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Variable partition method for magnetic disc drive

A magnetic disk drive, variable technology, applied in the direction of recording/reproducing/deleting methods, disk-shaped carriers, different record carrier forms, etc., can solve the problems of loss, loss of information storage capacity, etc., and achieve the effect of increasing capacity

Inactive Publication Date: 2007-01-17
YITUO SCI & TECH CO LTD SHENZHEN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] It can be seen that in the above two technologies, some locations that can be used to store data will be lost, which will cause loss of information storage capacity

Method used

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  • Variable partition method for magnetic disc drive
  • Variable partition method for magnetic disc drive
  • Variable partition method for magnetic disc drive

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Experimental program
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Embodiment Construction

[0035] As mentioned above, the previous proposal has defined fixed storage areas during the design stage of the disk drive, and set corresponding preset read and write frequencies for these storage areas. Such as figure 1 As shown, the radii of zones Z1, Z2 and Z3 are relative to the center of the disk (such as point C). If the performance characteristics of an individual head are below the minimum bit error rate (such as image 3 ), then the disk will not have sufficient characteristic margin and will not meet the acceptable bit error rate requirements. In the embodiment of the present invention, the partitioning is performed based on the measurement results of the magnetic head characteristics, and the partitioning can achieve the required performance level of the drive and maintain the required capacity according to the combined number of magnetic disks and magnetic heads and the recording density of the disks.

[0036] If the recording density of the head-disk combinatio...

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Abstract

The method is applicable to magnetic storage system possessing surfaces of multiple magnetic disks. Based on read-write performance characteristic between each magnetic head and surface of relevant magnetic disk sheet, each storage areas are partitioned. Based on different performance characteristic of each magnetic head, each storage area is partitioned independently, or it is not based on performance characteristic of one anticipative magnetic head to partitions storage areas for all magnetic disks, thus it may not be at same straight line between borderline of storage area at one magnetic disk and borderline of storage area at another magnetic disk. This partitioning method improves available length of travel in magnetic disk used so as to raise storage density of magnetic disk.

Description

【Technical field】 [0001] The invention relates to a variable partitioning method of a disk drive, in particular to a variable partitioning method of a disk drive which can optimize the actual available stroke of each disk to increase the recording density of the disk. 【technical background】 [0002] A layer of magnetic material is attached to the surface of the disk in a common disk drive, and the circular track of the disk is used to record information. When a plurality of disks are used at the same time, these track surfaces having the same address form a cylindrical shape. For this physical structure, when the designer wants to increase the storage capacity of the disk, he can only increase the data storage capacity on a single track or increase the number of tracks. But designers of common disk drives have always used a fixed number of tracks (or cylinders) to maximize storage capacity. [0003] In the prior art, the surface of each disk is divided into two parts: a st...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F12/02G11B5/02G11B5/82
Inventor 布鲁斯·依莫布来恩·威尔逊内尔森
Owner YITUO SCI & TECH CO LTD SHENZHEN