Patents by Inventor Michael Steven Mackovitch

Michael Steven Mackovitch has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Methods and apparatuses for data protection
    Patent number: 8255371
    Abstract: Methods and apparatuses for data protection against corrupted write operations. In one embodiment, a technique of crash protection uses an atomically updated global transaction indicator to switch a set of data structures from one set of versions to another set. In one embodiment, the storage space for multiple versions of a data structure is allocated at the time the data structure is created on the storage device so that the multiple versions of the data structure can be kept close by. Between two consistent points, some data structures are modified to create new versions without changing the corresponding previous versions; and unmodified data structures are not copied. At a consistent point, the global transaction indicator is updated to indicate a set of consistent versions of the data structures, such as metadata of a file system.
    Type: Grant
    Filed: October 29, 2009
    Date of Patent: August 28, 2012
    Assignee: Apple Inc.
    Inventors: Dominic Benjamin Giampaolo, Michael Steven Mackovitch
  • Methods and apparatuses for data protection
    Patent number: 8239356
    Abstract: Methods and apparatuses for data protection against corrupted write operations. In one embodiment, a technique of crash protection uses an atomically updated global transaction indicator to switch a set of data structures from one set of versions to another set. In one embodiment, the storage space for multiple versions of a data structure is allocated at the time the data structure is created on the storage device so that the multiple versions of the data structure can be kept close by. Between two consistent points, some data structures are modified to create new versions without changing the corresponding previous versions; and unmodified data structures are not copied. At a consistent point, the global transaction indicator is updated to indicate a set of consistent versions of the data structures, such as metadata of a file system.
    Type: Grant
    Filed: October 29, 2009
    Date of Patent: August 7, 2012
    Assignee: Apple Inc.
    Inventors: Dominic Benjamin Giampaolo, Michael Steven Mackovitch
  • Methods and Apparatuses for Data Protection
    Publication number: 20100114847
    Abstract: Methods and apparatuses for data protection against corrupted write operations. In one embodiment, a technique of crash protection uses an atomically updated global transaction indicator to switch a set of data structures from one set of versions to another set. In one embodiment, the storage space for multiple versions of a data structure is allocated at the time the data structure is created on the storage device so that the multiple versions of the data structure can be kept close by. Between two consistent points, some data structures are modified to create new versions without changing the corresponding previous versions; and unmodified data structures are not copied. At a consistent point, the global transaction indicator is updated to indicate a set of consistent versions of the data structures, such as metadata of a file system.
    Type: Application
    Filed: October 29, 2009
    Publication date: May 6, 2010
    Inventors: Dominic Benjamin Giampaolo, Michael Steven Mackovitch
  • Methods and Apparatuses for Data Protection
    Publication number: 20100049751
    Abstract: Methods and apparatuses for data protection against corrupted write operations. In one embodiment, a technique of crash protection uses an atomically updated global transaction indicator to switch a set of data structures from one set of versions to another set. In one embodiment, the storage space for multiple versions of a data structure is allocated at the time the data structure is created on the storage device so that the multiple versions of the data structure can be kept close by. Between two consistent points, some data structures are modified to create new versions without changing the corresponding previous versions; and unmodified data structures are not copied. At a consistent point, the global transaction indicator is updated to indicate a set of consistent versions of the data structures, such as metadata of a file system.
    Type: Application
    Filed: October 29, 2009
    Publication date: February 25, 2010
    Inventors: Dominic Benjamin Giampaolo, Michael Steven Mackovitch
  • Methods and apparatuses for data protection
    Patent number: 7613743
    Abstract: Methods and apparatuses for data protection against corrupted write operations. In one embodiment, a technique of crash protection uses an atomically updated global transaction indicator to switch a set of data structures from one set of versions to another set. In one embodiment, the storage space for multiple versions of a data structure is allocated at the time the data structure is created on the storage device so that the multiple versions of the data structure can be kept close by. Between two consistent points, some data structures are modified to create new versions without changing the corresponding previous versions; and unmodified data structures are not copied. At a consistent point, the global transaction indicator is updated to indicate a set of consistent versions of the data structures, such as metadata of a file system.
    Type: Grant
    Filed: June 10, 2005
    Date of Patent: November 3, 2009
    Assignee: Apple Inc.
    Inventors: Dominic Benjamin Giampaolo, Michael Steven Mackovitch