International Business Machines Corporation

Michael S Fruchtman

James Patrick Smith

Avishai Haim Hochberg

Vadzim Ivanovich Piletski

David George Derk

Robert Clair Edwards, Jr

Delbert B Hoobler, Iii

Christopher Zaremba

Stefan Bender

Thomas Franklin Ramke, Jr

Omar Bond Vargas

Peter Tanenhaus

Vadzim L Piletski

Provided are a computer program product, system, and method for hypervisor agnostic interchangeable backup recovery and file level recovery from virtual disks. Data is stored for a first virtual disk that represents data in a first format and metadata for the first virtual disk in a common data format in a storage having a fixed block length. A virtual disk file represents data in a second format that allows variable size blocks. Multiple instances of the fixed block length of blocks of data for the second virtual disk indicated in the virtual disk file are read. Each instance of the read fixed block length of blocks is written to the storage in the common data format with metadata describing the format of the blocks in the second virtual disk, and can be restored to a third virtual disk in the first or second format.

Backing-up blocks from virtual disks in different virtual machine environments having different block lengths to a common data format block length

For accessing files from block-level backups of a virtual disk, a system, method, computer program product and apparatus are disclosed. The system includes an apparatus with a changed block module that determines changed blocks between a previous and a current block-level backup of a virtual disk. A mapping module maps logical clusters of the virtual disk to the changed blocks and identifies files corresponding to the logical clusters. A changed file module designates files corresponding to the logical clusters as changed files, unless current attributes of files for the current backup match attributes of the files in a backup file index corresponding to the previous backup. The changed file module stores the current attributes and extents for changed files within blocks of a backup storage device for updating in the backup file index. The method and computer program product perform these functions and may use the system and the apparatus.

File level access to block level incremental backups of a virtual disk

Provided are techniques for providing and managing data protection by using incremental forever for storage to cloud object stores. An incremental offload is performed by using one or more extents to identify blocks of data for a version of a virtual machine in operational recovery storage to be offloaded to a cloud object store, wherein each of the one or more extents identifies locations of the blocks of data. The blocks of data are converted to objects in an incremental forever data format. The objects are offloaded to the cloud object store. The details of the offloading of the objects are stored in a local database in the operational recovery storage. The local database is copied from the operational recovery storage to the cloud object store as a database copy.

Providing and managing data protection by using incremental forever for storage to cloud object stores

Hypervisor agnostic interchangeable backup recovery and file level recovery from virtual disks

For accessing files from block-level backups of a virtual disk, an apparatus is disclosed. The apparatus includes a changed block module that obtains a list of changed blocks between a previous and a current backup of a virtual disk. The apparatus includes a mapping module that maps logical clusters of the virtual disk to the changed blocks and identifies files corresponding to the logical clusters. The apparatus further includes a changed file module that designates the files corresponding to the logical clusters as changed files, unless current attributes of the files for the current backup match attributes of the files in a backup file index corresponding to the previous backup of the virtual disk. The changed file module further stores the current attributes and extents for the changed files within blocks of a backup storage device for updating in the backup file index.

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San Jose, CA, United States of America

Michael S Fruchtman