rhev-h shows errors:vdsm Storage.DomainMonitorThread ERROR

Issue

On rhev-h, we have the following messages output on the screen continuously.

rhev-h shows errors:vdsm Storage.DomainMonitorThread ERROR
Message from syslogd@h-p-17 at Sep  2 17:23:12 ...
 >vdsm Storage.DomainMonitorThread ERROR Error while collecting domain 97f09e0a-0ac2-4f5d-90f7-779f450af132 
monitoring information#012Traceback (most recent call last):#012  File "/usr/share/vdsm/storage/domainMonitor.py", 
line 182, in _monitorDomain#012    self.domain = sdCache.produce(self.sdUUID)#012  File "/usr/share/vdsm/storage
/sdc.py", line 97, in produce#012    domain.getRealDomain()#012  File "/usr/share/vdsm/storage/sdc.py", line 52,
 in getRealDomain#012    return self._cache._realProduce(self._sdUUID)#012  File "/usr/share/vdsm/storage/sdc.py",
 line 121, in _realProduce#012    domain = self._findDomain(sdUUID)#012  File "/usr/share/vdsm/storage/sdc.py", 
line 152, in _findDomain#012    raise se.StorageDomainDoesNotExist(sdUUID)#012StorageDomainDoesNotExist: Storage 
domain does not exist: (u'97f09e0a-0ac2-4f5d-90f7-779f450af132',)