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On the technology front, a fundamental piece that hadn’t yet matured in 2006 was virtualization. And virtualization makes the CDT concept come to life, along with the availability of multicore processors. But first things first. Because our focus has now shifted away from “true continuous” to “very rapid but consistent,” we need to rename the technical approach. We now define this new category of storage as vDPAS, for Virtual Data Protection and Availability Storage. The benefits of this type of storage are numerous, including:
- No backups ever
- Excellent capacity optimization
- Near instantaneous recovery of applications, not just data
- Easy to assign different service-level agreements (SLAs) to different applications
- Images can be mounted instantly, requiring no full image to be created before a volume can be mounted
- Works the same way across physical and virtual servers
- Minimal IT involvement
- Ability to make current images available to test and development groups at the press of a button
- One main source for all data protection tasks
- Applicability to cloud
Several companies, in our view, have made the vDPAS concept a reality in the last few years. Probably
BIO: Arun Taneja is founder and president at Taneja Group, an analyst and consulting group focused on storage and storage-centric server technologies.
This was first published in July 2012