Method for partitioning memory mass storage device

a mass storage device and memory technology, applied in the field of mass storage devices, can solve the problems of large weight of portable computer devices, inability to withstand physical shock, and high power consumption

Inactive Publication Date: 2005-08-11
KU MAO YUAN +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although hard disk drives are widely used in current computer system, there are still a variety of deficiencies regarding such rotating, magnetic mass storage devices, like an inherent latency during accessing the hard disk drives, high power consumption, being unable to withstand the physical shock, and having a large weight for portable computer devices.
If the first block is defective or infected by the computer virus, all the logical drives indicated by the partition information may not be detected by the host.
It is a risk for a drive partitioned into multiple logical drives by the host.
Furthermore, because the host can easily free access all the data, some important files, like system files, may be deleted by careless end users.
It is another risk or inconvenience.
Thereby, it reduces the possibility of partition information defect or computer virus infection.

Method used

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  • Method for partitioning memory mass storage device
  • Method for partitioning memory mass storage device
  • Method for partitioning memory mass storage device

Examples

Experimental program
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Embodiment Construction

[0020] A memory storage device generally comprises two portions; one is the controller and the other is the memory module. As shown in FIG. 1, the architecture of a memory storage device 106 consists of a controller 102, and a memory module 104. The controller 102 is coupled to host end 100 by host interface 108 and coupled to the memory module 104 by memory interface 110. The task of the controller 102 is to communicate with host end 100 and manage the memory module 104. The memory module 104 includes at least one memory chip, like flash memory, PROM, ROM, or EEPROM for storing data therein.

Logical to Physical Mapping

[0021] As shown in FIG. 2, a memory storage device is configured as a drive 204 by the host. From the host point of view, such a drive 204 includes a plurality of logical blocks, each of which can be addressed by the host; namely, the host can access all the logical space 200 including logical block 0, logical block 1, and logical block M-1. A memory chip generally i...

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PUM

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Abstract

A method for partitioning a memory mass storage device is disclosed. The partition task is performed by the controller within the memory mass storage device. Firstly, the controller partitions the logical space of the memory storage device into multiple areas, each area belonging to a particular drive. Secondly, the controller partitions the logical space of the memory storage device into a public area and a security area, both areas belonging to the same drive. Finally, the controller partitions the logical space of the memory storage device into multiple areas, which include public areas and security areas and belong to multiple drives.

Description

FIELD OF THE INVENTION [0001] The present invention relates to mass storage device, and particularly to a method for partitioning a memory mass storage device. BACKGROUND OF THE INVENTION [0002] Although hard disk drives are widely used in current computer system, there are still a variety of deficiencies regarding such rotating, magnetic mass storage devices, like an inherent latency during accessing the hard disk drives, high power consumption, being unable to withstand the physical shock, and having a large weight for portable computer devices. [0003] A non-volatile memory mass storage device, like a flash memory disk drive, is a nice choice for replacing a hard disk. Each memory mass storage device always comprises two portions; one is a controller part, and the other is a memory module. The semiconductor technology allows such a memory storage device to withstand many of the kinds of physical shock and reduce power consumption or weight. These flash memory storage devices are a...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): G06F3/06G06F12/14G06F21/00
CPCG06F3/0601G06F12/1466G06F2003/0697G06F2003/0694G06F21/80G06F3/0664G06F3/06
Inventor KU, MAO-YUANCHEN, YNG-TSANG
Owner KU MAO YUAN
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