Disk drive array with efficient background rebuilding
Patent 5313626 Issued on May 17, 1994. Estimated Expiration Date: 
December 17, 2011. Estimated 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.
December 17, 2011. Estimated 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.Patent ReferencesProcess and apparatus for saving and restoring critical files on the disk memory of an electrostatographic reproduction machine Data redundancy and recovery protection On-line reconstruction of a failed redundant array system Data correcting applicable to redundant arrays of independent disks On-line restoration of redundancy information in a redundant array system Patent #: 5235601 InventorsApplicationNo. 808841 filed on 12/17/1991US Classes:714/5Of memory or peripheral subsystemExaminersPrimary: Chun, Debra A.Attorney, Agent or FirmInternational ClassG06F 011/22AbstractA disk drive array with a controller which provides: dynamic remapping for grown defects in the disk drives, multi-thread request processing with a variable number of forkings, defect tracking with both logical and physical lists, guarded writes of less than a full stripe optimized by selectably using the redundancy to limit the number of sectors involved, association of multiple operations with a single disk request in order to facilitate error handling, use of an access hiatus as indication of further opportunity to rebuild data in background, and scatter/scatter (bidirectional scatter/gather) operations. | |
