Veritas Technologies LLC

Symantec Corporation

Satyajit Gorhe Parlikar

Weibao Wu

Fanglu Guo

Yun Yang

Matthew J Kokotovich

Xianbo Zhang

Timothy Michael Naftel

David Teater

Thomas Hartnett

Benjamin Potvien

A computer-implemented method for increasing restore speeds of backups stored in deduplicated storage systems may include (1) identifying a backup that includes data stored in at least one data container within a deduplicated storage system, (2) detecting a subsequent backup that includes additional data, (3) calculating an amount of duplication between the additional data included in the subsequent backup and the data stored in the data container, (4) determining that the amount of duplication between the additional data and the data stored in the data container is below a predetermined threshold, (5) identifying at least one additional data container to store the additional data instead of deduplicating the additional data with respect to the data container, and then (6) storing the additional data in the additional data container to facilitate increasing a restore speed of the subsequent backup. Various other methods, systems, and computer-readable media are also disclosed.

Systems and methods for increasing restore speeds of backups stored in deduplicated storage systems

The present disclosure provides for defragmenting deduplicated data, such as one or more backup image files, stored in a deduplicated data store. A defragmentation module can be implemented on a deduplication server to reduce fragmentation of backup images and improve processing time for restoring a backup image. A defragmentation module can be configured to defragment a backup image file by migrating portions of data of the backup image file that are stored in various containers at non-contiguous locations throughout deduplicated data store. A defragmentation module can contiguously write the portions to one or more containers, which are stored at one or more new locations in the deduplicated data store. A defragmentation module can be configured to evaluate whether portions of a backup image file meet criteria for defragmentation. A defragmentation module can also be configured to update location information about the portions that are migrated to the new container(s).

Constrained backup image defragmentation optimization within deduplication system

A method for managing a backup procedure is described. In one embodiment, the method includes performing a first backup of a dataset, selecting a value N, dividing the dataset into N segments, and upon writing at least the portion of the dataset to the second storage system, performing a first rewrite. Each segment of the dataset includes 1/Nth of the dataset. The first backup includes writing at least a portion of the dataset from a first storage system to a second storage system. The first rewrite includes writing a first segment of the dataset from the first storage system to the second storage system.

Managing a backup procedure

Techniques for improving performance of a backup system are disclosed. In one particular exemplary embodiment, the techniques may be realized as a method for improving performance of a backup system. The method may comprise performing a backup of a client device, tracking, using at least one computer processor, references to data segments that are located outside of a unit of storage associated with the backup, calculating utilization of the unit of storage associated with the backup based on the tracked references, determining if the calculated utilization meets a specified parameter, and determining one or more responsive actions in the event the calculated utilization meets the specified parameter.

Techniques for improving performance of a backup system

A computer-implemented method for creating optimized synthetic backup images may include (1) transferring a backup image that represents a virtual machine at a specific point in time to a server that stores the backup image, (2) identifying a subsequent backup image that represents at least a portion of the virtual machine at a subsequent point in time, (3) creating a data stream that includes (i) at least one changed data block captured in the subsequent backup image and (ii) at least one reference that identifies where at least one unchanged data block is located within the backup image stored on the server, and then (4) transferring the data stream to the server to enable the server to create an optimized synthetic backup image of the virtual machine. Various other methods, systems, and computer-readable media are also disclosed.

Growing community of inventors

Shoreview, MN, United States of America

Satyajit Gorhe Parlikar