The difference between high level and low level formatting

Hello! With regard to your question, I would like to make the following:

1. Advanced formatting: Ordinary right-click hard disk formatting and format commands belong to advanced formatting. Advanced formatting is to erase all data from the target partition and repair the corresponding file system. But the data cleared by Advanced Format can be recovered.

2. Low-level formatting: Low-level formatting is to initialize the data of the hard disk through the professional software provided by the manufacturer, restore all the hard disk partition tables, and the cleared data cannot be recovered. And this formatting is based on the hardware formatting (data initialization), which has a certain damage to the hard disk.

And it is the entire format of the hard drive. Advanced formatting, on the other hand, is specific to a partition (e.g., "e:.").

There are two essential differences:

1. High-level formatting can be done by the operating system, while low-level formatting must be done by professional software.

2. Low-level formatting is initial for global data, while high-level formatting is only for a certain partition.

Roughly so.

I'll find out if I try them separately...

Ordinary right-click hard disk formatting Choose not to choose fast, they are all advanced formatting, the difference between the two is whether the sector is checked during the formatting process!

Quick form is equivalent to format q command, do not check whether there are bad sectors in the sector, usually do not use fast form after the first partition, so that bad sectors can be found!

Format is advanced!

Low-level formatting is typically done with specialized software tools, such as IBM's HD!Usually the hard disk will be used when there is a problem, which is used to mark bad sectors and save the hard disk!

2.Advanced format is usually used for a partition, and low level format is used for a hard drive!

The formatting we usually do belongs to high-level formatting, and low-level formatting is generally done by the hard disk manufacturer when the hard disk leaves the factory.

1. The reference is different.

Low-level formatting: Used to refer to the division of a disk into cylinders, tracks, and sectors. Advanced Formatting:

Also known as logical formatting, it refers to writing specific data to a specific area of the disk according to the file system selected by the user (such as FAT12, FAT16, FAT32, NTFS, EXT2, EXT3, etc.).

2. The characteristics are different.

Low-level formatting: Low-level formatting of floppy disks is usually supported by the system. Normally, the formatting operation of a floppy disk consists of two parts: a low-level formatting operation and a high-level formatting operation.

Advanced Formatting: An operation that achieves the ability to initialize a disk or disk partition, or to erase all files on the original disk or disk partition.

3. The role is different.

Low-level formatting: The operation of creating a sector of a hard disk to make the hard disk have storage capacity. Advanced Formatting:

This includes rewriting the corresponding area of the partition table in the master boot record, and setting aside a piece of disk space in the partition for file management, such as file allocation tables and directory tables, according to the file system selected by the user, so that the user can use the partition to manage files.

Low-level formatting is to divide the blank disk into cylinders and tracks, and then divide the tracks into several sectors, and each sector is divided into identification part ID, interval gap and data area. Low-level formatting is a physical-level formatting, which is mainly used to divide the cylinder of the hard disk, establish the number of sectors, and select the sector spacing ratio. (will affect the life of the hard drive).

Advanced formatting is to erase the data on the hard disk, generate boot area information, initialize the FAT table, mark logical bad sectors, etc. Advanced format is mainly to format the tracks of each partition of the hard disk and divide the tracks logically.

To put it simply, high-level formatting is the formatting that is related to the operating system, and low-level formatting is the formatting that is not related to the operating system.

The landlord lists all high-level formatting. (format has a variety of commands to format for low-level formatting functions).

The so-called "low grid" refers to a bare disk to divide the track and sector, mark the address information, set the cross factor, repair the logical bad sector and other low-level operations, "low grid" needs to use special software with the hard disk, because the low grid will likely damage the platter magnetic medium, there is generally no need to carry out this operation on the hard disk. Advanced formatting, on the other hand, will do the work of clearing the data on the hard disk, generating boot area information, initializing the FAT table, and marking logical bad sectors. Advanced formatting of a hard drive usually uses the operating system's included format command.

Regarding the pros and cons of low hard drives, all parties have different opinions and have been inconclusive. In the past, it was okay to have a low cell when the hard disk capacity was not large, but at that time, most motherboards provided a program with a low cell in the BIOS. With the development of hard disk technology and the increase of capacity, manufacturers generally do not recommend low levels of hard disks, so as not to change the parameters such as the staggering factor of hard disks and affect the performance and life of hard disks.

However, the low grid of the hard disk is indeed useful for solving some problems (such as malignant viruses and logical bad sectors), if it is really necessary to carry out the low level, you should try to use the manufacturer's special low level program. In addition, the process of "low grid" is very slow, if there is an accident such as power failure and death halfway, it will cause very serious consequences, and because the "low grid" should make the low-level physical characteristics of the hard disk change to a certain extent, it must have an impact on the life of the hard disk, so it is generally easy not to carry out "low grid" operation on the hard disk.

If it is helpful to you, please remember to accept it as a satisfactory answer, thank you! Have a great day!

vaela

1. Ordinary formatting of hard disks will not affect the life of hard disks. Formatting is divided into high-level and low-level formatting. Advanced Format is just to erase the data on the hard disk, generate boot information, initialize the FAT table, mark logical bad sectors, etc.

The low-level formatting is to divide the hard disk into cylinders and tracks, and then divide the tracks into several sectors, and each sector is divided into identification part ID, spacer, gap and data area. Low-level formatting is a job that precedes high-level formatting, and each hard drive is low-level formatted before it leaves the factory. Low-level formatting is a lossy operation that has a negative impact on the life of the hard drive.

The formatting under Windows that we usually use (including the formatting used under DOS) is actually advanced formatting.

Formatting a hard disk in Windows works the same as formatting a floppy disk. The difference with formatting a floppy disk is that the full format we do on a floppy disk is a low-level formatting.

Second, for the newly purchased hard disk in recent years, the formatting operation, including high and low grid, will not affect its life.

Compared with the past, the physical structure of the hard disk has undergone some changes, which directly affects the changes in the implementation of the corresponding hard disk instructions, the most important of which is the change of the formatting instructions caused by the change of the hard disk seeking mode. At present, the user can access the converted logical sector, not the actual physical sector corresponding to the physical head. As a result, the user is virtually unable to operate the hard drive in the physical sense.

The so-called low-level formatting now is nothing more than zeroing and redirecting bad sectors, and it does not regenerate the hard drive, nor does it have a physical repair function.

For commonly used advanced formatting, "Quick Format" simply resets the hard disk partition table, and even "full formatting" simply resets all sectors in addition to resetting the hard disk partition table. It can be seen that the formatting instructions run by the user are not fundamentally different from other ordinary read and write operations, and in the whole life of the hard disk, the number of such reads and writes can only be measured in astronomical numbers, and the number of formatting or ghost operations is completely negligible. According to the current hard drive manufacturing technology, it is very rare for a hard drive to be damaged simply because of read and write in ordinary applications, and most hard drive failures are related to external physical collisions, sudden power outages during read and write, and circuit damage.

Therefore, the only thing to consider in formatting is to avoid the above situations.

Hard disks used to be like floppy disks, using stepper motors to control the position of the head and perform seek operations. As mentioned earlier, as the precision of head positioning continues to improve, the seek method and formatting instructions of hard disks have also changed greatly. However, in general, in terms of practical application, we can consider the principle to be the same.

Generally, we buy a hard disk, and the manufacturer has formatted it, we call it.

Low-level formatting.

However, a hard disk can not be used only after low-level formatting, which requires us to format it when we use this hard disk, which is what we usually call formatting, which is called.

Advanced Formatting:

Whereas. Quick formatting.

It's just one of the advanced formats.

No! These formats are all advanced formatting. Low-level formatting is done with a separate dedicated tool. Because hard disks (floppy disks do not have low-level formatting) are generally made at the factory, so there is no need for low-level formatting!

In short, we basically don't care about low formatting, and the general installation is or the future formatting is advanced formatting.

Low-level formatting: It is to divide the blank disk into noodles and tracks, and then divide the tracks into several sectors, and each sector is divided into identification part ID, interval gap and data area

Advanced formatting: refers to an operation that writes specific data to a specific area of the disk according to the file system selected by the user (such as FAT12, FAT16, FAT32, NTFS, ext2, ext3, etc.) to initialize the disk or disk partition and clear all files in the original disk or disk partition. Advanced formatting includes rewriting the corresponding area of the partition table in the master boot record, and setting aside a piece of disk space in the partition for file management, such as file allocation tables and table of contents, according to the file system selected by the user, so that the user can use the partition to manage files.

Low-level formatting is a feature that comes into Windows PE.