lvm
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Table of Contents
LVM
LVM you can increase / decrease size without any issue.
But it is important you do it in proper steps.
Steps to create LVM from drive
pvcreate /dev/xvdf1 pvdisplay /dev/xvdf1 vgcreate -s 16M vg0 /dev/xvdf1 vgdisplay /dev/xvdf vgdisplay vg0 lvcreate -n lv-vol001 vg0 lvcreate --help lvcreate -A n -L 24.5G -n lv-vol001 vg0 mkfs.ext3 /dev/vg0/lv-vol001
Add drive to LVM
fdisk /dev/xvdk ## Comment "Specify Type 8e by option t" mkfs.ext3 /dev/xvdk1 pvcreate /dev/xvdk1 vgextend vg0 /dev/xvdk1 lvextend -L 300G /dev/vg0/lv-vol001 lvextend -L+99.91G /dev/vg0/lv-vol001 OR lvextend -l +100%FREE /dev/vg0/lv-vol001 resize2fs /dev/vg0/lv-vol001
Reducing Size
umount /home e2fsck -y /dev/mapper/VolGroup00-LogVol00 resize2fs -f /dev/mapper/VolGroup00-LogVol00 1536M lvreduce -L-512M /dev/mapper/VolGroup00-LogVol00 mount /home
Increasing Size
umount /opt/ e2fsck -y /dev/mapper/VolGroup00-LogVol02 lvextend -L+512M /dev/mapper/VolGroup00-LogVol02 resize2fs /dev/mapper/VolGroup00-LogVol02 mount /opt
Worked Example on Live System
- | history
fdisk -l fdisk /dev/sda ## Comment "Specify Type 8e by option t" mkfs.ext3 /dev/sda1 vgextend VolGroup00 /dev/sda1 lvdisplay vgdisplay lvextend -l+1599 /dev/VolGroup00/LogVol00 df -kh vgdisplay lvdisplay resize2fs /dev/VolGroup00/LogVol00 df -kh
lvm.1471366048.txt.gz · Last modified: 2020/08/10 02:30 (external edit)
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