Invention Grant
- Patent Title: Disk drive to coalesce unaligned writes in write operations
- Patent Title (中): 磁盘驱动器在写入操作中合并未对齐的写入
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Application No.: US12968587Application Date: 2010-12-15
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Publication No.: US08832366B1Publication Date: 2014-09-09
- Inventor: Sang Huynh
- Applicant: Sang Huynh
- Applicant Address: US CA Irvine
- Assignee: Western Digital Technologies, Inc.
- Current Assignee: Western Digital Technologies, Inc.
- Current Assignee Address: US CA Irvine
- Main IPC: G06F12/00
- IPC: G06F12/00

Abstract:
A disk drive to implement write operations requested by a host is disclosed. The disk drive comprises: a disk having a plurality of tracks, wherein each track includes a plurality of physical data sectors; a head actuated over the disk; and control circuitry. The control circuitry is operable to determine if a write request from the host includes logic data that includes unaligned writes, and if so: coalesces nearby writes; performs a group read operation to create a plurality of groups; and performs a write operation to write the logic data to the physical data sectors based upon the plurality of groups, wherein the physical data sectors are written to the disk during a single revolution of the disk.
Information query