When you really boil down the core of IT -- it's to deliver the services and access to data that the business requires. That includes understanding the needs of the business, its dependencies on things like its data, and then ensuring the availability of that data.
"Availability" can be achieved in two ways = Resilience and Recoverability.
- Resilience are the clustering/mirroring technologies that many of us think of as "traditional high availability.”
- Recoverability are the myriad methods of rapidly restoring functionality through the use of technologies like near-instantaneous VM restoration or leveraging snapshots.
The modern data center by definition should be highly virtualized and must also be both resilient and recoverable, in order to be dependable enough to then deliver the other promises of modern IT around agility, flexibility, etc. With that in mind, here is a short video of what folks should be looking for to fulfill the recoverability requirements of highly virtualized environments, thus helping to achieve the availability of the modern data center:
As always, thanks for watching.