Hybrid VMware should allow an organization to run a virtual machine either on-premises or in the cloud. And that transfer between operating locations should be able to occur at a moment’s notice. The problem is, as we discuss in our StorageShort, in most environments, to accomplish this goal, many of the current solutions create two separate copies of data in both locations.
There are multiple challenges to the two copy system. First, there is the obvious cost of having at least one other copy of the production environment available somewhere else. And since this second copy may be called on to be production, the storage used for this can’t be the cheapest available, most organizations will opt to use the tier 1 storage offering from the cloud provider.
The second problem is, of course, the management of the two copies. Again, since the second copy can be called upon at a moment’s notice to be the production instance, IT has to make sure the copy is being updated regularly and those updates are actually working, which means regular testing.
A potential solution is to leverage cloud storage as primary storage, meaning the only copy is actually in the cloud. Obviously, there is a latency problem to overcome, but that can be done with the use of an on-premises cache and a locally located second tier of storage as we discuss in our blog “How to Use the Cloud as Primary VMware Storage.”
With the right architecture, VMware storage can be 100% in the cloud, and a single copy + a DR copy is all the organization will need; but both copies are off-premises. Then, the organization can use the additional capabilities of the cloud to truly accelerate the organization, freeing it from day-to-day storage management challenges.