Quantum Corporation

Emc Corporation

Other

Data Domain, Inc.

Greg Wade

Barry Herman

Gerald M Simon

Allan J Bricker

Richard Johnsson

Turguy Goker

Roderick B Wideman

Don Doerner

John D LaRue

Michael Zeis

Steve Lord

Example apparatus and methods process virtual machine image level backups that may include files that are compressed and files that are not compressed. Example apparatus and methods may produce virtual machine image level backups by selectively compressing some files associated with the image while leaving other files in their uncompressed state. Example apparatus and methods may selectively recover a file or even an entire disk image from an image level backup that may include both compressed files and files that are not compressed. The file recovery or image recovery may be performed at the file level by accessing files in the image and selectively decompressing files that are compressed in the image while passing through files that are not compressed in the image. Different files in a single image may be compressed or decompressed using different techniques.

File level recovery using virtual machine image level backup with selective compression

Embodiments include methods, apparatus, or processors configured to access a tracking enabled storage volume associated with a container; perform a full backup of the storage volume, where performing the full backup includes defining a full backup point; perform a first incremental backup of the storage volume based on the full backup point, where performing the first incremental backup includes defining a current backup point; determine whether a backup termination condition has been met; upon determining that the backup termination condition has not been met: performing a subsequent incremental backup of the storage volume based on the current backup point; and updating the current backup point. Embodiments may restore the tracking enabled storage volume from the full backup and the incremental backups.

Data protection of container persistent storage with changed block tracking

Embodiments include a data aware deduplicating object store. The data aware deduplicating data store includes a consistent hashing logic that manages a consistent hashing architecture for the object store. The consistent hashing architecture includes a metadata ring and a bulk ring. The consistent hashing architecture may be a multiple ring architecture comprising a metadata ring and two or more bulk rings. A bulk ring may include a key/value (k/v) data store, where a k/v data store stores a shard of an index and a reference count that facilitates the individual approach to garbage collection or data reclamation. The data aware deduplicating data store also includes a deduplication logic that provides data deduplication for data to be stored in the object store. The deduplication logic performs variable length deduplication and provides a shared nothing approach.

Data aware deduplication object storage (DADOS)

Example apparatus and methods use two types of storage to improve boot time associated with recovering a virtual machine running on a hypervisor. The first storage is deduplication based and the second storage is not deduplication based. Example apparatus and methods may read data from the first storage to support operations immediately upon the VM booting and until a full recovery has been completed. Example apparatus and methods may also write a snapshot to the second storage and then support random input/output for the virtual machine from the snapshot in the second storage immediately upon the VM booting until a full recovery has been completed. Having dual devices facilitates using deduplication storage for deduplication-centric I/O while non-deduplication storage is used for random I/O while transfer of a recovery image from a backup device to a primary device associated with the VM is completed.

Immediate recovery of virtual machine using deduplication device and snapshots

Example apparatus and methods provide two types of storage for a virtual machine running on a hypervisor. The first storage is de-duplication based and the second storage is not de-duplication based. Example apparatus and methods may acquire data from the first storage to instantiate the virtual machine, to instantiate an operating system on the virtual machine, or to instantiate an application on the virtual machine from the first storage. Example apparatus and methods may write a snapshot to the second storage and then support random input/output for the virtual machine, for the operating system, or for the application from the second storage. The snapshot may selectively be collapsed or the second storage may selectively be retired and thus example systems may selectively update the first storage from the second storage. Having dual devices facilitates using de-duplication storage for de-duplication-centric I/O while non-de-duplication storage is used for random I/O.

Efficiency of virtual machines that use de-duplication as primary data storage

A method for replicating a deduplicated storage system is disclosed. A stream of data is stored on an originator deduplicating system by storing a plurality of deduplicated segments and information on how to reconstruct the stream of data. The originator deduplicating system is replicated on a replica system by sending a copy of the plurality of deduplicated segments and information on how to reconstruct the stream of data to the replica system. A first portion of the deduplicated segments stored on the originator deduplicating system that is corrupted is identified. A copy of the first portion of the deduplicated segments is requested to be sent by the replica system to the originator deduplicating system.

Replication of deduplicated storage system

A method of replicating a deduplicated storage system is disclosed. The method comprises storing a stream of data on an originator deduplicating system by storing deduplicated segments and information on how to reconstruct the stream of data. The method further comprises replicating the originator deduplicating system by receiving a copy of the deduplicated segments, information regarding containers for the deduplicated segments, and information on how to reconstruct the stream of data transferred from the originator deduplicating system to the replica system.

A method of replicating a deduplicated storage system is disclosed. The method comprises requesting the state of a replica system. The method further comprises sending a container to the replica system and sending a file system log record to the replica system.

Growing community of inventors

San Jose, CA, United States of America

Greg Wade