Michael J Zeis, Age 624729 Ewing Ave S, Minneapolis, MN 55410

8301772, Oct 30, 2012

Mar 27, 2007

11/728617

Michael Zeis - Minneapolis MN, US
Thomas Hartnett - Saint Paul MN, US
Adonijah Park - Forest Lake MN, US

Symantec Corporation - Mountain View CA

G06F 15/16

709226, 709222, 709224

Method and apparatus for allocating resources among backup tasks in a data backup system is described. One aspect of the invention relates to managing backup tasks in a computer network. An estimated resource utilization is established for each of the backup tasks based on a set of backup statistics. A resource reservation is allocated for each of the backup tasks based on the estimated resource utilization thereof. The resource reservation of each of the backup tasks is dynamically changed during performance thereof.

8315985, Nov 20, 2012

Dec 18, 2008

12/338563

James Ohr - Saint Paul MN, US
Michael Zeis - Minneapolis MN, US
Dean Elling - Burnsville MN, US
Stephan Kurt Gipp - Inver Grove Heights MN, US
William DesJardin - Roseville MN, US

Symantec Corporation - Mountain View CA

G06F 7/00

707664, 707692, 707753

A method and apparatus for optimizing a de-duplication rate for backup streams is described. In one embodiment, the method for optimizing data de-duplication using an extent mapping of a backup stream includes processing a backup stream to access an extent mapping associated with a plurality of data files, wherein the plurality of the data files are arranged within the backup stream and examining the extent mapping to identify at least one extent group within the backup stream, wherein the plurality of the data files are de-duplicated using at least one location of the at least one extent group.

8387054, Feb 26, 2013

Sep 28, 2007

11/864853

Michael Zeis - Minneapolis MN, US
Stephan Kurt Gipp - Inver Grove Heights MN, US
Claudia Rudolph - Medina MN, US

Symantec Corporation - Mountain View CA

G06F 9/46
G06F 15/173

718102, 718104, 718105, 709226

A method and apparatus for scheduling data movers is described. The method and apparatus comprise monitoring utilization of a resource used by a data mover to process a data flow, determining rank information based on the utilization of the resource and scheduling a task according to the rank information.

8572055, Oct 29, 2013

Jun 30, 2008

12/164284

Weibao Wu - Vadnais Heights MN, US
Michael John Zeis - Minneapolis MN, US

Symantec Operating Corporation - Mountain View CA

G06F 7/00
G06F 17/00

707697, 707698, 711216

A method, system and apparatus for efficient storage of small files in a segment-based deduplication scheme by allocating multiple small files to a single data segment is provided. A mechanism for distinguishing between large files (e. g. , files that are on the order of the size of a segment or larger) and smaller files, and starting a new segment at the beginning of a large file is also provided. A file attribute-based system for determining an identity of a small file at which to begin a new segment and then allocating subsequent small files to that segment and contiguous segments until a next small file having an appropriate attribute subsequently is encountered to begin a new segment is further provided. In one aspect of the present invention a filename hash is used for file attribute analysis to determine when a new segment should begin. Using such a mechanism, multiple small files can be allocated to a data segment and at the same time continue to provide for efficient storage of large files within separate data segments.

8074043, Dec 6, 2011

Jan 30, 2009

12/363207

Michael John Zeis - Minneapolis MN, US

Symantec Corporation - Mountain View CA

G06F 12/00

711171, 711162, 711E12002

Detection and proper deduplication of a re-started data stream in a segmentation analysis-based deduplication system are provided by retaining information about a previous data stream and using that information when performing segmentation of the re-started data stream. Information such as a segment size associated with a last data object received in the previous data stream and a record of how much data was present in the last segment associated with the previous data stream is retained. The retained segment size information is used to set a first data object segment size of the re-started data stream, and the size of last segment information is used to determine how much information should be put in the first segment associated with the re-started data stream in order to maintain proper alignment of the remainder of the segments for the first data object in the re-started data stream for deduplication.