Patents Assigned to Permabit, Inc., a Massachusetts corporation
  • History preservation in a computer storage system
    Publication number: 20040205112
    Abstract: A method by which a disk-based distributed data storage system is organized for protecting historical records of stored data entities. The method comprises recording distinct states of an entity, corresponding to different moments of time, as separate entity versions coexisting within the distributed data storage system, and assigning expiration times to the entity versions independently within each of a plurality of storage sites according to a shared set of rules, before which times deletion is prohibited.
    Type: Application
    Filed: January 7, 2004
    Publication date: October 14, 2004
    Applicant: Permabit, Inc., a Massachusetts corporation
    Inventor: Norman H. Margolus
  • History preservation in a computer storage system
    Publication number: 20040167902
    Abstract: A method by which a disk-based distributed data storage system is organized for protecting historical records of stored data entities. The method comprises recording distinct states of an entity, corresponding to different moments of time, as separate entity versions coexisting within the distributed data storage system, and assigning expiration times to the entity versions independently within each of a plurality of storage sites according to a shared set of rules, before which times deletion is prohibited.
    Type: Application
    Filed: January 7, 2004
    Publication date: August 26, 2004
    Applicant: Permabit, Inc., a Massachusetts corporation
    Inventor: Norman H. Margolus
  • History preservation in a computer storage system
    Publication number: 20040167903
    Abstract: A method by which a disk-based distributed data storage system is organized for protecting historical records of stored data entities. The method comprises recording distinct states of an entity, corresponding to different moments of time, as separate entity versions coexisting within the distributed data storage system, and assigning expiration times to the entity versions independently within each of a plurality of storage sites according to a shared set of rules, before which times deletion is prohibited.
    Type: Application
    Filed: January 7, 2004
    Publication date: August 26, 2004
    Applicant: Permabit, Inc., a Massachusetts corporation
    Inventors: Norman H. Margolus, Jered J. Floyd, George E. Homsy, Jeffrey M. Keller
  • History preservation in a computer storage system
    Publication number: 20040167939
    Abstract: A method by which a disk-based distributed data storage system is organized for protecting historical records of stored data entities. The method comprises recording distinct states of an entity, corresponding to different moments of time, as separate entity versions coexisting within the distributed data storage system, and assigning expiration times to the entity versions independently within each of a plurality of storage sites according to a shared set of rules, before which times deletion is prohibited.
    Type: Application
    Filed: January 7, 2004
    Publication date: August 26, 2004
    Applicant: Permabit, Inc., a Massachusetts corporation
    Inventors: Norman H. Margolus, Jered J. Floyd, George E. Homsy, Jeffrey M. Keller
  • History preservation in a computer storage system
    Publication number: 20040167940
    Abstract: A method by which a disk-based distributed data storage system is organized for protecting historical records of stored data entities. The method comprises recording distinct states of an entity, corresponding to different moments of time, as separate entity versions coexisting within the distributed data storage system, and assigning expiration times to the entity versions independently within each of a plurality of storage sites according to a shared set of rules, before which times deletion is prohibited.
    Type: Application
    Filed: January 7, 2004
    Publication date: August 26, 2004
    Applicant: Permabit, Inc., a Massachusetts corporation
    Inventors: Norman H. Margolus, Jered J. Floyd, George E. Homsy, Jeffrey M. Keller
  • History preservation in a computer storage system
    Publication number: 20040168058
    Abstract: A method by which a disk-based distributed data storage system is organized for protecting historical records of stored data entities. The method comprises recording distinct states of an entity, corresponding to different moments of time, as separate entity versions coexisting within the distributed data storage system, and assigning expiration times to the entity versions independently within each of a plurality of storage sites according to a shared set of rules, before which times deletion is prohibited.
    Type: Application
    Filed: January 7, 2004
    Publication date: August 26, 2004
    Applicant: Permabit, Inc., a Massachusetts corporation
    Inventor: Norman H. Margolus
  • History preservation in a computer storage system
    Publication number: 20040167938
    Abstract: A method by which a disk-based distributed data storage system is organized for protecting historical records of stored data entities. The method comprises recording distinct states of an entity, corresponding to different moments of time, as separate entity versions coexisting within the distributed data storage system, and assigning expiration times to the entity versions independently within each of a plurality of storage sites according to a shared set of rules, before which times deletion is prohibited.
    Type: Application
    Filed: January 7, 2004
    Publication date: August 26, 2004
    Applicant: Permabit, Inc., a Massachusetts corporation
    Inventors: Norman H. Margolus, Jered J. Floyd, George E. Homsy, Jeffrey M. Keller
  • History preservation in a computer storage system
    Publication number: 20040167901
    Abstract: A method by which a disk-based distributed data storage system is organized for protecting historical records of stored data entities. The method comprises recording distinct states of an entity, corresponding to different moments of time, as separate entity versions coexisting within the distributed data storage system, and assigning expiration times to the entity versions independently within each of a plurality of storage sites according to a shared a set of rules, before which times deletion is prohibited.
    Type: Application
    Filed: January 7, 2004
    Publication date: August 26, 2004
    Applicant: Permabit, Inc., a Massachusetts corporation
    Inventor: Norman H. Margolus
  • History preservation in a computer storage system
    Publication number: 20040167934
    Abstract: A method by which a disk-based distributed data storage system is organized for protecting historical records of stored data entities. The method comprises recording distinct states of an entity, corresponding to different moments of time, as separate entity versions coexisting within the distributed data storage system, and assigning expiration times to the entity versions independently within each of a plurality of storage sites according to a shared set of rules, before which times deletion is prohibited.
    Type: Application
    Filed: January 7, 2004
    Publication date: August 26, 2004
    Applicant: Permabit, Inc., a Massachusetts corporation
    Inventors: Norman H. Margolus, Jered J. Floyd, George E. Homsy, Jeffrey M. Keller
  • History preservation in a computer storage system
    Publication number: 20040167943
    Abstract: A method by which a disk-based distributed data storage system is organized for protecting historical records of stored data entities. The method comprises recording distinct states of an entity, corresponding to different moments of time, as separate entity versions coexisting within the distributed data storage system, and assigning expiration times to the entity versions independently within each of a plurality of storage sites according to a shared set of rules, before which times deletion is prohibited.
    Type: Application
    Filed: January 7, 2004
    Publication date: August 26, 2004
    Applicant: Permabit, Inc., a Massachusetts corporation
    Inventor: Norman H. Margolus
  • History preservation in a computer storage system
    Publication number: 20040168057
    Abstract: A method by which a disk-based distributed data storage system is organized for protecting historical records of stored data entities. The method comprises recording distinct states of an entity, corresponding to different moments of time, as separate entity versions coexisting within the distributed data storage system, and assigning expiration times to the entity versions independently within each of a plurality of storage sites according to a shared set of rules, before which times deletion is prohibited.
    Type: Application
    Filed: January 7, 2004
    Publication date: August 26, 2004
    Applicant: Permabit, Inc. a Massachusetts corporation
    Inventors: Norman H. Margolus, Jered J. Floyd, George E. Homsy, Jeffrey M. Keller