StorageCraft Assigned Three Patents

Pruning unwanted file content from image backup
StorageCraft Technology Corporation, Draper, UT, has been assigned a patent (9,152,507) developed by Bushman, Nathan S., Pleasant Grove, UT, for a “pruning unwanted file content from an image backup.”

The abstract of the patent published by the U.S. Patent and Trademark Office states: ”Pruning unwanted file content from an image backup. In one example embodiment, a method of pruning unwanted file content from an image backup includes identifying files to be excluded from a base image backup of a source storage, identifying a set of all allocated blocks in the source storage at a first point in time by accessing a file system block allocation map, FSBAM, pruning the set of all allocated blocks to exclude the allocated blocks that correspond to content of the files to be excluded, backing up the pruned set of allocated blocks, and not backing up the excluded allocated blocks, in the base image backup, and restoring the base image backup to a restore storage, the restoring including pruning FSM of a file system of the restore storage to modify metadata associated with the files to be excluded prior to exposing the file system to any user.“

The patent application was filed on September 5, 2014 (14/477,984).

Staged restore of decremental backup chain
StorageCraft Technology Corporation, Draper, UT, has been assigned a patent (9,152,504) developed by Bushman, Nathan S., Pleasant Grove, UT, and Lee, Douglas Mark, Orem, UT, for a “pruning unwanted file content from an image backup.”

The abstract of the patent published by the U.S. Patent and Trademark Office states: ”Staged restore of a decremental backup chain. In one example embodiment, a method includes, first, restoring a first backup of a source storage to a restore storage. Next, a second backup of the source storage in a decremental backup chain of the source storage is identified. Then, a third backup of the source storage in the decremental backup chain of the source storage is identified. Next, blocks in the decremental backup chain that were newly allocated in the source storage between the first point in time and the second point in time are identified. Then, the newly-allocated blocks are restored to the restore storage. Next, blocks in the decremental backup chain that were changed in the source storage between the first point in time and the second point in time are identified. Lastly, the changed blocks are restored to the restore storage.“

The patent application was filed on September 30, 2014 (14/501,795).

Hash collision recovery in deduplication vault
StorageCraft Technology Corporation, Draper, UT, has been assigned a patent (9,152,500) developed by Gardner, Andrew Lynn, Oak City, UT, for a “hash collision recovery in a deduplication vault.”

The abstract of the patent published by the U.S. Patent and Trademark Office states: ”Hash collision recovery in a deduplication vault. In one example embodiment, a method for hash collision recovery in a deduplication vault includes creating first parity data for all unique blocks of a source storage at a point in time. The first parity data includes both the unique blocks as well as an order of block positions of the unique blocks as stored in the source storage. Next, a hash value is generated for each of the unique blocks. Then, a backup is stored in a deduplication vault including each of the unique blocks together with its corresponding hash value. Next, second parity data is created for all of the unique blocks of the backup. Then, the first parity data is compared to the second parity data to determine whether one or more hash collisions occurred resulting in one or more missing unique blocks.“

The patent application was filed on September 22, 2014 (14/492,993).