Patents by Inventor Peter Vajgel

Peter Vajgel 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).

  • Patent number: 7293133
    Abstract: System and method for performing operations in a multi-class file system without requiring split mirrors. For one or more storage classes in the multi-class file system, operations that require stable copies of the storage classes may be performed without using split mirrors. In one embodiment, read-only data may be assigned and/or migrated to lower storage classes, and operations may be performed on the read-only storage classes without using split mirrors. In one embodiment, to perform an operation without using a split mirror, a write lock of a storage class may be examined to determine if the write-locked storage class has been written to during the operation on the storage class and, if so, the operation may be retried for the storage class. In one embodiment, the file system software may be blocked from enabling a storage class for writing for the duration of the operation on the storage class.
    Type: Grant
    Filed: December 31, 2003
    Date of Patent: November 6, 2007
    Assignee: Veritas Operating Corporation
    Inventors: John Colgrove, Par Botes, Michael Timpanaro, Charles H. Silvers, Peter Vajgel
  • Patent number: 7228299
    Abstract: A method for performing file lookups based on tags indicative of file characteristics may involve: a file system storing an association between a tag and a file, where the tag is indicative of a characteristic of the file; the file system storing an additional association between the tag and an additional file that also has the characteristic; the file system searching for files having the tag; and in response to searching, the file system returning identifiers of both files associated with the tag. The returned identifiers may include the files' pathnames or inode identifiers of the files' inodes.
    Type: Grant
    Filed: May 2, 2003
    Date of Patent: June 5, 2007
    Assignee: VERITAS Operating Corporation
    Inventors: Craig K. Harmer, Sara Abraham, Peter Vajgel
  • Patent number: 7225211
    Abstract: System and method for implementing a file system across different storage classes in a storage system. Embodiments may define multiple classes of storage and automatically and transparently migrate data in the storage classes within the same file system to meet the usage needs of the business. Embodiments may transparently adapt the cost of storage to the usage patterns of data on the storage, thereby reducing the amount that customers need to spend for their storage. In embodiments, storage devices may be classified into different classes of storage to implement a multi-class file system. Embodiments may provide a multi-class storage mechanism for managing and implementing user-defined policies for assigning and migrating data within the multi-class file system. The multi-class storage mechanism may determine where to initially place data, and may transparently migrate data to other storage classes according to the policies. Migrated data remains online within the file system.
    Type: Grant
    Filed: December 31, 2003
    Date of Patent: May 29, 2007
    Assignee: Veritas Operating Corporation
    Inventors: John Colgrove, Par Botes, Michael Timpanaro, Charles H. Silvers, Peter Vajgel
  • Patent number: 7103740
    Abstract: System and method for performing backups of a multi-class file system are described. In one embodiment, more recently modified data may be assigned and/or migrated to higher storage classes and less recently modified data may be migrated at time intervals to lower storage classes in the multi-class file system. Backups of each of the storage classes may be performed at time intervals. In one embodiment, the backups may be image-based backups of the storage devices in the storage classes. In one embodiment, the lower storage classes may include one or more read-only storage classes including less-recently modified data that are backed up less frequently than higher storage classes including more-recently modified data. In one embodiment, files migrated to lower storage class(es) may be compressed.
    Type: Grant
    Filed: December 31, 2003
    Date of Patent: September 5, 2006
    Assignee: VERITAS Operating Corporation
    Inventors: John Colgrove, Par Botes, Michael Timpanaro, Charles H. Silvers, Peter Vajgel