Created attachment 1244274 [details]
restore log

Description of problem:
Restore HE backup will fail if the HE SD has disks of non-HE VM's

Version-Release number of selected component (if applicable):
rhevm-4.1.0.2-0.2.el7.noarch

How reproducible:
Always

Steps to Reproduce:
1. Deploy HE environment
2. Add the storage domain to the engine(to start auto-import process)
3. Wait until the engine will have HE VM
4. Add non-HE VM with the disk on the HE SD
5. Set global maintenance
6. Backup the engine: # engine-backup --mode=backup --file=engine.backup --log=engine-backup.log
7. Copy the backup file from the HE VM to the host
8. Clean host from HE deploy(reprovisioning)
9. Run the HE deployment again
10. Answer No on the question "Automatically execute engine-setup on the engine appliance on first boot (Yes, No)[Yes]? "
11. Enter to the HE VM and copy the backup file from the host to the HE VM
12. Run restore command: # engine-backup --mode=restore --scope=all --file=engine.backup --log=engine-restore.log  --he-remove-storage-vm --he-remove-hosts --restore-permissions --provision-all-databases

Actual results:
Restore operation failed with the error:
SELECT DeleteHostedEngineStorageVM();
ERROR:  The hosted-engine storage domain contains more than one vm.
FATAL: Cannot execute sql command: --command=SELECT DeleteHostedEngineStorageVM();
2017-01-25 09:25:05 9460: FATAL: Failed cleaning hosted-engine

Expected results:
Restore operation succeeds.
I do not sure what the correct way to fix this problem(maybe we just need to prevent adding non-HE VM disks on the HE SD)

Additional info: