[Users] 'Drive' object has no attribute 'format'

[Eduardo Ramos]

Hi all!

I'm getting this strange message on my vdsm.log

Thread-187887::ERROR::2014-02-07 
10:31:13,246::sampling::355::vm.Vm::(collect) 
vmId=`226fb21b-ce7e-45ec-8e6e-75b987374ead`::Stats function failed: 
<AdvancedStatsFunction _highWrite at 0x2d328f0>
Traceback (most recent call last):
   File "/usr/share/vdsm/sampling.py", line 351, in collect
     statsFunction()
   File "/usr/share/vdsm/sampling.py", line 226, in __call__
     retValue = self._function(*args, **kwargs)
   File "/usr/share/vdsm/vm.py", line 528, in _highWrite
     self._vm.extendDrivesIfNeeded()
   File "/usr/share/vdsm/vm.py", line 2285, in extendDrivesIfNeeded
     if not drive.blockDev or drive.format != 'cow':
AttributeError: 'Drive' object has no attribute 'format'

Anyone know what could be happening?

Thanks.