I have been talking a lot about Virtual Volumes (VVols) lately with customers and when I describe what they are a frequent response is “oh so basically RDMs then?”. ..
…ugh sorry I just threw up in my mouth a bit…
The answer to that is an unequivocal “no” of course, but the question deserves a thorough response.
So first let’s look at how they are the same, then let’s look at their differences. And not just how they compare to RDMs, but also VMDKs as you traditionally know them.