Method, system, program, and data structures for mapping logical blocks to physical blocks
January 18, 2020. 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 ReferencesData processing method to create virtual disks from non-contiguous groups of logically contiguous addressable blocks of direct access storage device Deleted data file space release system for a dynamically mapped virtual data storage subsystem Redundant array of disks with improved storage and recovery speed System for representing data object in concatenated multiple virtual address spaces with combined requests for segment mapping Disk emulation for a non-volatile semiconductor memory utilizing a mapping table Paddle board interface for concurrent seeks on multiple disk drives of a computer Apparatus for forming logical disk management data having disk data stripe width set in order to equalize response time based on performance Logical volume manager and method having enhanced update capability with dynamic allocation of storage and minimal storage of metadata information Patent #: 5897661 InventorsApplicationNo. 09484574 filed on 01/18/2000US Classes:711/206, Translation tables (e.g., segment and page table or map)711/220, Combining two or more values to create address711/114, Arrayed (e.g., RAIDs)711/1, ADDRESSING COMBINED WITH SPECIFIC MEMORY CONFIGURATION OR SYSTEM711/4, Dynamic-type storage device (e.g., disk, tape, drum)711/209, Including plural logical address spaces, pages, segments, blocks711/115, Detachable memory710/21, Concurrent data transferring711/170Memory configuringExaminersPrimary: Anderson, Matthew D.Attorney, Agent or FirmForeign Patent References
International ClassG06F 1210AbstractDisclosed is a method, system, program, and data structure for a storage controller to map logical blocks to physical storage blocks. The storage controller is in communication with at least one host system that views a logical storage space. The storage controller defines the logical storage space as a sequence of logical chunks, wherein each logical chunk comprises a plurality of logical blocks in the logical storage space. The storage controller further defines a physical storage space as a sequence of physical chunks, wherein each physical chunk comprises a plurality of physical blocks in the physical storage system. The storage controller associates each logical chunk in the sequence of logical chunks defining the logical storage space with one physical chunk in the physical storage system. Further, the contiguous logical chunks are capable of being associated with non-contiguous physical chunks.Other References
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