KR970049374A - Defect map fast search method of hard disk drive - Google Patents

Abstract

1. Technical field to which the invention described in the claims belongs

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hard disk drive, and more particularly, to a method capable of quickly searching for defects information detected on a fixed phase using a look-up table.

2. Technical problem that the invention tries to solve

The present invention provides a method for rapidly searching a defect map at every data read and write operation of a hard disk drive.

3. Summary of the solution of the invention

A disc table divided into a plurality of zones, a defect table in which the defect sector information on the disc media detected in the process is recorded in a specific area on the disc media, and a search for each offset recorded based on the defect table. A method for fastly scanning a defect map of a hard disk drive having a table, the method comprising: calculating a zone to which an address of the received target data sector belongs in response to a data read or write command received from a host; Acquiring the offset of the calculated zone from the defect table through the table; increasing the target data sector address by one sector until the target data sector address is smaller than the address on the defect table; Searching Is less than Jung, the search result object data sector address is on the address table dipek to the data received in the corresponding object data sector address characterized constituted by any process that leads or light.

4. Important uses of the invention

Can be used to search for a defect map of a disk drive using disk media.

Description

How to Defect Map Fast Scan of Hard Disk Drives

Since this is an open matter, no full text was included.

1 is a physical layout diagram of a disk media according to an embodiment of the present invention;

FIG. 2 is a schematic diagram of a data sector map of a specific zone in FIG. 1;

3 is a diagram illustrating a defect setting for each zone according to the present invention, and a control flowchart for searching the same.

Claims (4)

A disc table divided into a plurality of zones, a defect table in which the defect sector information on the disc media detected in the process is recorded in a specific area on the disc media, and a search for each offset recorded based on the defect table. A method for fastly scanning a defect map of a hard disk drive having a table, the method comprising: calculating a zone to which an address of the received target data sector belongs in response to a data read or write command received from a host; Acquiring the offset of the calculated zone from the defect table through the table; increasing the target data sector address by one sector until the target data sector address is smaller than the address on the defect table; Searching Jung, the search result object data sector address is dipek smaller than the address within the table, the object data dipek sectors of the hard disk drive to the data received at the address constituted by any process characterized by the leading or light map the high-speed search method. 2. The method of claim 1, wherein each zone partitioned on the disk media is provided with unallocated spare sectors. 3. The method of claim 2, wherein the information of the defect sector is composed of cylinder, head, and sector address information of the defect sector detected in the fixed phase and recorded on the defect table. 4. The method of claim 3, wherein the specific area represents a maintenance area on the disc media. ※ Note: The disclosure is based on the original application.