What can you check using lv in linux?-Linux Operation and Maintenance-php.cn

Home

Operation and Maintenance

Linux Operation and Maintenance

What can you check using lv in linux?

尊渡假赌尊渡假赌尊渡假赌

Jun 15, 2023 am 09:48 AM

linux

Linux uses lv to view detailed information of LVM volume groups and logical volumes. The "lv" command is a tool for LVM under the Linux system. LVM is a disk management technology that can abstract multiple physical disks. It becomes a unified logical storage space, and volume groups, logical volumes, etc. are created on this logical storage space.

What can you check using lv in linux?

The operating system of this tutorial: Linux5.18.14 system, LVM version 1.0.5, Dell G3 computer.

The "lv" command is a tool of LVM (Logical Volume Manager) under Linux system, used to view the detailed information of LVM volume group (Logical Volume Group) and logical volume (Logical Volume).

LVM is a disk management technology that can abstract multiple physical disks into a unified logical storage space, and create volume groups, logical volumes, etc. on this logical storage space. Using LVM to manage logical volumes can dynamically change the volume group size and logical volume size, thus avoiding the capacity limitation problem caused by simply using traditional hard disk partitioning methods.

屏幕截图 2023-06-15 094800.png

Using the `lv display [LOGICAL_VOLUMN]` or `lvscan` command, you can view the existing logical volumes (lvm logical volumes) in LVM, which will include each logical volume. Details such as the volume's name, size, path, status, etc. At the same time, the `lv` command also provides some other options, which play a certain role in the LVM management process, such as:

`lvcreate`: used to create a new logical volume.
`lvextend`: used to extend the specified logical volume size.
`lvreduce`: used to reduce the size of the specified logical volume.
`lvremove`: used to delete the specified logical volume.

In short, the `lv` command is an important command in the LVM management tool. It can be used to view logical volume information, which facilitates users to understand the system storage situation and perform some management operations.

The above is the detailed content of What can you check using lv in linux?. For more information, please follow other related articles on the PHP Chinese website!

Statement

The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn

The Building Blocks of Linux: Key Components ExplainedApr 30, 2025 am 12:26 AM

The core components of the Linux system include the kernel, file system, and user space. 1. The kernel manages hardware resources and provides basic services. 2. The file system is responsible for data storage and organization. 3. Run user programs and services in the user space.

Using Maintenance Mode: Troubleshooting and Repairing LinuxApr 29, 2025 am 12:28 AM

Maintenance mode is a special operating level entered in Linux systems through single-user mode or rescue mode, and is used for system maintenance and repair. 1. Enter maintenance mode and use the command "sudosystemctlisolaterscue.target". 2. In maintenance mode, you can check and repair the file system and use the command "fsck/dev/sda1". 3. Advanced usage includes resetting the root user password, mounting the file system in read and write mode and editing the password file.

Linux Maintenance Mode: Understanding the PurposeApr 28, 2025 am 12:01 AM

Maintenance mode is used for system maintenance and repair, allowing administrators to work in a simplified environment. 1. System Repair: Repair corrupt file system and boot loader. 2. Password reset: reset the root user password. 3. Package management: Install, update or delete software packages. By modifying the GRUB configuration or entering maintenance mode with specific keys, you can safely exit after performing maintenance tasks.

Linux Operations: Networking and Network ConfigurationApr 27, 2025 am 12:09 AM

Linux network configuration can be completed through the following steps: 1. Configure the network interface, use the ip command to temporarily set or edit the configuration file persistence settings. 2. Set up a static IP, suitable for devices that require a fixed IP. 3. Manage the firewall and use the iptables or firewalld tools to control network traffic.

Maintenance Mode in Linux: A System Administrator's GuideApr 26, 2025 am 12:20 AM

Maintenance mode plays a key role in Linux system management, helping to repair, upgrade and configuration changes. 1. Enter maintenance mode. You can select it through the GRUB menu or use the command "sudosystemctlisolaterscue.target". 2. In maintenance mode, you can perform file system repair and system update operations. 3. Advanced usage includes tasks such as resetting the root password. 4. Common errors such as not being able to enter maintenance mode or mount the file system, can be fixed by checking the GRUB configuration and using the fsck command.

Maintenance Mode in Linux: When and Why to Use ItApr 25, 2025 am 12:15 AM

The timing and reasons for using Linux maintenance mode: 1) When the system starts up, 2) When performing major system updates or upgrades, 3) When performing file system maintenance. Maintenance mode provides a safe and controlled environment, ensuring operational safety and efficiency, reducing impact on users, and enhancing system security.

Linux: Essential Commands and OperationsApr 24, 2025 am 12:20 AM

Indispensable commands in Linux include: 1.ls: list directory contents; 2.cd: change working directory; 3.mkdir: create a new directory; 4.rm: delete file or directory; 5.cp: copy file or directory; 6.mv: move or rename file or directory. These commands help users manage files and systems efficiently by interacting with the kernel.

Linux Operations: Managing Files, Directories, and PermissionsApr 23, 2025 am 12:19 AM

In Linux, file and directory management uses ls, cd, mkdir, rm, cp, mv commands, and permission management uses chmod, chown, and chgrp commands. 1. File and directory management commands such as ls-l list detailed information, mkdir-p recursively create directories. 2. Permission management commands such as chmod755file set file permissions, chownuserfile changes file owner, and chgrpgroupfile changes file group. These commands are based on file system structure and user and group systems, and operate and control through system calls and metadata.

See all articles