vSphere 5: VAAI Thin Provisioning Block Reclaim/UNMAP Issue


In the view of the new feature in vSphere 5 on VAAI, the reclaim of space from thin provision datastore whereby a file is deleted from datastore or when a storage vmotion is performed or even a snapshot consolidation. 
Performance issue may arise and create error when the above are performed.

Details can be found in this blog:

Knowledge base:
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