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Expanding Virtual Machine Resources in CentOS 7 This guide provides a comprehensive walkthrough for expanding memory and disk space in a CentOS 7 virtual machine running on VMware Workstation. The process involves both VMware configuration changes and Linux system administration tasks to properly utilize the additional resources. Virtual Machin ...

Enviroment Overview This guide demonstrates configuring Logical Volume Management on a CentOS 7 system with two newly attached storage devices. The setup enables flexible capacity planning and simplifies future storage expansion. # Display current disk utilization [root@srv-lvm-01 ~]# lsblk NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT vda 253:0 ...

Table of Contents LVM Overview Core Concepts Common Operations Disk Scanning Creating LVM Volumes Expanding Logical Volumes Shrinking Logical Volumes Swap Partition Expansion Command Reference LVM Overview LVM (Logical Volume Manager) is a storage device management technology that provides logical abstraction layer between physical storage de ...

Regular Expressions Regular expressions enable pattern matching across data streams using wildcards, metacharacters, and keywords to identify and extract specific information. Two primary syntax standards exist: Basic Regular Expressions (BRE) and Extended Regular Expressions (ERE). The key difference lies in metacharacter handling—ERE requires ...

Introduction to LVM What is LVM LVM (Logical Volume Manager) originated as IBM's storage management solution for AIX. It introduces a logical abstraction layer between physical disks and partitions, allowing multiple partitions or entire disks to be combined into a single logical volume (functioning as a virtual hard drive). This approach signi ...