Linux Zero to Hero Playlist 2024 - What is LVM in Linux with Example in Hindi | MPrashant

#linux #linuxtutorial #mprashant #centos8 #lvm Alright! In this video I have covered, What is LVM and it's example Advantage of LVM Possibilities of LVM Real-time LVM Example Adding New Space/disk using LVM Extending the space using LVM Creating a partition using fdisk command Logical Volume Manager in Hindi Linux LVM Tutorial in Hindi In this video I will cover the usage of following Linux Commdands fdisk -l pvcreate pvdisplay vgcreate vgextend vgdisplay lvcreate lvextedn lvdisplay lvs mount mkfs df -Th ------------------------------------------------------------------ Timelines 00:00 Intro 01:12 What is LVM? 01:50 Examples of LVM 02:42 LVM Structure Diagram 04:58 Advantage of LVM 05:30 Use Cases of LVM 06:30 Various Combinations of LVM components 07:46 How to add a disk using LVM? 08:53 Steps to add new disk using LVM 27:00 Extending a disk using LVM ----------------------------------------------------------------------- NOTES ----------------------------------------------------------------------- Steps of LVM for adding new space Install a new Hard Disk drive Make a partition to use it Designate physical volume (PV) Manage Volume Group (VG) Manage Logical Volume (LV) Apply a filesystem Set a mount point ----------------------------------------------------------------------- Steps for LVM 1. Install a new hard disk drive 2. Designate Physical Volumes (PV) so that it will be available to LVM as storage capacity. Command to create a PV: # pvcreate /dev/sdb1 # pvcreate /dev/sdc The first command designates partition 1 on storage disk b as a PV. The second command sets the total capacity of storage disk c as a PV. Display PV capacity and additional information: # pvdisplay 3. Manage Volume Groups Now we have created PV We can create Volume Group (VGs) A server can have multiple VG A disk can be part of multiple VG PV can only be member of one VG VG must have at least one member (vg00 is our group name and others are our PVs) # vgcreate vg00 /dev/sdb1 /dev/sdc To display information for a VG named vg00 # vgdisplay vg00 4. Now it's time to manage Logical Volumes VG can be subdivided into one or more LVs (lvcreate is the command) # lvcreate -L size(1G or 1T) -n lvname vgname To display information for a LV # lvdisplay /dev/vg00/lvname 5. Now we have LV also, so we can now move with apply a filesytem and set a mount point. - Run the mkfs.ex4 command on the LV. - Create a mount point by using mkdir. - Manually mount the volume using the mount command, or edit the /etc/fstab file to mount the volume automatically when the system boots. - Use the df -h command to verify the storage capacity is available. --------------------------------------------------------------------------------------------