We have a 2012 Hyper-V Cluster with 4 nodes and 2 CSVs. Volume1 ran out of space last night and all the VMs on that Volume went into a paused state. I was sure I had plenty of space, but I extended the SAN volume by 200 GBs anyway to get
the VMs working again and now I'm back down to only 150 GBs free tonight again. When I go to the properties of C:\ClusterStorage\Volume1, it says there are 2.25 TBs used of 2.4 TBs total space. I then check the properties of the only folder
on that Volume that holds all my VMs and it says there is only 1.83 TBs used. There are several hundred GBs of storage space being used by something that I can't see. We just started backing up our Hyper-V cluster with DPM 2012 SP1 last week and
it seems that this may have something to do with it as this never happened before that. Volume2 has plenty of free space and accurately shows the same amount of used space in both areas. Why is this happening? Where is this "mystery"
data?
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