Part 5 - Change the Default Storage Pool (RHEV)

When we create the initial configuration, all VMs are created in the /var/lib/libvirt/images path by default. Here is the procedure to change the default path to an NFS storage path.

List pools

[root@rhev-03 ~]# virsh pool-list
 Name   State   Autostart
---------------------------
default              active     yes

Destroy the default pool from GUI or CLI

root@rhev-02 ~]# virsh pool-destroy default
Pool default destroyed

Undefine pool

[root@rhev-02 ~]# virsh pool-undefine default
Pool default has been undefined

Defining a new pool with the name “Default”

[root@rhev-02 /]# virsh pool-define-as --name default --type dir --target /nfsdata/datavol02
Pool default defined

Set pool to be started when libvirt daemons starts

[root@rhev-02 /]# virsh pool-autostart default
Pool default marked as autostarted

Start pool

[root@rhev-02 /]# virsh pool-start default
Pool default started

Checking pool state

[root@rhev-02 /]# virsh pool-list
 Name      State    Autostart
-------------------------------
 default   active   yes

Verify if the pool default is set to the correct path

root@rhev-02 /]# virsh pool-edit default

Run a test deployment

[root@rhev-02 /]# virt-install --name demo-guest3 --memory 2048  --disk path=/nfsdata/datavol03/guest03/disk.qcow2,size=8 --vcpus 2 --os-type linux --network bridge=virbr0 --location /nfsdata/datavol01/ubuntu-18.04.6-live-server-amd64.iso --extra-args 'console=ttyS0,115200n8 serial'
WARNING  --os-type is deprecated and does nothing. Please stop using it.
WARNING  Graphics requested but DISPLAY is not set. Not running virt-viewer.
WARNING  No console to launch for the guest, defaulting to --wait -1

Starting install...
Retrieving 'vmlinuz'                                                                                                                                                                 | 8.1 MB  00:00:00     
Retrieving 'initrd'                                                                                                                                                                  |  58 MB  00:00:00     
Allocating 'disk.qcow2'                                                                                                                                                              | 8.0 GB  00:00:00     
Creating domain...                                                                                                                                                                   |         00:00:00     

Domain is still running. Installation may be in progress.
Waiting for the installation to complete.