Disk data virtualization technology

Disk data virtualization technology should be coming, says a Fortune 500 network manager in Storage Virtualization: Technologies for Simplifying Data Storage and Management.

Storage Virtualization: Technologies for Simplifying Data Storage and Management
 

This is excerpt was written by the network manager of a Fortune 500 company, from the book Storage Virtualization: Technologies for Simplifying Data Storage and Management, by Tom Clark and courtesy of Addison-Wesley.

Virtualization of data

I consider virtualization to be multifaceted. Where I am concerned the most is the apparent lack of movement toward disk virtualization similar to EVA. I want disks to be little square things we shove into a controller on the back side, while the front-end interface allows me to:

  1. Group like (speed, size, technology) disks, add to pool.
  2. Ungroup disks, remove from pool.
  3. Leverage any RAID type LUNs drawn from the same large total pool or smaller.

A land where disk data is moved about freely and performance requirements are met by rapid data migration in the pool: This is current in some controllers, and we need it in more of them.

In the future the file system should be assembled across different LUNs with different cost and availability metrics and files are tagged/placed based on their value, security, and retention policies. It's an HSM hybrid where the storage and file system create an ecostructure together. Cheap old data is retired, and each we'll need less online storage.

I think the term virtualization has had its day. I'd like to see birth and death of a file and all the care and feeding that goes along with it through its journey on the media. It's not just disk or LUN virtualization, its data virtualization.

This is excerpt was written by the network manager of a Fortune 500 company, from the book Storage Virtualization: Technologies for Simplifying Data Storage and Management, by Tom Clark and courtesy of Addison-Wesley.

If you found this book excerpt helpful, purchase the book from the publisher.

This was last published in October 2006

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