Hi,


I read this article and found that we can expand the VM disk online but it doesn't expand the filesystem of the VM.....

I tried the following but still it didn't work..all the below commands failed on the host..

I am using :- 
1. Ovirt 3.4.3
2. Glusterfs 3.5

https://inthecloud.readthedocs.org/zh_CN/latest/index.html it's in Chinese but can translate here :- http://translate.google.com.hk/translate?hl=en&sl=zh-CN&u=https://inthecloud.readthedocs.org/&prev=/search%3Fq%3Dhttps://inthecloud.readthedocs.org%26biw%3D1440%26bih%3D789


Virtual Machine File System expansion

oVirt 3.4 disks can be online expansion, but for the disk within a file system requires a separate support for Linux and Windows lists commonly used method in this expansion.

Linux file system expansion (libguestfs)

For details, please refer to libguestfs site .

  1. View disk 
  # Virt-filesystem --all --long -h -a hda.img
  1. Expansion disk copy to be created, while the expansion of 10G (Assuming the original disk size is 10G)

For RAW format: 

  # Truncate -r hda.img hda-new.img
 # Truncate -s + 10G hda-new.img

For QCOW2 and other compressed formats: 

  # Qemu-img create -f qcow2 -o preallocation = metadata hda-new.img 20G
  1. Extended partition size

Ordinary extended partition, / boot partition expansion 200M, all the rest to the / partition: 

  # Virt-resize --resize / dev / sda1 = + 200M --expand / dev / sda2 hda.img hda-new.img

LVM partition expansion, expansion lv_root logical volume: 

  # Virt-resize --expand / dev / sda2 --LV-expand / dev / vg_livecd / lv_root hda.qcow2 hda-new.qcow2


Thanks,
Punit