Patents by Inventor Hardy Doelfel

Hardy Doelfel 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).

  • Load balancing of disk drives
    Patent number: 7363451
    Abstract: System and methods are disclosed for load balancing Input/Output (IO) commands to be executed by one or more disk drives from an array of disk drives. Systems and methods disclosed herein use one or more properties, such as disk drive RPM, disk drive cache, command queue lengths, real-time drive data, and head position to provide load balancing of Input/Output commands.
    Type: Grant
    Filed: October 11, 2005
    Date of Patent: April 22, 2008
    Assignee: LSI Logic Corporation
    Inventors: Neela Syam Kolli, Ajitabh Prakash Saxena, Hardy Doelfel
  • Load balancing of disk drives
    Publication number: 20070083703
    Abstract: System and methods are disclosed for load balancing Input/Output (IO) commands to be executed by one or more disk drives from an array of disk drives. Systems and methods disclosed herein use one or more properties, such as disk drive RPM, disk drive cache, command queue lengths, real-time drive data, and head position to provide load balancing of Input/Output commands.
    Type: Application
    Filed: October 11, 2005
    Publication date: April 12, 2007
    Inventors: Neela Kolli, Ajitabh Saxena, Hardy Doelfel
  • Methods and structure for optimizing disk space utilization
    Patent number: 7146463
    Abstract: Methods and associated structure to improve disk capacity utilization in the context of size coercion and COD space reservation techniques applied in a storage system. One aspect hereof provides that the size coercion computations to reduce (round down) the capacity of one or more disk drives in a storage system are performed prior to reservation of disk space for use in configuration-on-disk (COD) techniques. Performing coercion computations and configuration prior to COD space reservation prevents the COD reservation processing from causing un-necessary waste of physical capacity of the coerced disk drives.
    Type: Grant
    Filed: June 15, 2004
    Date of Patent: December 5, 2006
    Assignee: LSI Logic Corporation
    Inventors: Atul Mukker, Anuj Kumar Jain, Hardy Doelfel
  • Methods and structure for optimizing disk space utilization
    Publication number: 20050278484
    Abstract: Methods and associated structure to improve disk capacity utilization in the context of size coercion and COD space reservation techniques applied in a storage system. One aspect hereof provides that the size coercion computations to reduce (round down) the capacity of one or more disk drives in a storage system are performed prior to reservation of disk space for use in configuration-on-disk (COD) techniques. Performing coercion computations and configuration prior to COD space reservation prevents the COD reservation processing from causing un-necessary waste of physical capacity of the coerced disk drives.
    Type: Application
    Filed: June 15, 2004
    Publication date: December 15, 2005
    Inventors: Atul Mukker, Anuj Jain, Hardy Doelfel