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US Patent 5632012 - Disk scrubbing system
US Patent Issued on May 20, 1997
Estimated Patent Expiration Date:
March 6, 2016Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
Estimated Patent Expiration Date:
March 6, 2016Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.AbstractOne or more background processes that references data storage volumes and cylinders that are to be scrubbed to ensure the integrity of the data stored thereon. A priority scrubbing process is also available to note data storage volumes that have recently had data written thereon by the host processor and which require a more timely review of the data than less frequently used volumes. | InventorsAssigneeApplicationNo. 611501 filed on 03/06/1996US Classes:714/6Redundant stored data accessed (e.g., duplicated data, error correction coded data, or other parity-type data)ExaminersPrimary: Beausoliel, Robert W. Jr.Assistant: Elmore, Stephen C. Attorney, Agent or FirmUS Patent References4964129, Memory controller with error loggingIssued on: 10/16/1990 Inventor: Bowden, III, et al.4964130, System for determining status of errors in a memory subsystem Issued on: 10/16/1990 Inventor: Bowden, III, et al.5077737, Method and apparatus for storing digital data in off-specification dynamic random access memory devices Issued on: 12/31/1991 Inventor: Leger, et al.5088081, Method and apparatus for improved disk access Issued on: 02/11/1992 Inventor: Farr5146571, Remapping defects in a storage system through the use of a tree structure Issued on: 09/08/1992 Inventor: Logan5148432, Arrayed disk drive system and method Issued on: 09/15/1992 Inventor: Gordon, et al.5155835, Multilevel, hierarchical, dynamically mapped data storage subsystem Issued on: 10/13/1992 Inventor: Belsan5210866, Incremental disk backup system for a dynamically mapped data storage subsystem Issued on: 05/11/1993 Inventor: Milligan, et al.5258984, Method and means for distributed sparing in DASD arrays Issued on: 11/02/1993 Inventor: Menon, et al.5263032, Computer system operation with corrected read data function Issued on: 11/16/1993 Inventor: Porter, et al.5267242, Method and apparatus for substituting spare memory chip for malfunctioning memory chip with scrubbing Issued on: 11/30/1993 Inventor: Lavallee, et al.5271018, Method and apparatus for media defect management and media addressing Issued on: 12/14/1993 Inventor: Chan5301297, Method and means for managing RAID 5 DASD arrays having RAID DASD arrays as logical devices thereof Issued on: 04/05/1994 Inventor: Menon, et al.5303244, Fault tolerant disk drive matrix Issued on: 04/12/1994 Inventor: Watson5313626, Disk drive array with efficient background rebuilding Issued on: 05/17/1994 Inventor: Jones, et al.5403639File server having snapshot application data groups Issued on: 04/04/1995 Inventor: Belsan, et al. International ClassG06F 011/10 |
