Patents Assigned to Sutmyn Storage Corporation
  • Tape drive emulation system including tape library interface
    Patent number: 6324497
    Abstract: An improved virtual tape storage device that utilizes a standard tape library coupled to the host to destage virtual volumes to reclaim space in the virtual storage system.
    Type: Grant
    Filed: July 15, 1998
    Date of Patent: November 27, 2001
    Assignee: Sutmyn Storage Corporation
    Inventors: Neville Yates, Don Doerner, Larry Korbus, Stephen J. Moore
  • Error checking technique for use in mass storage systems
    Patent number: 6269464
    Abstract: A system of error checking a sequence of concatenated packets of data for errors utilizes a CRC checker and a predictor which generates a prediction based on an all ones sequence of bytes the same length as the sequence. The sequence includes segments ending with bang CRCs (!CRCs) and padding bytes of all ones.
    Type: Grant
    Filed: June 17, 1998
    Date of Patent: July 31, 2001
    Assignee: Sutmyn Storage Corporation
    Inventors: Touraj Boussina, Jerry Miller
  • Method for serializing and synchronizing data packets by utilizing a physical lock system and a control data structure for mutual exclusion lock
    Patent number: 6067587
    Abstract: A system for serializing and synchronizing data stored in a tape drive emulation system utilizes a physical lock system and control data MUTEXes to assure serialization.
    Type: Grant
    Filed: June 17, 1998
    Date of Patent: May 23, 2000
    Assignee: Sutmyn Storage Corporation
    Inventors: Jeffrey B. Miller, Tuan Nguyen
  • System and method for performing high-speed tape positioning operations
    Patent number: 6049848
    Abstract: An improved virtual tape storage device executes tapemark relative commands by examining metadata describing virtual tape volumes. The metadata includes information identifying groups of blocks in the virtual volume and whether a particular group of blocks includes a tapemark.
    Type: Grant
    Filed: July 15, 1998
    Date of Patent: April 11, 2000
    Assignee: Sutmyn Storage Corporation
    Inventors: Neville Yates, Jeffrey Miller