For a long time, VVols have appeared to be a solution looking for a problem. For the uninitiated, we will first give a brief outline of what VVols are and identify the problem that they purport to solve. On the face of it, it is nothing more than the ability to do one VM to one datastore. However, it is much more than that. VVols are the logical extension of this paradigm in a modern environment. VVols allow for policy-based metrics to be applied to individual virtual machines rather than at a datastore level. Why could this not be done with traditional datastores? Quite simply, the ESXi is limited to 256 LUNs per host. Now, this might sound like a lot, but consider that this would limit you to 256 guests per cluster if you wished to utilize vMotion or Storage vMotion. Not exactly optimal.
Previously Published on TVP STrategy (The Virtualization Practice)
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