Unisys Assigned Two Patents

Simultaneous state-based cryptographic splitting in secure storage appliance
Unisys Corporation, Blue Bell, PA, has been assigned a patent (10,007,807) developed by Summers, Scott, Collegeville, PA, and French, Albert, Schwenksville, PA, for a “simultaneous state-based cryptographic splitting in a secure storage appliance.“

The abstract of the patent published by the U.S. Patent and Trademark Office states: “Methods and systems for managing I/O requests in a secure storage appliance are disclosed. One method includes receiving a plurality of I/O requests at the secure storage appliance, each I/O request associated with a block of data and a volume, each volume associated with a plurality of shares stored on a plurality of physical storage devices. The method further includes storing a plurality of blocks of data in buffers of the secure storage appliance, each of the blocks of data associated with one or more of the plurality of I/O requests. The method also includes associating a state with each of the blocks of data, the state selected from a plurality of states associated with processing of an I/O request. The method includes determining the availability of a resource in the secure storage appliance, the resource used to process an I/O request of a buffer, and, upon determining that the resource is available, applying the resource to a block of data in the buffer and updating the state associated with the block of data.”

The patent application was filed on December 30, 2008 (12/346,561).

Database replication with continue and tape-type-override functions
Unisys Corporation, Blue Bell, PA, has been assigned a patent (10,007,429) developed by Sorenson, Ellen L, Mounds View, MN, for a “database replication with continue and tape-type-override functions.“

The abstract of the patent published by the U.S. Patent and Trademark Office states: “Database performance may be improved by creating additional backups from an existing backup, rather than the original database or audit log source. A second backup may be created from a first backup by copying the files from the first backup to the second backup. The replication from a first backup to a second backup with modification of the file history information allows identical backups to exist on different types of storage devices, including virtual storage devices. Continue functionality may be implemented during a move function to restart replication at a new starting point while retaining the existing move set. Tape-type-override functionality may be implemented during the replication to replace the tape type for the backups with another compatible type while retaining the original type for history file entries, tape trailers, and messages.”

The patent application was filed on February 24, 2015 (14/629,908).