rhel9-increased-bison                                   Bound         pvc-11f75641-4edb-48b2-a939-093f5ef322b3   30Gi       RWX            ocs-external-storagecluster-ceph-rbd   6d23h

# oc get dv bison-a54871db-4ebe-40c5-b4a6-f4066a4ff618-5crkc -o yaml|yq '.spec'
source:
  http:
    certConfigMap: bison-a54871db-4ebe-40c5-b4a6-f4066a4ff618-wddvq
    secretExtraHeaders:
      - bison-a54871db-4ebe-40c5-b4a6-f4066a4ff618-mpn2l
    url: https://virt-exportproxy-openshift-cnv.apps.aries.tt.testing/api/export.kubevirt.io/v1alpha1/namespaces/nijin-cnv/virtualmachineexports/rhel9-increased-bison/volumes/rhel9-increased-bison/disk.img.gz
storage:
  resources:
    requests:
      storage: "32212254720"
  storageClassName: ocs-external-storagecluster-ceph-rbd

prime-0944b362-555f-47da-b823-accd2b0e5a32-scratch   Bound     pvc-8edadf63-0183-4ab0-ba6e-8594d3fb96c5   30Gi       RWO            ocs-external-storagecluster-ceph-rbd   52m

Filesystem     1K-blocks     Used Available Use% Mounted on
/dev/rbd1       30787492 21242400   9528708  70% /scratch

I0724 11:56:03.022607       1 importer.go:103] Starting importer
I0724 11:56:03.023885       1 importer.go:176] begin import process
I0724 11:56:03.036407       1 http-datasource.go:240] Attempting to get certs from /certs/ca.pem
E0724 11:56:03.055880       1 http-datasource.go:406] http: expected status code 200, got 400
I0724 11:56:03.065280       1 data-processor.go:360] Calculating available size
I0724 11:56:03.066364       1 data-processor.go:368] Checking out block volume size.
I0724 11:56:03.066377       1 data-processor.go:380] Request image size not empty.
I0724 11:56:03.066384       1 data-processor.go:385] Target size 32212254720.
I0724 11:56:03.066732       1 data-processor.go:259] New phase: TransferScratch
I0724 11:56:03.066902       1 util.go:194] Writing data...
E0724 11:59:38.418447       1 util.go:196] Unable to write file from dataReader: write /scratch/tmpimage: no space left on device
E0724 11:59:38.815443       1 data-processor.go:255] write /scratch/tmpimage: no space left on device
unable to write to file

OpenShift Virtualization   4.15.3

100%

1. Create a VM on the source OCP cluster in a block PVC.
2. Using MTV, start a migration of this VM to another cluster and also make sure that the destination storage class default volume mode is block.
3. Do an oc logs -f on the created importer pod. It will fail with "no space left on device". The importer pod will keep restarting itself and we may miss the logs. So we need to watch it using oc logs -f <pod>

Not able to migrate VM from OCP to another OCP if the source and target is block PVC.