After I have updated one host with "yum update -y", I have this message and the host fails to connect to storage server (ISO type) (other host not updated yet are working fine):

Thread-25::WARNING::2016-11-21 17:26:18,152::lvm::376::Storage.LVM::(_reloadvgs) lvm vgs failed: 5 [] ['  WARNING: lvmetad is running but disabled. Restart lvmetad before enabling it!', '  Volume group "b55443b5-39a0-4cb6-8018-9c508815dd28" not found', '  Cannot process volume group b55443b5-39a0-4cb6-8018-9c508815dd28']
Thread-25::ERROR::2016-11-21 17:26:18,155::sdc::146::Storage.StorageDomainCache::(_findDomain) domain b55443b5-39a0-4cb6-8018-9c508815dd28 not found
Traceback (most recent call last):
  File "/usr/share/vdsm/storage/sdc.py", line 144, in _findDomain
    dom = findMethod(sdUUID)
  File "/usr/share/vdsm/storage/sdc.py", line 174, in _findUnfetchedDomain
    raise se.StorageDomainDoesNotExist(sdUUID)
StorageDomainDoesNotExist: Storage domain does not exist: (u'b55443b5-39a0-4cb6-8018-9c508815dd28',)
Thread-25::ERROR::2016-11-21 17:26:18,156::monitor::328::Storage.Monitor::(_setupLoop) Setting up monitor for b55443b5-39a0-4cb6-8018-9c508815dd28 failed
Traceback (most recent call last):
  File "/usr/share/vdsm/storage/monitor.py", line 325, in _setupLoop
    self._setupMonitor()
  File "/usr/share/vdsm/storage/monitor.py", line 348, in _setupMonitor
    self._produceDomain()
  File "/usr/lib/python2.7/site-packages/vdsm/utils.py", line 405, in wrapper
    value = meth(self, *a, **kw)
  File "/usr/share/vdsm/storage/monitor.py", line 366, in _produceDomain
    self.domain = sdCache.produce(self.sdUUID)
  File "/usr/share/vdsm/storage/sdc.py", line 101, in produce
    domain.getRealDomain()
  File "/usr/share/vdsm/storage/sdc.py", line 53, in getRealDomain
    return self._cache._realProduce(self._sdUUID)
  File "/usr/share/vdsm/storage/sdc.py", line 125, in _realProduce
    domain = self._findDomain(sdUUID)
  File "/usr/share/vdsm/storage/sdc.py", line 144, in _findDomain
    dom = findMethod(sdUUID)
  File "/usr/share/vdsm/storage/sdc.py", line 174, in _findUnfetchedDomain
    raise se.StorageDomainDoesNotExist(sdUUID)
StorageDomainDoesNotExist: Storage domain does not exist: (u'b55443b5-39a0-4cb6-8018-9c508815dd28',)