XenServer Snapshots and lost disk space?

I have an issue where the storage used on a datastore for a XenServer (6.2) is completely used-- though only 685.4GB is provisioned.

The problem, however, is that there was free space until snapshots were deleted; but it seems as if deleting the snapshots did not free up the disk space.

How do I go about reclaiming this disk space?  None of the servers show any snapshots taken.
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Dustin SaundersDirector of OperationsAsked:
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Austen LoweConnect With a Mentor Commented:
I followed this article back then https://techblog.jeppson.org/2015/02/reclaim-lost-space-xenserver-6-5/ it may be the same issue.
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Austen LoweCommented:
I think you have to initiate a re-scan of the storage hardware within Xencenter, this happened to me last year and I think that resolved it, took a while to update.
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Dustin SaundersDirector of OperationsAuthor Commented:
I did attempt to run a re-scan but unfortunately this is the result after that.
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Dustin SaundersDirector of OperationsAuthor Commented:
Still having issues, but in SMlog I'm seeing this, assuming it's not ideal.
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Dustin SaundersDirector of OperationsAuthor Commented:
I think the problem may be that the server doesn't have the space to finish the coalesce on this particular VM, so I think the solution is going to be offloading some other machines to another host and seeing if it finishes.  The link you provided was helpful, I think I should be able to get it fixed off the info I found there, thanks!
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Austen LoweCommented:
No problem chap, hope it works out for you.
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