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This article introduces the relevant knowledge of "what is the meaning of zoning in linux". In the operation of actual cases, many people will encounter such a dilemma, so let the editor lead you to learn how to deal with these situations. I hope you can read it carefully and be able to achieve something!

In linux, partitioning is to divide a piece of space into multiple blocks, which means that block devices (such as hard drives) are divided into several areas according to their physical addresses as "sub" devices that can be managed independently. There are two common forms of linux partitioning: MBR partition table and GPT partition table.

The operating environment of this tutorial: linux5.9.8 system, Dell G3 computer.

Files are OS abstractions of hardware and all resources, not just disks.

A partition is to divide a piece of space into multiple pieces, and the file system is what is placed in the partition (or other space).

Partition is to divide a block device (such as a hard disk) into several areas according to its physical address as "sub" devices that can be managed independently. The partition only divides the address space of the block device, which is just a static partition. There is no more effect.

Zoning mode

Two common forms of zoning

MBR partition table: supports up to 2.1T hard drives, up to 4 partitions, 32-bit and 64-bit systems

GPT partition table (globally uniquely marked partition table): supports 9.4ZB (1ZB=1024PB, 1PB=1024EB, 1EB=1024TB), theoretically supports no limit on the number of partitions (but windows limits 128primary partitions), and only supports 64-bit systems.

Although GPT is a relatively new partitioning mechanism, which solves many shortcomings of MBR, MBR partitioning is the most commonly used at present. MBR has up to 4 partitions, and there are three partition types:

Primary partition

Extended partition

There is at most one.

The maximum number of extended partitions + primary partitions is 4

Cannot write data, cannot be formatted, can only be used to contain logical partitions

Logical partition

Included in an extended partition, there can be multiple

An extended partition must contain at least one logical partition

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