Cannot activate storage domain due to SanlockException(13, 'Sanlock lockspace add failure', 'Permission denied'))

Issue

• Unable to activate storage domain due to following errors in vdsm.log:

Thread-19::DEBUG::2013-12-02 13:25:05,569::clusterlock::215::SANLock::(hasHostId) Unable to inquire sanlock lockspace status, returning False
Traceback (most recent call last):
  File "/usr/share/vdsm/storage/clusterlock.py", line 212, in hasHostId
    hostId, self._idsPath)
SanlockException: (13, 'Sanlock lockspace inquire failure', 'Permission denied')
Thread-19::INFO::2013-12-02 13:25:05,570::clusterlock::173::SANLock::(acquireHostId) Acquiring host id for domain a20ba350-0f56-411d-9714-9bc89dbb63d0 (id: 3)
Thread-19::DEBUG::2013-12-02 13:25:05,570::domainMonitor::250::Storage.DomainMonitorThread::(_monitorDomain) Unable to issue the acquire host id 3 request for domain a20ba350-0f56-411d-9714-9bc89dbb63d0
Traceback (most recent call last):
  File "/usr/share/vdsm/storage/domainMonitor.py", line 246, in _monitorDomain
    self.domain.acquireHostId(self.hostId, async=True)
  File "/usr/share/vdsm/storage/sd.py", line 445, in acquireHostId
    self._clusterLock.acquireHostId(hostId, async)
  File "/usr/share/vdsm/storage/clusterlock.py", line 188, in acquireHostId
    raise se.AcquireHostIdFailure(self._sdUUID, e)
AcquireHostIdFailure: Cannot acquire host id: ('a20ba350-0f56-411d-9714-9bc89dbb63d0', SanlockException(13, 'Sanlock lockspace add failure', 'Permission denied'))