Increase Disk Size And Volume In VMware Linux VM

Increase Disk Size And Volume In VMware Linux Server 

APPLIES TO :  Linux VM running in VMware virtualization platform

ISSUE :  Linux volume running our of space. 

GOAL :  Increase the disk size and increase the volume size in Linux without adding new disk to VG

SOLUTION :  Increase the disk size in VMware settings, scan the disk and resize the volume.

Prerequisites :   NA

The server is having 35GB disk in VG01.

In Linux OS the disk size:

[root@test ~]#  fdisk -l|grep -i "/dev/sd"

[root@test ~]#  pvdisplay

Increase the disk size in VMware settings:

Scan the disk:

[root@test ~]#  ls /sys/class/scsi_disk/
0:0:0:0  0:0:1:0
[root@test ~]#  


[root@test ~]# echo "1" > /sys/class/scsi_disk/0:0:1:0/device/rescan

The disk size is increased:

[root@test ~]#  fdisk -l|grep -i "/dev/sd"

pvresize command will bring the disk space in VG:

[root@test ~]#  pvresize /dev/sdb

[root@test ~]#  pvdisplay

Free space is available in VG and you can increase the volume size:

[root@test ~]#  lvextend -r -L+10GB /dev/mapper/vg01-test

[root@test ~]#  df -h /test

OR 

lvextend -r -l +4608(Free PE) /dev/mapper/vg01-test - This will extend the complete free space to volume