Bug 1778032

Description of problem:

It is possible for the user to put himself in a difficult situation by doing the following:

1. Create a VM
2. Create disk A for the VM on SD A
3. Create disk B for the VM on SD B
4. Detach SD B
   * VM still exists, but only has disk A
5. Attach SD B again
   * In SD B -> VM Import, the VM shows up, cut cannot import as VM exists
   * In SD B -> Disk Import, Disk B is not there

So:
-> Cannot import the VM, because the VM already exists
-> Cannot import only the missing disk, because its not in the Disk Import Tab

There are ways to get out of it:
a) Edit the DB to remove the link between the VM and the Disk on SD B, so that the disk B shows up in the Disk Import Tab
b) Delete the VM while keeping the disk A, Import the VM from SD B while allowing Partial, then re-attach the existing disk A.

Could you please evaluate if this could be made more user friendly?

Version-Release number of selected component (if applicable):
ovirt-engine-4.3.6.7-1.el7.noarch

How reproducible:
100%

Steps to Reproduce:
1. Create a VM
2. Create disk A for the VM on SD A
3. Create disk B for the VM on SD B
4. Detach SD B
5. Attach SD B
6. Try to get the VM back with its 2 disks

Expected results:
Its relatively easy to get the VM back, but its not user friendly