LVM or Logical Volume Management used to create, manage and delete logical volumes in Linux operating systems. LVM provides RAID like architectures for disk drives. We can create single logical volume from multiple physical disks. Basics LVM consist of 3 main concepts: Physical Volumes Volume Groups Logical Volumes Let me explain in a simple manner. By adding one or more than one Physical Volume we will create a Volume Group...
Linux distributions like Ubuntu, Debian, CentOS, RHEL and others uses disks by mounting them to the file system. We have all ready examined mount command in the following tutorial. In this tutorial we will learn how to umount the disk in a Linux system. Linux Mount Command Tutorial With Examples Before Unmount Before unmount we should be sure that all changes are written to the file system and disk. So we...
File systems are important part of the operating systems. Files and folders are stored in file system. There are a lot of different type of files systems. We generally uses the Linux distribution provided file system without changing it. ext4 is the most used and stable file system in the Linux ecosystem. There are alternatives too those can be used for specific situations. In this tutorial we will look pros...
Linux have a lot of utilities to manage, diagnose, check and correct different type of file systems. these utilities provide a lot of features especially Linux native file systems like ext2,ext3,ext4 etc. One of the most popular tool is fsck tool. In this tutorial we will look general usage of fsck Syntax Fsck have similar syntax with other Linux tools but have some difference like adding file system specific options to...
As we know Linux operating system mainly uses files and folders as operational units. Files an folders are stored in files systems and disks. There are different tools to manage file systems and disks. But mount is de facto command used to mount and list disks and files systems. In this tutorial we will look different type of usages of mount. List Mounts Normally most of the Linux operating systems are...
File systems are main component of operating systems. File systems provide required infrastructure for holding data permanently operating system level. Linux supports diverse type of file systems. We will look how to create major file systems on partitions. Standard tool for Linux to create operating system is mkfs. Create Ext4 File System Ext4 file system is most popular file system of Linux world. This file system is used most of...
When administrating Linux systems we can found us tracking disk usage. Linux uses different partitions to store data. There are some temp files located in /tmp or different paths. Some applications are installed into the /opt path. So managing paths and disk usage may become hard in Linux. There are some GUI applications like KDirStat but they are useful for only GUI environments. We will look different commands in this tutorial to get disk...
