (i) a local snapshot lineage stored on the storage system and (ii) at least one cloud snapshot lineage stored on cloud storage. The processing device is also configured to generate snapshots of the storage volume in accordance with the snapshot policy, to store the snapshots in the local snapshot lineage, and to copy snapshots from the local snapshot lineage to the at least one cloud snapshot lineage in accordance with the at least one snapshot policy. The processing device is further configured to provide an interface for managing the snapshot lineage by accessing, from the storage system, snapshots of the storage volume in the local snapshot lineage and the at least one cloud snapshot lineage.

Managing snapshots stored locally in a storage system and in cloud storage utilizing policy-based snapshot lineages

An apparatus comprises a processing device configured to identify a snapshot lineage comprising (i) a local snapshot lineage stored on a storage system and (ii) a cloud snapshot lineage stored on cloud storage of a cloud external to the storage system. The processing device is also configured to select, in accordance with a snapshot policy, a snapshot in the local snapshot lineage to copy to the cloud snapshot lineage. The processing device is further configured to create a virtual device on the storage system, to link the selected snapshot to the virtual device, to determine data of the selected snapshot that is to be copied from the virtual device to a cloud storage volume on the cloud storage, and to copy the selected snapshot to the cloud snapshot lineage by copying the determined data from the virtual device to the cloud storage volume.

Moving snapshots from a local snapshot lineage on a storage system to a cloud snapshot lineage on cloud storage

An apparatus comprises a processing device configured to detect a request to resume copying of a snapshot of a storage volume from a storage system to cloud storage, to determine an original snapshot differential for the snapshot comprising differential data of the storage volume on the storage system, and to obtain checkpointing information for the snapshot characterizing a status of copying portions of the snapshot to the cloud storage. The processing device is also configured to generate a resume snapshot differential for the snapshot comprising portions of the snapshot to be copied to the cloud storage determined based at least in part on a comparison of the original snapshot differential with the checkpointing information characterizing the status of copying the one or more portions of the snapshot to the cloud storage. The processing device is further configured to resume copying of the snapshot utilizing the resume snapshot differential.

Resuming copying of snapshots from a storage system to cloud storage

An apparatus comprises a processing device configured to identify a snapshot lineage comprising snapshots of a given set of storage volumes, the snapshot lineage comprising (i) a local snapshot lineage stored on a storage system and (ii) a cloud snapshot lineage stored on cloud storage of a cloud external to the storage system. The processing device is also configured to select a snapshot to recover from the cloud snapshot lineage to the storage system, to create a set of new storage volumes on the storage system, to generate a recovery map linking each of a set of cloud storage volumes on the cloud storage that comprises data of the selected snapshot to at least one of the new storage volumes, and to recover the selected snapshot from the cloud snapshot lineage by copying data from the set of cloud storage volumes to corresponding linked ones of the new storage volumes.

Recovering snapshots from a cloud snapshot lineage on cloud storage to a storage system

A cloud storage gateway is used to migrate a volume from a source cloud storage provider to a target cloud storage provider. If necessary, the gateway reconfigures the size of a logical cache associated with local storage devices so that the entire volume can be stored locally. Flushing is disabled and all of the locally stored volume pages are marked as dirty. After compression and encryption policies associated with the source and target are verified to be compatible, flushing is enabled and metadata is updated.

Cloud-to-cloud data migration via cache

Techniques for power analysis for data centers are disclosed. In one particular exemplary embodiment, the techniques may be realized as a method for power analysis for a plurality of computing platform components comprising receiving information associated with a component, retrieving, using a computer processor, electronically stored data associated with the component, estimating power usage of the component based at least in part on the stored data, and outputting an indicator of power usage.

Techniques for power analysis

Techniques for time-dependent storage management with a portable application programming interface are disclosed. In one particular exemplary embodiment, the techniques may be realized as a method for time-dependent storage management. The method may comprise interfacing with a host and a storage system having one or more storage devices. The method may also comprise intercepting all write commands that the host issues to the storage system. The method may additionally comprise performing a copy-on-write operation for each intercepted write command, wherein copy-on-write data and metadata associated with each intercepted write command are recorded, the metadata including at least a timestamp associated with each intercepted write command.

Techniques for time-dependent storage management with a portable application programming interface

A technique for improving scalability and portability of a storage management system is disclosed. In one particular exemplary embodiment, the technique may be realized as a storage management system operatively coupled to a storage system. The storage management system may comprise a plurality of processor modules, wherein each processor module is capable of intercepting write commands directed to the storage system, backing up data associated with the write commands, and generating metadata having timestamps for the backup data. The storage management system may also comprise one or more indexing modules that create one or more indexing tables for the backup data based on the metadata, wherein the one or more indexing modules are in communication with the processor modules and the storage system.

Technique for improving scalability and portability of a storage management system

A technique for remapping data in a storage management system is disclosed. In one particular exemplary embodiment, the technique may be realized as a method for remapping data in a storage management system having backup data that enable restoration of historical data of a storage system. The method may comprise receiving at least one access request for a first set of historical data. The method may also comprise identifying a second set of historical data, wherein the first set of historical data is a subset of the second set of historical data. The method may further comprise identifying, in the storage management system, one or more storage locations containing backup data for the second set of historical data. The method may additionally comprise storing a mapping list of the one or more identified storage locations to facilitate subsequent access requests for any of the second set of historical data.

Technique for remapping data in a storage management system

A technique for timeline compression in a data store is disclosed. In one particular exemplary embodiment, the technique may be realized as a method for timeline compression in a storage system, wherein digital content of the storage system is backed up to enable restoration of the digital content to one or more points in a timeline. The method may comprise selecting a time interval in the timeline. The method may also comprise identifying one or more sets of backup data recorded for the selected time interval, wherein the identified one or more sets of backup data represent at least a portion of old data overwritten during the selected time interval. The method may further comprise discarding other backup data recorded for the selected time interval, thereby reducing a granularity level of the timeline in the selected time interval.

Growing community of inventors

Wilmington, MA, United States of America

Michael Anthony