L.1.1 Resizing Instances if Setup is in KVM Environment

Note:

Perform this procedure on the Host where VM is deployed.

1. Shutdown VM by running the following command:

   virsh shutdown <VM Name>

   Wait for the VM to shut down.

2. Run the following commands:

   virsh dumpxml <VM Name> | grep 'disk type' -A 5

   Output:

   [root@ol-server ~]# virsh dumpxml Dsrtestsetup-Noam1 | grep 'disk type' -A 5
   <disk type='file' device='disk'>
   <driver name='qemu' type='qcow2'/>
   <source file='/mnt/data/ova/Dsrtestsetup-Noam1.qcow2'/>
   <target dev='vda' bus='virtio'/>
   <address type='pci' domain='0x0000' bus='0x05' slot='0x00' function='0x0'/>
   </disk>

   qemu-img info {{ path with image name }}.qcow2

   Output:

   [root@ol-server ~]# qemu-img info /mnt/data/ova/Dsrtestsetup-Noam1.qcow2
   image: /mnt/data/ova/Dsrtestsetup-Noam1.qcow2
   file format: qcow2
   virtual size: 120 GiB (128849018880 bytes)
   disk size: 7.56 GiB
   cluster_size: 65536
   Format specific information:
       compat: 1.1
       compression type: zlib
       lazy refcounts: false
       refcount bits: 16
       corrupt: false

   qemu-img resize {{ path with image name }}.qcow2 +<additional required size>G

   Output:

   [root@ol-server ~]# qemu-img resize /mnt/data/ova/Dsrtestsetup-Noam1.qcow2 +40G
   Image resized.

3. Verify VM sixe, by running the following command:

   qemu-img info {{ path with image name }}.qcow2  (To verify VM size)

   Output:

   [root@ol-server ~]# qemu-img info /mnt/data/ova/Dsrtestsetup-Noam1.qcow2
   image: /mnt/data/ova/Dsrtestsetup-Noam1.qcow2
   file format: qcow2virtual size: 160 GiB (171798691840 bytes)
   disk size: 7.56 GiB
   cluster_size: 65536
   Format specific information:
       compat: 1.1
       compression type: zlib
       lazy refcounts: false
       refcount bits: 16
       corrupt: false
       extended l2: false

4. Start VM by running the following command:

   virsh start <VM Name>