Hi David,

Have you tried running the taskcleaner script with the updated password?

$ PGPASSWORD=xxxxxx /usr/share/ovirt-engine/setup/dbutils/taskcleaner.sh -R

You can also verify if the SPM itself has some locked tasks by running on it:
   vdsm-client Host getAllTasksStatuses

Then clear those tasks:
   vdsm-client Task clear taskID=12345

To verify there are no more async tasks, you can run this SQL query on the engine:
engine=# select * from async_tasks WHERE storage_pool_id = '123';