Invention Grant
US08693133B1 Systems and methods for improving sequential data rate performance using sorted data zones for butterfly format
有权
用于使用蝴蝶格式的排序数据区来提高顺序数据速率性能的系统和方法
- Patent Title: Systems and methods for improving sequential data rate performance using sorted data zones for butterfly format
- Patent Title (中): 用于使用蝴蝶格式的排序数据区来提高顺序数据速率性能的系统和方法
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Application No.: US13766470Application Date: 2013-02-13
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Publication No.: US08693133B1Publication Date: 2014-04-08
- Inventor: Joe C. Lee , Nicholas M. Warner
- Applicant: Western Digital Technologies, Inc.
- Applicant Address: US CA Irvine
- Assignee: Western Digital Technologies, Inc.
- Current Assignee: Western Digital Technologies, Inc.
- Current Assignee Address: US CA Irvine
- Main IPC: G11B21/02
- IPC: G11B21/02

Abstract:
A multi-head disk drive is disclosed comprising a plurality of disk surfaces, and a head assembly comprising a plurality of heads, wherein each disk surface comprises a plurality of data zones, and each data zone having a data transfer rate different from the other zones of the respective disk surface. A controller is operable to sequentially write a sequence of data blocks to the plurality of disk surfaces in accordance with a list of head-zone combinations, each head-zone combination corresponding to one of the heads and one of the data zones of the respective disk surface. The head-zone combinations in the list are ordered from highest data transfer rate to lowest data transfer rate, and each disk surface comprises a pivot point defining a direction of writing data in the data zones from one of an outer diameter toward a middle diameter and an inner diameter toward the middle diameter.
Information query