Invention Grant
US09268649B1 Disk drive with recent write streams list for data refresh determination
有权
磁盘驱动器与最近的写入流列表进行数据刷新确定
- Patent Title: Disk drive with recent write streams list for data refresh determination
- Patent Title (中): 磁盘驱动器与最近的写入流列表进行数据刷新确定
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Application No.: US13167246Application Date: 2011-06-23
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Publication No.: US09268649B1Publication Date: 2016-02-23
- Inventor: Robert Morelli Fallone , Edwin Scott Olds
- Applicant: Robert Morelli Fallone , Edwin Scott Olds
- Applicant Address: US CA Irvine
- Assignee: Western Digital Technologies, Inc.
- Current Assignee: Western Digital Technologies, Inc.
- Current Assignee Address: US CA Irvine
- Main IPC: G06F11/14
- IPC: G06F11/14 ; G11B15/68 ; G06F12/08 ; G11B17/22

Abstract:
A disk drive is disclosed comprising a disk comprising a plurality of refresh regions, each refresh region comprising a range of logical block addresses (LBAs). The disk drive further comprises a recent write streams list comprising one or more entries, each entry representing an LBA stream. The disk drive further comprises a head actuated radially over the disk to write data to and read data from the disk, and control circuitry coupled to the head, wherein the control circuitry is operable to execute a write command comprising one or more LBAs, determine whether the one or more LBAs are sequential to an entry in the recent write streams list, modify an entry in the recent write streams list when the one or more LBAs are sequential to the entry, and utilize the modified entry to determine whether to reset a refresh counter associated with a refresh region.
Information query