Patents by Inventor John G. Aschoff

John G. Aschoff 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).

  • Data storage system to optimize revenue realized under multiple service level agreements
    Patent number: 9172618
    Abstract: A data storage system comprising a Quality of Service server to optimize revenue realized under multiple service level agreements with a data storage client.
    Type: Grant
    Filed: December 23, 2013
    Date of Patent: October 27, 2015
    Assignee: International Business Machines Corporation
    Inventors: John G. Aschoff, David D. Chambliss, Bruce McNutt
  • Data Storage to Optimize Revenue Realized Under Multiple Service Level Agreements
    Publication number: 20140122685
    Abstract: A data storage system comprising a Quality of Service server to optimize revenue realized under multiple service level agreements with a data storage client.
    Type: Application
    Filed: December 23, 2013
    Publication date: May 1, 2014
    Applicant: International Business Machines Corporation
    Inventors: John G. Aschoff, David D. Chambliss, Bruce McNutt
  • Apparatus and method to optimize revenue realized under multiple service level agreements
    Patent number: 8631105
    Abstract: A method to optimize revenue realized under multiple service level agreements with multiple data storage clients is disclosed. The method provides an information storage and retrieval system. The method includes entering into (N) service level agreements to provide data storage services for (N) applications using the information storage and retrieval system, where each of the (N) service level agreements specifies an average maximum response time RTSLA. The method calculates for each value of (j), the value per unit throughput ?j for the (j)th application, and then determines for each value of (j) the optimum data flow rate x(j)OPT. The method estimates, for each value of (j), a maximum data flow rate X(j)MAX that the (j)th application can utilize, and determines, for each value of (j), if x(j)OPT equals X(j)MAX.
    Type: Grant
    Filed: August 27, 2004
    Date of Patent: January 14, 2014
    Assignee: International Business Machines Corporation
    Inventors: John G. Aschoff, David D. Chambliss, Bruce McNutt
  • Method and means for dynamic cache management by variable space and time binding and rebinding of cache extents to DASD cylinders
    Patent number: 5499354
    Abstract: Dynamic allocation of read cache space is allocated among bands of DASD cylinders rather than to data sets or processes as a function of a weighted average hit ratio to the counterpart cache space. Upon the hit ratio falling below a predetermined threshold, the bands are disabled for a defined interval as measured by cache accesses and then rebound to cache space again.
    Type: Grant
    Filed: May 19, 1993
    Date of Patent: March 12, 1996
    Assignee: International Business Machines Corporation
    Inventors: John G. Aschoff, Jeffrey A. Berger, David A. Burton, Bruce McNutt, Stanley C. Kurtz