Adding to what me and my colleague shared
I am able to locate the disk images of the VMs, I copied some of them and tried to boot them from another standalone kvm host, however booting the disk images wasn't succesful as it landed on a rescue mode. The strange part is that the VM disk images are 64MB in size, which doesn't seem to be normal for a disk image(see the below command extract).
root@gohan 019a7072-43d5-44b5-bb86-7a7327f02087]# pwd
/gluster_bricks/data/data/659de125-5671-4777-b27e-974aec0a4c9c/images/019a7072-43d5-44b5-bb86-7a7327f02087
[root@gohan 019a7072-43d5-44b5-bb86-7a7327f02087]# ll -h
total 66M
-rw-rw----. 2 vdsm kvm 64M Mar 22 13:48 f5f97478-6ccb-48bc-93b7-2fd5939f40bf
-rw-rw----. 2 vdsm kvm 1.0M Mar 4 12:10 f5f97478-6ccb-48bc-93b7-2fd5939f40bf.lease
-rw-r--r--. 2 vdsm kvm 317 Mar 22 11:06 f5f97478-6ccb-48bc-93b7-2fd5939f40bf.meta
Id suggest to mount the gluster volume and get the disk image from there, instead directly from the brick.